Practice Test Version 3.8 Q1 Which two statements describe the purpose of the technology prefix? (Choose two.) C. Technology prefixes are used to identify different types or classes of gateways. D. Technology prefixes are prepended to the destination address by the gateway. Q2 Which statement is true about only out-of-band signaling? B. Signaling bits are sent in a special order in a dedicated signaling frame. Q3 Examine the example output. hostname GW1 ! interface Ethernet 0/0 ip address 172.16.2.1 255.255.255.0 h323-gateway voip interface h323-gateway voip id GK1-zone1.abc.com abc.com ipaddr 172.16.2.2 h323-gateway voip h323-id GW1 h323-gateway voip bind srcaddr 172.16.2.1 ! dial-peer voice 1 voip destination-pattern 1212. session-target ras ! dial-peer voice 2 pots destination-pattern2125551212 no register e164 ! end Choose the command that will restore communication with gatekeeper functionality to this device. B. gateway Q4 Refer to the exhibit. Which two actions would be initiated by a UAS? (Choose two.)

A. Contacts the user when a SIP invitation is received C. Returns a response on behalf of the user to the invitation originator Q5 Which option is true concerning the MGCP call agent? B. Provides only call signaling and call setup Q6 Which statement best describes gatekeeper operation when the technology prefix is matched and the gatekeeper is using the technology prefix with hopoff? A. The gatekeeper always forwards the call to the zone specified in the hopoff command. Q7 Refer to the exhibit. All IP phones are SCCP phones. Phone D makes an internal call to phone G. Which call setup signaling statement is true?

E. Phone D signals the call agent. The call agent processes the call and signals phone G.

Q8 Refer to the exhibit. All IP phones use SCCP. Fax machine F calls fax machine J. Which call setup signaling statement is correct?

E. Gateway A processes the call and signals gateway B. Gateway B processes the call. During the setup, the gateways query the gatekeeper for address resolution and call setup permission. Q9 Refer to the exhibit. Three department managers share the directory number 3000. The Marketing manager's phone is attached to port 1/1. The Engineering manager's phone is attached to port 1/2. The Shipping manager's phone is attached to port 1/3. In which situation would an incoming call ring on the Shipping manager's phone?

E. The Engineering manager and Marketing manager are on the phone. Q10 DRAG DROP Using Cisco Unified Communications Manager Express, what four steps are necessary to implement COR? (Choose four.)

Answer:

Q11 At what point does the MGCP call agent release the setup of the call path to the residential gateways? D. After the call agent has sent a connection request to both the source and destination and has relayed a modify-connection request to the source so that the source and destination can set up the call path Q12 Which two codes together make up the number that follows the E.164 recommendation numbering scheme? (Choose two.) A. Country code B. Subscriber code Q13 When using CUBE, which two statements describe how media flow-through differs from media flow-around? (Choose two.) E. Media flow-around terminates the signaling stream and allows RTP streams to flow directly between endpoints. F. Media flow-through provides address hiding by terminating both signaling and RTP streams. Q14 HOTSPOT Refer to the exhibit. The Acme Corp. uses H.323 to place calls to their supplier RR Industries. Acme also has a voice connection to an ITSP for long distance over a SIP network. Which configuration should Acme use to deploy the CUBE?

Answer:

Q15 Which two are types of Call Admission Control? (Choose two.) A. Local C. Resource-based Q16 Using a standalone IOS gateway, which three steps are necessary to implement COR? (Choose three.) B. Define COR labels. C. Configure COR lists. F. Configure dial peers and assign COR lists. Q17 Refer to the exhibit. You have configured a gatekeeper and an IP-IP gateway on the same router. When you look at the output from the show gatekeeper endpoint command, the IP-IP gateway is not registered with the gatekeeper. What needs to be configured to resolve this issue?

B. You need to add a VoIP dial peer to the configuration. Q18 Which process changes an internal extension into a fully qualified external PSTN number before matching to a dial peer? C. Number expansion Q19 The SJ local zone contains a gatekeeper that controls two gateways, SJ1 and SJ2. Both gateways provide access to area code 408. Which two command strings should be entered into the gatekeeper to give the SJ2 gateway priority over the SJ1 gateway? (Choose two.) A. Zoneprefix SJ 408 gw-priority 6 SJ1 D. Zoneprefix SJ 408 gw-priority 10 SJ2 Answer: A,D Q20 Which command parameter specifies that the router should not attempt to initiate a trunk connection but should wait for an incoming call before establishing the trunk? E. connection-trunk 404555....answer-mode Q21 HOTSPOT

Refer to the exhibit. Choose the correct configuration command set that will allow the gateway in zone BR to register with the gatekeeper at HQ so that the gateway is placed in zone BR.

Q22 Which best defines an ACD? C. A telephone system that responds to a caller with a voice menu and helps to appropriately connect the call Q23 You have been asked to deploy a gatekeeper to support CUBE that will connect your organizational domain to the domain of an Internet Telephony Service Provider so that callers can reach the 407 area code. Which configuration will support this function?

A. Q24 What is the E.164 standard? D. International public telecommunications numbering plan Q25 You have set up a complex dial plan using translation rules. The following translation rule has been configured. What output would correspond to the test translation-rule command?

translation-rule 1 rule 0 ^0.. 215550210 rule 1 ^1.. 215550211 rule 2 ^2.. 215550212 rule 3 ^3.. 215550213 rule 4 ^4.. 215550214 rule 5 ^5.. 215550215 rule 6 ^6.. 215550216 rule 7 ^7.. 215550217 rule 8 ^8.. 215550218 rule 9 ^9.. 215550210 A. test translation-rule 1 512 The replaced number: 21555021512 Q26 A customer needs to configure a CAS E & M circuit that will support inbound and outbound DNIS and inbound ANI. Which configuration will accomplish this task? C. ds0-group 0 timeslots 1-24 type e&m-fgd Q27 To hide its identity when initiating calls, Phone B requests that Server B place its calls for it. What kind of device is Server B?

A. Proxy Q28 Which dial-peer command can set the parameters that search through a series of dial peers for a destination that is not in use? A. Hunt Q29 Refer to the H.323 message in the exhibit. What is the gateway doing with the gatekeeper?

C. Lightweight registration Q30 A customer wants to roll out IP telephony to the regional office. They are currently using the G.711 codec at headquarters. Which codec will support voice activity detection and comfort noise generation? C. G.729B Q31 DRAG DROP Which three services are supported by CUBE when supporting H323-to-SIP calls? (Choose three.)

Answer:

Q32 Refer to the exhibit. Which message ID can be used to track this call from the requesting endpoint?

A. 8204 Answer: A Q33 Refer to the exhibit. Which dial peer configuration will block phone A from making long distance calls?

1 A. A B. B C. C D. D E. E Answer: A,E Q34 Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?

C. 79,200 bps Q35 Where would you assign COR lists in Cisco Unified Communications Manager Express? B. ephone-dn Q36 What does a gatekeeper do when it matches a technology prefix? B. Sends both the technology prefix and zone prefix to the remote gatekeeper Q37 Which CUBE configuration will support H.323 protocol interworking and address hiding? C. voice service voip allow-connections h323 to r323 Q38 Which statement is true about MGCP?

D. Call agents order and direct each step of call completion for the endpoints. Q39 A telemarketing firm needs to use number translation for incoming and outgoing calls. They have defined two translation profiles, one for incoming and one for outgoing calls. What can be used to simplify this task? D. Trunk group Q40 Refer to the exhibit. Your customer has connected an existing PBX to the IP network. The PBX users can make calls to other extensions on the PBX but are unable to call the test extension 2201. All other applications on the IP network are working correctly. Compare the PBX system requirements to the configuration for R1 in the exhibit. Which configuration change will resolve the problem? 4

C. Configure operation 4-wire and type 5 on voice-port1/1/0

Q41 Refer to the output from the debug h225 asn1 command in the exhibit. You have configured a gatekeeper with two local zones, hq and br. You want the gateway at the branch location to register with zone BR. What needs to be corrected in the branch gateway to resolve the issue? 5

B. Change the gatekeeper-id in the h323-gateway voip id command.

Q42 Refer to the exhibit. Which protocol provides the necessary sequence numbers so that voice packets originating at R1 are played in the correct order at R5?

B. RTP Q43 A new business in Great Britain needs to have a PSTN connection that will handle a maximum of 30 inbound and outbound calls at any given time. The customer only has one slot available on the designated PSTN router. Which digital line type should be recommended? C. ISDN E1 PRI Q44 Refer to the exhibit. When extension 201-555-1000 dials 404-555-1200, how are the digits manipulated in R1 so that they are presented correctly at R2?

