1. When Direct Inward Dial is used on a POTS dial peer and an incoming POTS call enters the router: (multiple
answer)
A. The number that is dialing (ANI) automatically becomes the destination-pattern number for the IP destination.
B. The number that is dialed (DNIS) automatically becomes the destination-pattern number for the IP destination.
C. The number that is dialing (ANI) automatically becomes the destination-pattern number for the telephony
destination.
D. The number that is dialed (DNIS) automatically becomes the destination-pattern number for the telephony
destination.
E. The number that is dialed (DNIS) & the number that is dialing (ANI) automatically becomes the
destination-pattern number for the IP & telephony destination.
Answer: BD 
2. A Calling Search Space can be used by CallManager to:
A. Enable the use of an overlapping dial plan
B. Provide access-list-like security
C. Restrict calls to numbers such as 1-900 and International long distance calls
D. Enable the use of E911 services in a Centralized Call Processing model
E. All of the above
Answer: E 
3. What MailStore option does Unity version 2.4.6 support?
A. Exchange 5.5
B. Exchange 2000
C. Domino
D. MS Mail
Answer: A 
4. Click the Exhibit button. 
The user at phone A dials 5551212555.  What Digit string is sent to the PSTN for termination assuming call
routing is working properly through the IP Network? NOTE:  There are 2 exhibits for this question.
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A. 5551212555
B. 4441212555
C. 555911911444
D. 5551444555
E. 5554442555
Answer: B 
5. Consider phone A, assigned to Calling Search Space A.  Calling Search Space A contains the following
partitions (in the order shown), listed with their respective Route Patterns:
Partition_A1, containing Route Pattern 1XXX 
Partition_A2, containing Route Pattern 10XX 
If Phone A dials "1001", what statement is true?
A. Route Pattern 1XXX and 10XX both match, but since 1XXX is listed first, it will be chosen.
B. Route Pattern 1XXX and 10XX both match, but since 10XX is a better match, it will be chosen.
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C. None of the route patterns are an exact match, thus none will match, and the caller will hear re-order tone