A. The outbound VoIP dial peer is matched and all digits are sent. Q45 Refer to the exhibit. The Carmichael caller dials the site access code for Merrimack (6) followed by the four-digit extension number of the destination phone (0124). If the call is going to go across the IP WAN, which action will have to be taken?

B. Strip the site access code and send four digits. Q46 Refer to the exhibit. You have a client that is testing a directory gatekeeper in the lab to provide address resolution between two different zones. Two of the commands in the running-config output are incorrect.

Which two changes will correct the configuration? (Choose two.)

A. replace zone prefix GK-A 770 . . . . . . . with zone prefix GK-A 770 . . . . B. replace zone prefix GK-B 404 . . . . with zone prefix GK-B 404 . . . . . . . C. replace zone local DGK acme.com with zone remote DGK acme.com D. replace zone local GK-A acme.com 172.16.14.44 1719 with zone remote GK-A acme.com 172.16.14.44 1719 1 E. replace zone remote GK-B acme.com 172.16.14.99 1719 with zone local GK-B acme.com 172.16.14.99 1719 Answer: A,D

Q47 Refer to the exhibit. All IP phones use SCCP. Phone D calls phone G. Which statement is true about the audio path?

C. The voice packets travel directly from phone to phone. Q48 Refer to the exhibit.

Your customers dial in to your company using a local number, and their calls cross the WAN to an IVR system. They are complaining that the IVR system does not always accept their input or may get it wrong. The IVR system has been checked and is working properly. What needs to be added to the dial peer on the incoming H.323 gateway to correct this problem? D. dtmf-relay h245-alphanumeric

Q49 What is the best description of an MGCP endpoint? A. The interconnection between packet and traditional telephone networks Q50 In North America, which E&M signaling type is used most often for geographically separated equipment? B. Type II Q51 Which three are supervisory signals? (Choose three.) B. On hook C. Off hook E. Ring Q52 Refer to the exhibit. Select the recommended QoS configuration for the LAN segments of the network in the campus and branch office.

C. Configure a PQ with WRR. Use ACLs to classify voice traffic. Isolate voice traffic in its own VLAN. Configure access switches to trust traffic from IP phones. Q53 The D channel in ISDN is an example of which two signaling methods? (Choose two.) B. CCS E. Out-of-band Q54 Refer to the exhibit. Which configuration option will allow communication between a voiceenabled router and a PBX?

A. voice port 1/0/0 signalingwink-start operation 4-wire auto-cut-through type 1 B. voice port 1/0/0 signalingimmediate-start operation 4-wire type 5 C. voice port 1/0/0 signaling delay-start auto-cut-through operation 4-wire type 3 6 D. voice port 1/0/0 signaling wink-start operation 4-wire type 4

Answer: A Q55 Which dial plan characteristic shows the most obvious improvement by dropping a number translation step? B. Post-dial delay Q56 Refer to the exhibit. Users are not able to complete a call from 678-555-1212 to 770-555-1111. What is the correct diagnosis for the problem?

A. Incorrect destination-pattern in router 1 Q57 What is the most common E&M type used outside North America? E. Type V Q58 Site A uses three-digit internal numbers and remote Site B uses four-digit internal numbers. All calls to the PSTN are routed through Site B. What dial plan below best represents provision simplicity, assuming the NANP numbering plan? C. Translate all called numbers leaving Site A to ten digits. Q59

Refer to the exhibit. Enzo's Bikes manufactures high end bicycle frames. Until recently they sold only to bicycle shops; however, now they are starting to sell to end users. They need a way to add two additional sales staff and ensure that the senior sales technician always gets the first call. Drew is the senior sales technician. Bob is the newest sales technician. Bob's phone should always be the last one chosen for incoming sales calls, after Drew and James. Bob's phone should be chosen first only when Drew and James are busy on calls.

Select the correct dial-peer command set for Bob's phone. A. dial-peer voice 3 pots destination-pattern 5555110 preference 2 B. dial-peer voice 3 pots destination-pattern 5555110 preference 0

C. dial-peer voice 3 pots destination-pattern 5555110 preference firstlast D. dial-peer voice 3 pots destination-pattern 5555110 preference 3 huntstop E. dial-peer voice 3 pots destination-pattern 5555110 preference high Answer: A Q60 Refer to the exhibit. You have been asked to configure a dial peer on R2 that will match only the extensions of the four telephones attached. Which dial-peer statement will you use?

D. dial-peer voice 1 pots destination-pattern 5552[5-6][05]0 Q61 When setting up a VoIP call, what is the first thing a gateway router tries to match to a dialed number? D. Destination pattern Q62 Refer to the IOS configuration in the exhibit. How will the next incoming call be routed?

E. The call will be routed to the next available channel, starting from channel 24, hunting down toward channel 1. Q63 Identify the VoIP network component that provides CAC, bandwidth control and management, and address translation. B. Gatekeeper Q64 Technology prefix is a discriminator which is used for distinguishing between gateways having specific capabilities within a given zone. Which two descriptions are true about the purpose of the technology prefix? (Choose two.) C. Technology prefixes are prepended to the destination address by the gateway. D. Technology prefixes are used to identify different types or classes of gateways. Q65 Which two of the following signaling protocols are peer-to-peer protocols? (Choose 2.) A. H.323 C. SIP Q66 For the following options, which statement best describes only out-of-band signaling? B. Signaling bits are sent in a special order in a dedicated signaling frame.

Q67 Which three headers are compressed by cRTP? (Choose 3.) B. IP D. UDP E. RTP Answer: B,D,E Q68 The partial configuration of a Cisco device of the Company is shown as follows: Which command will restore communication with gatekeeper functionality to this device on the basis of the example output?

B. gateway Q69 Which of the following best describes a function of RTCP? C. RTCP provides out-of-band control information for an RTP flow.

Q70 Which three of the following are appropriate solutions to address latency issues in a VoIP network? (Choose 3.) B. Increase bandwidth. D. Fragment data packets. E. Prioritize voice packets. Q71 For the following options, which one is correct about the MGCP call agent? B. Provides only call signaling and call setup Q72 Which two of the following VoIP gateway platforms are considered to be Integrated Services Routers (ISRs)? (Choose 2.) B. Cisco 2800 Series D. Cisco 3800 Series Q73 In a Cisco UCM single-site deployment, what is the maximum number of IP phones that can register with a UCM cluster? D. 30,000 Q74 As a network technician for the Company, you are responsible for designing and maintaining VoIP network. The VoIP network topology of the Company is displayed as follows: On the basis of the exhibit presented. All IP phones are SCCP phones. Phone D makes an internal call to phone G. Which call setup signaling statement is correct?

E. Phone D signals the call agent. The call agent processes the call and signals phone G. Q75 In a Cisco UCM multisite WAN with centralized call-processing deployment model, what redundancy feature should be configured on remote site routers to provide basic IP telephony services in the event of a WAN outage? B. SRST Q76 Which four of the following are Cisco-supported IP telephony deployment models? (Choose 4.) A. Single site C. Multisite with centralized call processing D. Clustering over the IP WAN E. Multisite with distributed call processing Q77 Identify two gateway supplementary services. (Choose 2.) A. Hold C. Transfer

Q78 According to the G.114 recommendation, the maximum one-way delay for voice should ideally not exceed how much delay? B. 150 ms Q79 On the basis of the related knowledge, at which point does the MGCP call agent release the setup of the call path to the residential gateways? D. After the call agent has sent a connection request to both the source and destination and has relayed a modify-connection request to the source so that the source and destination can set up the call path Q80 Identify the preferred voice quality measurement approach for VoIP networks. B. PESQ Q81 HOTSPOT Hotspot Answer:

Q82 Which method of fax relay uses a store-and-forward approach? B. T.37 Q83 When using CUBE, which two statements are true about how media flow-through differs from media flow-around? (Choose two.) C. Media flow-around terminates the signaling stream and allows RTP streams to flow directly between endpoints. D. Media flow-through provides address hiding by terminating both signaling and RTP streams. Q84 What codec is required for fax pass-through and/or modem pass-through? A. G.711 Q85 Identify three quality issues that can result because of a lack of network bandwidth.(Choose 3.) A. Jitter C. Delay D. Packet loss Answer: A,C,D Q86 Hotspot Call Admission Control (CAC) is a concept that applies to voice traffic only-not data traffic. Which two types are of Call Admission Control? (Choose two). A. Resource-based C. Local Q87 What protocol is used to communicate between a DSP farm configured on an IOS router and a Cisco Unified Communications Manager server? D. SCCP Q88 When using a standalone IOS gateway, which three steps are necessary to implement COR? B. Define COR labels C. Configure COR lists. F. Configure dial peers and assign COR lists. Q89 What is the Layer 2 overhead (in bytes) for Frame Relay traffic? C. 6 bytes

Q90 As a Companynetwork technician, you are responsible for establishing and maintaining VoIP network. You have configured a gatekeeper and an IP-IP gateway on the same router. When you examine the output from the show gatekeeper endpoint command, the IP-IP gateway is not registered with the gatekeeper. What needs to be configured to resolve this issue?

B. You need to add a VoIP dial peer to the configuration. Q91 Which three factors must be considered when calculating the total bandwidth of a VoIP call? (Choose 3.) A. Codec size C. Data-link overhead D. Sample size Q92 Observe the following options, which process changes an internal extension into a fully qualified external PSTN number before matching to a dial peer? C. Number expansion

Q93 The acronym CNG was used to refer to two different concepts in this chapter. One was the calling tone used when sending a fax, used to identify a call as a fax call. What is the other purpose of CNG (that is, not dealing with fax calls)? B. It provides white noise to make the call sound connected. Q94 Hotspot The SJ local zone contains a gatekeeper that controls two gateways, SJ1 and SJ2. Both gateways provide access to area code 408. For the following command strings, which tow will be entered into the gatekeeper to give the SJ2 gateway priority over the SJ1 gateway? (Choose two.) A. Zone prefix SJ 408 gw-priority 10SJ2 D. Zone prefix SJ 408 gw-priority 6SJ1 Answer: A,D Q95 Which of the following media resources require DSPs (that is, the resource cannot be performed by Cisco Unified Communications Manager)? C. Transcoding Q96 If a client picked up a customer service handset and was automatically connected to a customer service representative without dialing any digits, what kind of call would it be? D. PLAR call Q97 Which configuration parameter would you change to set the dial tone, busy tone, and ringback tone on an FXS port? A. Cptone Q98 What is the default (and most commonly used) method of access signaling used on E&M voice ports? B. Wink-start Q99 Which situation most likely requires changes to the FXS port default settings? B. The caller and the called party are in different countries. Q100 Hotspot What is the E.164 standard? D. International public telecommunications numbering plan

Q101 Which two conditions can be checked by using the show voice port port command for an FXS port? (Choose 2.) A. Whether the port is using ground-start or loop-start signaling B. The ring frequency configured for the port Q102 When an end-to-end call is established across a VoIP network, how many inbound call legs are associated with the call? B. Two Q103 A POTS dial peer performs which of the following two functions? (Choose 2.) A. Provides a phone number for the edge network or device D. Identifies the specific voice port that connects the edge network or device Q104 When configuring a VoIP dial peer, which command is used to specify the address of the terminating router or gateway? C. Session target Q105 A dial peer, also known as an addressable call endpoint, is a device that can originate or receive a call in a telephone network. Which dial-peer command can set the parameters that search through a series of dial peers for a destination that is not in use? A. Hunt Q106 What happens if there is no matching dial peer for an outbound call? D. The call is dropped. Q107 The H.323 message is displayed as follows: On the basis of this information, What is the gateway doing with the gatekeeper? C. Lightweight registration Q108 Which dial-peer configuration command attempts to match the calling number (that is, the ANI string)? C. Answer-address Q109 T1 CAS uses ___________________ signaling. C. Robbed-bit

Q110 What are three types of digital voice ports? (Choose 3.) A. ISDN C. E1 D. T1 Q111 The output of message is shown below: Based on this information, which message ID can be used to track this call from the requesting endpoint?

A. 8204 Q112 The _____________ command is used to configure a T1 controller for CAS. C. ds0-group Q113 DRAG DROP

Q114 ISDN uses ______ for Layer 2 signaling, which is defined in _______. B. LAPD, Q.921 Q115 The two types of ISDN interfaces are ______ and ______. B. PRI, BRI Q116 When you use the show gatekeeper endpoints command on the gatekeeper, a Cisco UBE router will be displayed as a(n) __________ type. C. H323-GW

Q117 Which two are QSIG supplemental services or additional network features? (Choose 2.) A. Path replacement B. Do not disturb Q118 Which two tasks are performed by the RAS signaling function of H.225.0? (Choose 2.) A. Performs bandwidth changes C. Performs disengage procedures between endpoints and a gatekeeper Q119 What are the functions of an H.323 gateway? D. Performs translation between audio, video, and data formats Answer: D Q120 The exhibit below shows partial VoIP network topology of the company :

Based on the exhibit presented, which protocol provides the necessary sequence numbers so that voice packets originating at R1 are played in the correct order at R5? B. RTP

Q121 Which RAS message does a gateway use to request admission to a network and to also request phone number to IP address resolution? A. ARQ Q122 DRAG DROP Click and drag the type of call on the above to the type of voice port it applies to on the below.

Q123 Use the __________________ command to designate a source IP address for a voice gateway. C. h323-gateway voip bind srcaddr Q124 On the basis of the exhibit.

When extension 201-555-1000 dials 404-555-1200, how are the digits manipulated in R1 so that they are presented correctly at R2? A. The outbound VoIP dial peer is matched and all digits are sent. Q125 Which call control model does MGCP use? B. Centralized Q126 How do you configure a router to use MGCP on a digital port? D. Add the service mgcp parameter to the ds0-group controller subcommand.

Q127 Which command displays a count of successful and unsuccessful control commands? C. debug mgcp statistics Q128 Identify four SIP servers. (Choose 4.) A. Registrar C. Redirect D. Location E. Proxy Q129 What is one way to implement call coverage? B. Pilot numbers Q130 Examine the following items carefully. The D channel in ISDN is an example of which two signaling methods? (Choose two.) B. out-of-band E. CCS Which of the following are characteristics of a scalable dial plan? (Choose 3.) A. Fault tolerance C. Hierarchical numbering plan D. Dial-plan logic distribution Q132 Which dial plan characteristic shows the most obvious improvement by ropping a number translation step? B. Post-dial delay Q133 Which of the following best describes a numbering plan? B. It defines a telephone number of a voice endpoint or application. Q134 Partial CompanyVoIP network topology and the configuration information of R1 and R2 are displayed as follows:

On the basis of the exhibit. Users are not able to complete a call from 678-555-1212 to 770-555- 1111. Which diagnosis is correct for this problem? A. Incorrect destination-pattern in router R1 Q135 Which of the challenges associated with integration requires translations? D. Necessity of prefixes or area codes Answer: D Q136 Hotspot For the following items, which is the most common E&M type used outside North America? E. Type V Q137 Which worldwide prefix scheme was developed by the ITU to standardize numbering plans? A. E.164 Q138 What is the process of formatting a number to a predefined pattern called? D. Number normalization

Q139 Which of the following best describes the ALI? C. A database that associates a telephone number to a specific location description Q140 By default, _________ dial peers strip any outbound digits that explicitly match their destination pattern. C. POTS Q141 Which item correctly describes the relationships between the feature and the category it belongs?

A. Gateway -1 and 2 CUBE-3 and 4 Q142 Which digit manipulation option is applied globally? A. Number expansion Q143 As a Cisco engineer, you work for the Company. When setting up a VoIP call, what is the first thing a gateway router tries to match to a dialed number? D. Destination pattern Q144 Select a rule that would search and replace a ten-digit number with the internal 2XXX extension. D. rule 1 /^4085552/ /2/ Q145 In Cisco IOS, which of the following is associated to each dial peer? A. Call leg

Q146 Hotspot A new business in Great Britain needs to have a PSTN connection that will handle a maximum of 30 inbound and outbound calls at any given time. The customer only has one slot available on the designated PSTN router. Which digital line type will you recommend? C. ISDN El PRl Q147 One best practice is to create a default POTS dial peer with the direct-inward-dial attribute using the __ wildcard as the destination pattern. D. . Q148 Partial CompanyVoIP network topology and the configuration information on Gateway-A are displayed below:

D. D Q149 ___________________ is an easy way to overcome the problem of overlapping directory numbers. A. Site-code dialing Q150 Instead of only routing intersite calls over an IP WAN link, __________ also uses the IP WAN link for PSTN calls. C. TEHO

Q151 Which of the following is defined to include a number of members that were previously defined? D. corlist Q152 In Unified CME, corlists are directly assigned to what? B. ephone-dn Q153 Which command is used to display corlists and members? B. show dial-peer cor Q154 Which of the following RAS messages can be sent using either unicast or multicast? C. GRQ Q155 Identify four mandatory features of an H.323 gatekeeper. (Choose 4.) B. Admission control C. Address resolution D. Bandwidth control E. Zone management Q156 What H.323 gatekeeper feature allows calls to be routed to a specific zone, regardless of the zone prefix in the address? A. Technology prefix with hop-off Q157 Identify two methods of LRQ forwarding. (Choose 2.) B. LRQ blast D. LRQ sequential Answer: B,D Q158 Given the following configuration, what IP address will GK1 use to send and receive RAS messages?

B. 172.16.0.2 Q159 What VoIP dial-peer configuration mode command can be used to specify a technology prefix of 2#, indicating that when the dial peer is used as an outgoing dial peer, a 2# will be prepended to the dial string sent to the gatekeeper? D. tech-prefix 2# Q160 An H.323 gatekeeper maintains a separate gateway list, ordered by priority, for each of its zone prefixes. If a gateway does not have an assigned priority for a zone prefix, what priority does it use as a default? B. 5 Q161 How much bandwidth does an H.323 gatekeeper assume will be required by a G.729 call? B. 16 kbps Q162 What parameter of the bandwidth command, used in gatekeeper configuration mode, specifies the maximum amount of bandwidth that can be allocated in a zone? B. Total Q163 Where should RAI be configured? B. On a gateway

Q164 Cisco UBE features include __________________, ________________, codec filtering, and video interworking. (Choose 2.) B. Address hiding C. Protocol interworking Q165 Protocol interworking interconnects VoIP networks, using the same or different __________ protocols. A. Signaling Q166 Media streams can _______________ or ____________ a Cisco UBE. D. flow-through, flow-around Q167 If codec filtering is not required, a Cisco UBE router also supports ____________ codec negotiations. D. Transparent Q168 When deploying Cisco UBE and RSVP-based CAC, ensure the flows that should utilize RSVP are configured for media _______________. C. flow-through Q169 When interworking H.323 and SIP, the configuration applied with the allowconnections command is _________________. C. Unidirectional Q170 Choose the correct command to enable H.323 to H.323 interworking. D. Allow-connections h323 to h323 Q171 Use the ________________ command to configure codec pass-through. B. codec transparent Q172 A gatekeeper should be configured to route calls between local zones via a Cisco UBE gateway. How can this be achieved? B. The gatekeeper should route calls via a local zone that contains a Cisco UBE gateway.

Q173 DRAG DROP Assume a SIP voice network. Drag each characteristic to the type of SIP call setup the characteristics best describes.

Q174 The following are the original dial peer configurations for routers R1 and R2 : R1 : dial-peer voice 20 voip destination-pattern 408....... session target ipv4: 192.168.2.254 ! R2 dial-peer voice 21 ports destination-pattern 4085554321 port 1/0/1 !

Which phones can call to the other? A. Only Phone A can call Phone B. Q175 How are inbound and outbound call legs handled from the perspective of the source router? D. The inbound call leg is matched first. Then, once the destination is known, an outbound call leg is established. Q176 You are the Voice technician at Certkiller.com. The certways network uses VoIP. Your newly appointed certways trainee wants to know what the modes of the playout delay buffer are. What will your reply be? C. Dynamic and Static. Q177 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know what factors affects audio quality. What will your reply be? A. Echo and delay variation Q178 When a call is placed, it is routed toward the destination. Which call legs are created on that router for the call? D. Inbound and outbound call legs Q179 Which of the following best describes the main difference between G.729 and G.729a? A. G.729 has higher complexity.

Q180 Which of the following parameter is checked first when matching inbound dial peers? D. Called number (DNIS) with incoming called-number Q181 What is used to translate called (DNIS) and calling automatic number identification (ANI) numbers before routing the call? D. Translation Pattern Q182 What could happen if the playout delay buffer size is configured too large? B. The overall delay on the connection may rise to unacceptable levels. Q183 You are the network engineer at Certkiller.com. certways has its headquarters in New York and a branch office in Delaware. In the branch office, one VoIP dial-peer has been configured to point to headquarters over a low speed serial link. You want to limit the maximum number of concurrent calls to 3. Which command would you use? C. dial-peer voice 1000 voip max-conn 3 Q184 What happens if no incoming dial peer matches a router or gateway? B. The incoming call leg matches the default dial peer. Q185 If a PC connected to an IP Phone is having trouble obtaining an IP address, which setting on the phone might help resolve the problem? D. Forwarding Delay Q186 You have all ten digits being sent to your CM from the PSTN (via a gateway). If you have four digit extensions, how do you make sure that the call gets routed? C. configure the GW to only collect four digits Q187 Which of the following statements is correct when discussing how the Cisco CallManager works with IP Phone registration? D. On initial configuration, an IP phone is assigned a directory number (DN)k, which it maintains wherever it resides. Q188 Which statement is true about VoIP packet loss? D. Codec algorithms can overcome minimal packet loss.

Q189 Which is the best way to achieve a scalable dial plan? A. Group numbers for a particular area. Q190 Which channel carries Q.931 signals in a T1 connection from a PBX to a Cisco gateway? C. 24 Q191 What is true about H.323 endpoint call setup? C. Endpoints can either do their own setup or be assisted by a gatekeeper. Q192 What is used in the Cisco implementation of T.37? C. Special gateways configured as on-ramps and off ramps Q193 What is the optimal end-to-end delay that should be achieved in a VoIP network? C. 150 ms Q194 What is the E.164 numbering plan? D. The ITU worldwide number plan. Q195 What type of signalling is used for a circuit transmitted within the same channel as the voice? D. Channel Associated Signalling Q196 You are the Voice technician at Certkiller.com. The certways network uses VoIP. Your newly ppointed certways trainee wants to know what the disadvantage of using VoIP rather than VoFR or VoATM are. What will your reply be? C. Data units can arrive out of sequence. Q197 You have a pair of voice enabled routers that have the capability of supporting only medium complexity codecs. You need to conserve bandwidth on WAN links without major impact to call quality. Which codecs will satisfy these requirements? (Choose two) B. G.729A D. G.729.AB

Q198 What is the most important piece to implement if you are considering a VoIP infrastructure? A. QoS Q199 What explains how the Cisco IP SoftPhone uses the Cisco CallManager? B. Cisco IP SoftPhone uses the services of the Cisco CallManager to route calls through an IP telephony network. Q200 Which are three required steps in digitizing voice? (Choose three) B. Quantizing the amplitude. C. Sampling the soundwave. D. Encoding the results in binary form. Q201 Your manager asks you for a worksheet defining items that need to be addressed forthe future VOIP and IP telephone rollout. What items do you put on the worksheet that need to be addresses for the wiring closets? (Choose all that apply.) A. Switches with Inline Power C. UPS systems and Backup power D. Cooling Requirements (a heat profile) Q202 From the list below, what allows a Cisco IP phone to detect the absence of audio and therefore does not transmit packets over the network? C. Voice Activation Detection Q203 When analyzing the WAN for IP Telephone deployment, you need to collect information from the WAN and LAN devices. You need to determine current Bandwidth usage before rolling out a solution. From the analysis you are performing, there are categories you can collect information from. Select two from the list below. A. Device information, which includes router models, memory, CPU, interface card modules versions and software versions C. The existing WAN topology, which includes logical design information and bandwidth subscription rates Q204 Which preference key word assigns top precedence to a dial peer in a hunt-group? A. 0 Q205 What are two basic parameters needed to setup a dial peer connected to the PSTN?(Choose two) A. Voice port D. Destination pattern

Q206 Which field can be manually entered into the database when using the BAT tool, but not when using the TAPS tool? C. Device MAC address Q207 Name two factors that will need to be considered and may provide a hurdle to move forward with your VOIP rollout and IP telephony implementation: A. Money Flow issues. C. Technical Constraints Q208 You're a CCNP certified employee at Deutsche Telekom. You are working with the abc .com Telephone Company, in Rammstein Germany, to assist them to set up a simple configuration to demonstrate an FXS-to-PSTN connection across an IP network. The Ethernet interfaces and routing protocols are already configured on both routers. The R1 router will act as gateway to the PSTN to the PSTN and is correctly configured for this task. You are required to add the voice portion to the R2 router. Configure the pots and VoIP dial peers and insure that the pots telephone on the R2 router can reach the PSTN connected to the R1 router. The analog telephone is connected to voice port 1/0/0. The customer uses the access code 9 to dial out the PSTN. Insure that the R1 and R2 recognize the dialed digits as standard E.164 numbers. The telephone number of the pots telephone connected to the R1 router is 49648455554321. After the configuration is complete you may click on the telephone to check your configuration. If the call is successful, you will get a ringing message and a completed call. If the call is unsuccessful, you will get a busy signal. The R1 router has the following configured ports: Ethernet: 0/0 172.16.1.11 255.255.255.0 To configure the router click on a host icon that is connected to a router by a serial console cable.

Explanation: en config t dial-peervoice 1 pots

destination-pattern 6495551212 port1/0/0 dial-peervoice 2 voip destination-pattern +9T sessiontarget ipv4:172.16.1.11 Answer: Q209 In a distributed call processing model, which three are located at each site? (Choose three.) B. Voice messaging C. Media resources D. Cisco CallManager cluster Q210 What can be used not only to restrict dialing, but also to identify a subset of a subset of a wildcard pattern (when using the @ wildcard in the North American Dialing Plan)? C. A Route Filter Q211 You are the Voice technician at Certkiller.com. Your newly appointed certways trainee wants to know what types of trunks Cisco support with the connection trunk command. What will your reply be? B. FXS to FXS trunks, FXS to FXO trunks, and E M to E M trunks Q212 hostname R1 ! interface serial0/0 ip address 172.16.1.1 255.255.255.248 ! controller t1 framing esp clock source line linecode b8zs ds0-group 1timeslots 1-24 type e m-wink-start ! voice port 1/0:1 ! dial-peer voice 1 voip destination-pattern 404555..... session-target ipv4:172.16.1.6 ! dial-peer voice 2 pots destination-pattern 201555..... port 1/0:1 hostname CK2 ! interface serial0/0 4 ip address 172.16.1.6 255.255.255.248

! controller t1 framing esp clock source line linecode b8zs ds0-group 1timeslots 1-24 type e m-wink-start ! voice port 1/0:1 ! dial-peer voice 1 voip destination-pattern 201555..... session-target ipv4:172.16.1.1 ! dial-peer voice 2 pots destination-pattern 404555..... port 1/0:1

Your customer has forwarded this diagram and configuration. The customer wishes to have a connection between its PBXs, a connection that is created and dropped as required. There is one configuration statement missing from each router. What are the two missing statements? (Choose two) C. Connection tie-line 4045551200 D. Connection tie-line 2015551000 Q213 Choose all functions available to you with the IP SoftPhone. (Choose all that apply.) B. Displays caller name C. Displays the caller address E. Logs calls to the call log F. Displays caller phone number Answer: B,C,E,F

Q214 You are the network engineer at Certkiller.com. You have configured dial peers in a hunt group for a Support team that answers when the number 5952215 is dialled. The Support team consists of one senior agent and three junior agents. You want the senior agent to receive the incoming call first. Which dial peer should you configure to point to the senior agent? D. dial-peer voice 4 pots destination-pattern 5952215 port 1/1/1 preference 0 Q215 With Cisco CallManager Release 3.0, the term "route point" is replaced with which term from the list below? C. Route list Q216 For very low-speed links (those with a link speed of less than 768 K), it is necessary to use techniques that provide link fragmentation and interleaving of packets. This prevents voice traffic from being delayed behind large data frames and hence bounds jitter. What are two techniques that exist for this? C. Multilink PPP (MLP) for serial links D. FRF.12 for Frame Relay Q217 You are the network engineer at Certkiller.com. You have configured real-time call control processing on the certways VoIP network. You want to verify this configuration. What command should you use? C. debug voip ccapi inout Q218 You are the network engineer at Certkiller.com. certways has been using the following dial peer codec command: Codec g729r8 You reconfigure the dial peers with the following command: Codec g729ar8 bytes 10 How will this reconfiguration affect the voice network bandwidth and delay characteristics? (Choose two.) C. Delay will decrease on a per call basis. D. Bandwidth consumption will increase on a per call basis. Q219 What are two characteristics of a distributed call processing model? (Choose two.) B. Sites connected via the IP WAN C. Call processing agent at one site Q220 Cisco is making every effort to ensure that the gateways, applications, and client produced integrate and operate seamlessly with third party products. From the list below, select which protocols are being used to ensure this effort.

D. All choices are correct. Q221 When discussing Route Groups, we know that they control specific devices such as gateways. On which protocols can gateways be based? A. H.323 B. MGCP D. Skinny Gateway Protocol Q222 You are the network engineer at Certkiller.com. Your newly appointed certways trainee wants to know how an endpoint determines the address of the gatekeeper. What will your reply be? (Choose two.) B. The endpoint issues a GRQ. D. The endpoint is preconfigured to recognize the domain name or IP address of its gatekeeper. Q223 You are the Voice engineer at Certkiller.com. certways has an H.323 gatekeeper. Your newly appointed certways trainee wants to know what functions are supported by this gatekeeper. What will your reply be? (Choose four.) A. It provides services to registered endpoints. B. It converts an alias address to an IP address. C. It responds to bandwidth requests and modifications. F. It limits access to network resources based on call bandwidth restrictions. Q224 You are the network engineer at Certkiller.com. The certways network is shown in the following exhibit:

If the show gatekeeper calls command shows a total of five active calls on the gatekeeper, how many call legs would the show call active voice command display on GatewayA? D. 10

Q225 You are the Voice technician at Certkiller.com. Your newly appointed certways trainee wants to know what makes it possible for gatekeepers to communicate with each other. What will your reply be? B. RAS channel Q226 Your newly appointed certways trainee wants to know what protocol negotiates the codec type for B. H.225 Q227 You are the network engineer at Certkiller.com. certways has its offices in London.You are installing a voice gateway. What do you need to verify? (Choose two.) A. The PSTN standards inEngland. B. Encryption capabilities legalities. Q228 You are the network engineer at Certkiller.com. Your newly appointed certways trainee wants to know what a voice gateway is. What will your reply be? B. It is a device that transports voice and restricts data. Q229 What would Receiving an Alarm Indication Signal of Blue indicate on your T1 connection where your voice traffic is going over? D. Blue means there is an alarm occurring on the line upstream from the equipment that is connected to the port Q230 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know when glare occurs. What will your reply be? D. When both ends of a telephone line or trunk are seized by different users. Q231 One voice packet is lost between Phone A and Phone B. What will be the result to the listener?

C. The listener will hear the audio normally. Packet loss concealment will make the loss inaudible. Q232 What will happen when a network link is oversubscribed? B. All voice calls suffer. Q233 Your newly appointed certways trainee wants to know what CAC applies to. What will your reply be? C. Voice traffic Q234 You are the network engineer at Certkiller.com. certways has its headquarters in New York and a branch office in New Hamshire. You want to configure a permanent connection between the PBX at headquarters and the PBX at the branch office. The following configuration is used at the New York site: dial-peer voice 20 pots destination-pattern 20 port 1.0:1 dial-peer voice 41 voip destination-pattern 41 session target ipv4:10.2.0.20 The following configuration is used at the New Hamshire site: dial-peervoice 40 pots destination-pattern 41 port 1/0:1 dial-peer voice 20 voip destination-pattern 20 session target ipv4:10.4.1.41 What must be added to the voice port configuration at the New York site? B. Connection trunk 41

Q235 You are the Voice technician at Certkiller.com. Your newly appointed certways trainee wants to know what configuration would define a destination pattern for all of the 1000 and 2000 range of extensions starting with the numbers 555. What will your reply be? C. 555[1-2]... Q236 certways distributes computer components and has warehouses in New York and Chicago. Headquarters is located in Washington, DC. To keep costs low, all inside sales associates are located at headquarters. Your want to provide a direct analog telephone connection to the inside sales teams from the pick-up counters at the warehouses. This connection should not require the inside sales teams to dial any digits. One of the warehouses is having a problem with their sales phone. You receive the following output: altwhse#show voice port 1/0:1 Foreign Exchange Office Type of VoicePort is E M Operation State is DORMANT Administrative State is UP The Last Interface Down Failure Cause is Administrative Shutdown Description is not set Noise Regeneration is enabled Non Linear Processing is enabled Music On Hold Threshold is Set to -38 dBm In Gain is Set to 0 dB Out Attenuation is Set to 0 dB Echo Cancellation is enabled Echo Cancel Coverage is set to 8 ms Connection Mode is plar Connection Number is 2000 Initial Time Out is set to 10 s Interdigit Time Out is set to 10 s Call-Disconnect Time Out is set to 60 s Ringing Time Out is set to 180 s Region Tone is set for US What is the cause of the problem? A. VoicePort type is incorrect. Q237 You are the network engineer at Certkiller.com. Your newly appointed certways trainee wants to know which features render VAD ineffective. What will your reply be? (Choose two.) A. Fax D. Music on hold Q238 How do a-law and mu-law reduce quantization error? A. Use smaller step functions at lower amplitudes. Q239 What is a logical grouping of directory numbers (DN) and route patterns with similar reachability characteristics when working with IP Telephony? D. A Partition

Q240 What unlocks the 7960 configuration menu? B. **# Q241 Name two standards that are being adopted from by the telecommunicates industry that are used to communicate between applications such as the Cisco CallManager providing IP PBX functionality and unified products such as the GateServer products acquired through the acquisition of AmtevA. (Select two.) A. The Java Telephone Application Programmable Interface (JTAPI) C. The Telephony Application programmable Interface (TAPI) Q242 Which network protocols does an IP Phone use to communicate? C. TCP/IP for skinny signalling and UDP/IP for RTP voice streams. Q243 There are six major steps for WAN deployment when preparing IP telephony. From the list below, please select which of the following are valid pre deployment choices.(Choose all that apply.) B. Determining Voice Bandwidht Requirements C. Assessing Results E. Analyzing Upgrade Requirements F. Collecting Information on the Current WAN Environment Q244 Before voice and video can be placed on a network, it is necessary to ensure that adequate bandwidth exists for all required applications. To begin, the minimum bandwidth requirements for each major application (for example, the voice media streams, video streams, voice control protocols, and all data traffic) should be summed. This sum represents the minimum bandwidth requirement for any given link, and it should consume no more than what percentage of the total bandwidth available on that link? D. 75% Q245 You need to prefix any outbound number dialled by a user with a 9. Where can you do this? (Choose two.) B. On a Route Pattern C. On a Translation Pattern Q246 Your Manager asks you as the Lead Network Designer to give a status on the VOIP integration project. Your Manager specifically asks what you need to replace the PBX. From the list below, what are you going to need to replace the PBX to roll out the VOIP solution? (Choose all that apply.) A. TCP/IP B. Cisco CallManager D. IP Telephones F. Cat 4000's

Q247 What is the major advantage of designing and placing VoIP and Internet telephony in a clients organization? C. It avoids the tolls charged by ordinary telephone service Q248 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know what function T-CCS performs. What will your reply be? D. It allows a PBX to pass proprietary signalling to another PBX across the IP network. Q249 You are the network engineer at Certkiller.com. You to connect a Cisco voice gateway to a PBX or the PSTN via ISDN (PRI, QSIG, BRI). What are two attributes of the PBX/PSTN switch that must be known to understand which features to configure on the voice gateway to connect successfully to it? (Choose two) C. Which PRI/BRI switch-type is supported by the PBX/PSTN switch. D. Whether network or user side is supported by the PBX/PSTN switch. Q250 You are working with a potential customer that would like to integrate its existing PBX telephone system into its IP network. The accompanying figure shows that the customer has two offices that need to be connected to the IP network so that the customer can exchange telephone calls without using the PSTN. Both PBXs are currently connected to T1 ISDN circuits. Which signaling type will allow you to support your customer?

A. QSIG Q251 Which statement is an example of in-band signaling? D. Robs bits from some frames to provide signaling states. Q252 You are the network technician at Certkiller.com. VoIP is implemented on the certways network. Your newly appointed certways trainee wants to know what this implementation uses to carry the payload across the network. What will your reply be? D. RTP inside UDP

Q253 In a VoIP environment when speech samples are framed every 20 ms. A payload of 20 bytes is generated. Assuming a total packet length of 60 bytes, what is the length of the packet header if cRTP is deploued without redundancy checks? B. 2 bytes Q254 What does the PBX use to determine the destination of a call? C. An analysis of the dialled digits Q255 Which of the following is the worst-case compression delay for CD-ACELP? D. 20 ms Q256 What type of connection is considered a call leg? C. A logical connection Q257 To which layer of the OSI model does Q.921 signaling equates to in ISDN? D. Data-Link Q258 certways has a PBX at corporate HQ and one at a branch office. You to replace the PBX-to-PXB TDM trunk connection with IP connectivity. The PBXs use proprietary signalling method. The following is a partial configuration of the HQ router that connect to the PBX: controller t1 1/0 ds0-group 1 timeslots 1-24 type ext-sig dial-peer voice 1 voip destination-pattern 1001 session target ipv4:10.10.0.1 dial-peer voice 2 pots destination-pattern 2001 port 1/0:1 connection trunk 1001 Which command is missing from the above configuration? D. Codec clear-channel in the voip dial peer configuration Q259 You are the network engineer at Certkiller.com. The certways ISDN network has two PBX systems from different manufactures. Which protocol allows functionality between these two PBX systems? A. QSIG Q260 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know which application conveys fax using T.37 fax relay. What will your reply be?

D. SMTP Q261 certways sells managed IP Phone service to businesses in multi-tenant units. certways has POPs in many cities, so all of their dial peer patterns are based on 10 digit numbers. Users dial 9 for local calls, followed by the 7 digital local number. The following dial peer has been configured in a New York POP: dial-peer voice 595 pots destination-pattern 595 port 1/0:24 A user dials a local number, 9-638-4422. What command must be configured in the gateway to allow the call to complete? D. num-exp 9.......595....... Q262 IP Telephony uses which protocol that does not accommodate re-transmission? C. RTP (real time protocol) Q263 When placing a call from an IP Phone to another IP Phone, how is ringback generated? B. CallManager sends a command to the originating IP Phone to play ringback locally. Q264 What is the most probable cause of jitter? A. Variable delay Q265 When an IP phone says "Configuration CM List", what is it doing? A. Downloading a .cnf.xml file via TFTP Q266 Name two sensitivities that Voice traffic has that data traffic is not necessarily affected by. C. Delay D. Jitter Q267 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know what does the connection tie-line command emulates. What will your reply be? A. A temporary connection to a PBX. Q268 Your customer would like to investigate converging voice and data on their existing T1 Frame Relay WAN link between R1 and R2. The following applications are consuming no more bandwidth than what is in the list on this segment of the network. T1 link 1536 Kbps e-mail 75 Kbps Internet 200 Kbps Oracle 500 Kbps FTP 250 Kbps Total 1025 Kbps The customer has allocated 25% of the WAN link for routing updated and other overhead. Assuming 6 bytes overhead for Frame Relay, no cRTP and using the G.729 codec, how many calls could be placed on this link?

C. 4 calls Q269 You have set up Call Admission Control for a customer between their headquarters and manufacturing facility over their Frame Relay WAN. You are using the G.726r16 codec with a 40 byte sample, CRTP without CRC, and 90 kbps configured as the maximum bandwidth for CAC to use. What will happen when 7 calls try to call the remote office? B. Only 4 calls will go through and the remainder will get a reorder tone. Q270 You have designed a complex dial plan using digit manipulation. Given the following snippet of your configuration file, what action would you expect to result when a call beginning with the digits "5501" is received? dial-peer voice 1 pots destination-pattern 5501... ... prefix port 1/0/0 B. A ten digit number beginning with 5501 will be forwarded. Q271 You are the network technician at Certkiller.com. VoIP is implemented on the certways network Your newly appointed certways trainee wants to know what is used to carry VoIP voice packets on this network. What will your reply be? C. RTP/UDP Q272 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know what TCP's reliable deliver service provides. What will your reply be? B. Flow control, sequenced delivery, automatic error recovery, and transmission window management

Q273 You are the Voice technician at certways , Inc. You want to deploy an IP telephony solution for the company. The certways network is currently a traditional LAN/WAN based on Frame Relay. Your CEO has read about the issues of converging both data and voice traffic onto a single network. She is concerned about the quality of their calls that need to cross the WAN in particularly. What would you need to implement to ensure QoS for VoIP over Frame Relay? C. Fragmentation, traffic shaping, priority queuing, Low Latency Queuing, and link efficiency with cRTP. Q274 You are the network engineer at Certkiller.com. Your newly appointed certways trainee wants to know which functions use UDP as their transport mechanism. What will your reply be? (Choose two) A. RTP B. RAS control function Q275 What does gateway require to function as a translating gateway? B. The ability to recognize the call control procedures of both connecting endpoints. Q276 You are the Voice engineer at Certkiller.com. Your newly appointed certways trainee wants to know what compressed RTP does. What will your reply be? B. It significantly reduce total bandwidth Q277 You are the network engineer at Certkiller.com. You are implementing Frame Relay traffic shaping on the certways network. Your newly appointed certways trainee wants to know why Frame Relay traffic shaping is important. What will your reply be? D. It ensures that excess traffic above the CIR on the link is not dropped, but is buffered and sent when there is capacity on the link. Q278 You are the network engineer at Certkiller.com. You want to verify the registration of the gateway with the call agent. Which show command should you use? A. show mgcp Q279 What identifies an MGCP endpoint? D. A two part identifier that consists of the local name of the user and the domain name of the gateway. Q280 What is the function of a SIP location server? A. Resolves active endpoint addresses Q281 Given the SIP network shown in the diagram identify which three actions are initiated by the UAC (user

agent client)? (Choose three)

A. Initiates a SIP requests. B. Originated the BYE method to indicate call termination. C. Originates the ACK method to indicate that it has receives a response to its invitation. Q282 Which characteristic is true about SIP protocol messages? B. Text-based Q283 Upon which protocol model is the SIP protocol based? D. HTPP/WWW Q284 Which type of signaling is DTMF? D. Address Q285 With regard to SIP and SDP, which of the following statements is true? C. SIP is similar to H.225 and SDP is similar to H.245 Q286 You are the network engineer at Certkiller.com. You are configuring a connection to a SIP proxy server. Which command would you use to specify the IP address of the server? A. sip-ua sip-server ipv4:1.2.3.4

Q287 Which of the following call control models are based on decentralized call control? (Choose two.) A. SIP C. H.323 Q288 How is CAS different on E1 and T1? B. E1 CAS signaling is out-of-band while T1 is in-band. Q289 In the connection between a Cisco router and an E M port on a PBX, which side is generally the Cisco side? D. Signaling unit Q290 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know which signal types are used by E M. What will your reply be? C. Wink start, delay start, and immediate start Q291 In an effort to consume less bandwidth across the WAN, the decision was made at certways to change the voice packet size. They changed from two voice frames per packet to one voice frame per packet. What effect did this have on certways 's voice traffic?

B. Per call bandwidth consumption increased and end-to-end delay decreased. Q292 You have been forwarded some questions by a prospective VoIP customer who would like to know the Cisco default sample size for the G.729 codec. What is it? D. 10 ms

Q293 You are the network engineer at Certkiller.com. certways has its headquarters in New York and branch offices in Delaware, Detroit and Denver. certways has a traditional time-division multiplexing (TDM) based network with automated call distribution (ACD) private branch exchanges (PBX) and desktop systems. You want to add an IP telephony solution to the certways network. What will enable server and agent-level IP telephony to coexist with the existing network? A. IPCC Q294 What component can be used to compensate for jitter? D. Playout delay buffer Q295 You are the network engineer at Certkiller.com. certways has an IP network. Your newly appointed certways trainee wants to know which issues would adversely affect voice quality on the certways network. What will your reply be? A. Jitter, delay, and packet loss Q296 In accordance with the G.114 standard, which of the following delay ranges is acceptable? A. 0 - 150 ms Q297 Which application allows you to communicate to multiple remote offices simultaneously? D. Hoot and Holler Q298 Which of the following is the correct formula for encoding PCM? D. 4000 Hz frequency sampled at two times the frequency and each sample is represented in 8 bits = 64 kbps Q299 Your newly appointed certways trainee wants to know what CAC applies to. What will your reply be? C. Voice traffic Q300 In a campus network, which of the following are categories for QoS? D. Separation of queues, queue scheduling, and marking control and management traffic Q301 Which tool can be applied to the Campus Switches to help eliminate traffic congestion? D. QoS

Q302 You are the Lead Network Engineer for your company. Your manager asks what needs to be upgraded on the Network to begin Preparing for the VOIP upgrade. Your Network Campus Consists of One Core Rack of Cat 4000 Switches and 4 closets with BayStack and Synoptics hubs. IP phones will be placed on every desk of the organization and the entire Campus is wired with Cat 5e. From the list below, what needs to be done? (Choose one.) D. Upgrade all the Hubbed gear with Cat 4000 series Switches Q303 Which of the following QoS measures affect the outbound queue when implemented? (Choose three.) A. LLQ C. WFQ D. CBWFQ Answer: A,C,D Q304 You are using class-based weighted fair queuing (CBWFQ) to manage queues in your network Voice quality has been inconsistent over lower speed WAN links and users have been complaining. You have decided to configure low latency queuing (LLQ) on the lower speed links to help improve voice quality in the network. Which three of the following steps should you take to implement LLQ in the network? (Choose three) A. Ensure voice traffic is marked with a value EF in the DSCP. B. Assign voice traffic control protocol traffic to its own queue with a DSCP value of AF31. C. Assign all voice traffic to the priority queue in LLQ. Q305 You are the network engineer at Certkiller.com. certways is using LLQ on the serial interface 3/3 on the certways router. You want to verify the status if LLQ on the interface. Which command would you use? D. show policy-map interface serial 3/3 Q306 On what is traffic engineering for voice based? C. Grade of service. Q307 Given the network shown in the exhibit, select the recommended QoS configuration for the slow speed WAN segment connecting the campus and branch office.

A. LLQ Voice traffic marked as EF Voice control traffic marked as AF31 Implement Admission Control Q308 Considering only the delays actually shown in the exhibit, how will the proposed network meet the A. 114 recommendation for one-way delay?

Answer: A Q309 Examine the following PBX system parameters: The calling side seizes the line by going off-hook on its E-lead and sends information as DTMF digits. The voice path is 4-wires, and the voice enabled router is in another building from the PBX. Select the correct set of commands to allow communication between a voice enabled router and a PBX. A. voice port 1/0/0 signal immediate-start

operation 4-wire type 2 Q310 Which device is used to allow an H.323 stream to transit a firewall? C. Proxy Q311 Refer to the graphic for IP addresses and telephone numbers. You are working with a customer that is opening a small sales office in R2. You would like to be able to have the user in R2 be able to dial into the PBX in R1 over the IP WAN. The R1 PBX uses loop start, a two-wire operation, and DTMF dialing. Please choose the correct FXO port configuration for R1.

A. voice port 1/0/0 signal loop-start operation 2-wire dial-type dtmf Q312 Which problem does a-law and mu-law address? C. Quantization produces higher signal-to-noise ratios at smaller amplitudes Q313 Which will provide your IP Phones with an IP Address? B. Any DHCP server Q314 If the Cisco SIP server shown in the exhibit is used only for SIP redirect call setup, which two types of operating environments can be used for the server? (Choose two.)

A. Linux (Redhat) C. Solaris Q315 A network has the following characteristics: * the use of the G.711 codec with codec speed of 64kbps * a 160-byte sample size * the use of Frame Relay without compressed Real-Time Transport Protocol (CRTP) * FRF.12 with 6 bytes of overhead What minimum WAN bandwidth would be required to support three simultaneous VoIP calls? A. 247200 bps Q316 What is the purpose of RTCP? A. Provides monitoring and control for RTP flows Q317 What is the approximate frequency range of human speech? C. 200 Hz to 9000 Hz Q318 Exhibit:

The illustration above shows the timing and order of arrival of voice packets at the end device. Each voice packet contains 20 ms of voice datA. Assuming a play-out buffer of 20 ms, what will happen to voice packet number 3?

C. It will be dropped and treated as a lost packet. Q319 In T1 CAS, where are the signaling states and control features carried for Super Frame robbedbit signaling? A. 6th and 12th frame Q320 What is the process of assigning audio amplitude to a unique digital code word? D. Quantization Q321 Refer to the exhibit. Lighthorse Equine Management would like to investigate converging voice and data on their existing T1 Frame Relay WAN link between R1 and R2. Currently the following lists ofapplications are consuming no more bandwidth than what is listed on this segment of the network. T1 link 1536 kbps e-mail 75 kbps internet 200 kbps Oracle 500 kbps FTP 250 kbps Total 1025 kbps The customer has allocated 25% of the WAN link for routing updates and other overhead. They would like to increase the number of samples encapsulated in each PDU to 40 ms. You have calculated 6 bytes of overhead for Frame Relay, no cRTP,and the use of the G.711 codec. How many simultaneous calls could be placed on this link?

B. 1 call Q322 Which organization approved the H.323 standard? D. ITU Q323 When they are booted, the Cisco Access Digital Trunk Gateway DT-24+, the Cisco Access Digital Trunk Gateway DE-30+, and the Catalyst 6000 digital gateway are provisioned with Cisco CallManager location information. When these gateways initialize, a list of Cisco CallManager's, referred to as a ______________ is downloaded to the gateways.

D. Cisco CallManager redundancy group Q324 You are the VoIP engineer at Certkiller.com. A certways user complains that she gets a busy tone instead of a dial tone when she tries to call another user. You want to troubleshoot this problem. What command should you use? A. show voice dsp Q325 Which device listed below has an intelligent power management system that grants or denies power to various system components based on power availability in the system for use with IP telephony? D. Catalyst 6000 switch Q326 What Cisco Catalyst Switch command produces the following inline power output? Defalut Inline Power allocation per port: 10.00 Watts (0.23 Amps @42V) Port InlinePowered PowerAllocated Admin Oper Detected mWatt mA @42V ---- ---- ---- ---- ---- 7/1 auto off no 0 0 7/2 auto on yes 5040 120 7/3 auto faulty yes 12600 300 7/4 auto deny yes 0 0 7/5 off off no 0 0 C. show port inlinepower <mod>|<mod/port> Q327 Recently, the group of the certways network designers have been deploying a new network. The customer needs to configure a CAS E M circuit that will support inbound and outbound DNIS and inbound ANI. Which configuration will accomplish this task? C. ds0-group 0 timeslots 1-24 type e m-fgd Q328 What are two constraints that you may encounter when trying to design a IP Telephone infrastructure? A. Upper level management acceptance B. Budgetary Constraints Q329 What is the biggest issue affecting voice transport when you implement IPSec VPNs in a converged network? C. Throughput considerations. Q330 What factors must be considered in the overall design when implementing an IPSec VPN for transport of voice? D. Port numbers and added overhead.

Q331 What will be the outcome of an incoming VoIP call arriving at CK2 from CK1, given the following router configurations? CK1 Configuration dial-peer voice 1 pots destination-pattern 1111 port 1/0/0 CK2 Configuration dial-peer voice 1 pots destination-pattern 2222 port 1/0/0 ! dial-peer voice 2 voip destination-pattern 1111 session-target ipv4:172.16.1.1 B. The call setup will fail. Q332 Use the exhibit to answer the following questions.

When a call is placed from extension 1001 to 555-2212, which outbound dial peer is matched? D. dial-peer voice 3 voip destination-pattern .T Q333 You are the network engineer at Certkiller.com. certways has its headquarters in New York and branch offices in Delaware, Detroit and Denver. You have deployed VoIP over the certways WAN. certways user at headquarters complain that early in the day, the quality of calls between headquarters and the branch offices is very good, but as the day progresses and more calls are placed to the branch offices, the quality degrades. The certways network is using RSVP. The WAN bandwidth to the branch offices allows 4 calls to the Delaware office, 6 calls to the Detroit office, and 8 calls to the Denver office. You want to verify the configuration of Call Admission Control on the headquarters router. What command should you use? C. show call rsvp-sync conf Q334 On the MOS scale, what does a 5 represent? D. Excellent Q335 certways has its headquarters in New York and branch offices in Delaware, Detroit and Denver.Each office has an analog phone at each location. These phones are connected to an FXS port on the on-site router. The Finance department at the Denver office is unable to make any phone class from these analog phones. You receive the following output: 2611#s voice port 1/0/0 Foreign Exchange Station 1/0/0 Slot is 1, Sub-unit is 0, Port is 0 Type of VoicePort is FXS Operation State is DORMANT Administrative State is UP No Interface Down Failure Description is not set Noise Regeneration is enabled Non Linear Processing is enabled Non Linear Mute is disabled Non Linear Threshold is -21 dB Music On Hold Threshold is Set to 38 dBm In Gain is Set to 0 dB Out Attention is Set to 3 dB Echo Cancellation is enabled Echo Cancellation NLP mute is disabled Echo Cancellation NLP threshold is -21 dB Echo Cancel Coverage is set to default Playout-delay Mode is set to default Playout-delay Nominal is set to 60 ms Playout-delay Maximal is set to 200 ms Playout-delay Minimum mode is set to default, value 40 ms Playout-delay Fax is set to 300 ms Connection Mode is normal Connection Number is not set Initial Time Out is set to 10 s Interdigit Time Out is set to 10 s Call Disconnect Time Out is set to 60 s

Ringing Time Out is set to 180 Wait Release Time Out is set to 30 s Companding Type is u-law Region Tone is set for US Analog Info Follows: Currently processing none Maintenance Mode Set to None (not in mtc mode) Number of signaling protocol errors are 0 Impedance is set to 600r Ohm Station name None, Station number None Voice card specific Info Follows: Signal Type is groundStart Ring Frequency is 25 Hz Hook Status is On Hook Ring Active Status is inactive Ring Ground Status is inactive Tip Ground Status is inactive Digit Duration Status is inactive Digit Duration Timing is set to 100 ms InterDigit Duration Timing is set to 100 ms No disconnect acknowledge Ring Cadence is defined by CPTone Selection Ring Cadance are [20 40] * 100 msec 2611# What is the cause of this problem? C. The signal type is incorrect Q336 Which type of delay is caused by the line speed of the interface? B. Serialization delay Q337 What is the key element in call admission control when interconnecting CallManager sites via the IP WAN? A. Gatekeepers Q338 What does the Digit Discard Instruction of PreDot do to the pattern 9.2148134444? D. Change it to 2148134444 before presenting it to the PSTN Q339 What from the list below combines voice mail, e-mail, and fax into a single application suite where a single application can be used to store and retrieve entire suite of message types? D. Unified messaging

Q340 Which gateway interface connects to the standard station port of a PBX? D. FXO Q341 A 9 digit number must be dialed to reach numbers on the PSTN. What process makes sure that the first 9 digit is not transmitted as part of the called number? C. Digit manipulation Q342 You are the network technician at Certkiller.com. Your newly appointed certways trainee wants to know what the attributes of a scalable dialing plan are. What will your reply be? (Choose four) A. Logic distribution B. Hierarchical design C. Simplicity in provisioning E. reduction in post-dial delay Q343 Which file does the BAT tool use to import users into the CallManager database? A. CSV Q344 When the Directories button on the 7960 phone is pressed, what does the 7960 use to retrieve the Dirctory information? A. XML Q345 Which two tools are most appropriate for configuring 4,000 IP Phones prior to deploying the phones and allow phones to auto register? (Choose two.)? B. BAT D. TAPS Q346 When does an IP Phone receive the ring tones on the phone? A. The phone downloads the wave file on boot. Q347 DRAG DROP Drag each of the dial peers on the left to the phone number that it would match on the right.

Q348 DRAG DROP Drop

Q349 DRAG DROP

Drop nswer:

Q350 Refer to the exhibit. Your customer wants to converge the existing PBX network with the IP network. The three remote offices have various types of PBXs. The customer is using a combination of tie-lines and trunks to connect the PBXs today. Which kind of connection should be implemented to allow calls to be placed from 201-555-1000 to 727-555-1000 so that when the call is completed, network resources are returned for other uses?

C. tie-line

Q351 Refer to the exhibit. A QoS strategy has already been deployed on the LAN. Choose three WAN QoS best practices that should be used over the WAN link. (Choose three.)

B. Implement admission control. C. Mark voice traffic as EF in DSCP. E. Use cRTP to maximize bandwidth utilization. Q352 Refer to the exhibit. Highland Park Property Development is integrating a Cisco Unified Communications Manager Express system with the existing PBX via an E1 QSIG trunk. After the initial configuration, no calls can be placed from IP phones to PBX phones. How can this problem be resolved?

B. Add the command isdn negotiate-bchan to the serial interface.

Q353 Which path selection mechanism lets you choose either the even or odd channels first? B. trunk groups Q354 Which mechanism do you use to implement calling privileges on Cisco Unified Communications Manager Express? D. COR Q355 In which three RAS messages is the technology prefix sent? (Choose three.) A. GRQ B. RRQ E. IRQ Q356 Refer to the exhibit. The Acme Corp. is deploying a CUBE. As a component of protocol interworking between RR Industries and the ITSP, they need to configure at least two dial peers. When the IP WAN is functional, Acme Corp. wants to use 5-digit dialing to RR Industries. Which three dial peers will complete the configuration for Acme Corp.? (Choose three.)

B. dial-peer voice 1000 voip destination-pattern 51... session protocol sipv2 session target ipv4: 192.168.100.100 "Pass Any Exam. Any Time." - www. 149 C. dial-peer voice 91 voip session protocol sipv2 destination-pattern 91T... session target 10.1.100.1 dtmf-relay rtp-nte digit-drop h245-alphanumeric

F. dial-peer voice 50 voip destination-pattern 50... session target ipv4: 172.16.14.6 Answer: B,C,F Q357 Which two are attributes of SCCP? (Choose two.) A. It is Cisco proprietary. C. It is classified as client/server architecture. Q358 Which command specifies the ISDN switch type as PRI? B. isdn switch-type primary-qsig Q359 Which command would you use to display information about the ISDN PRI interface? C. show controllers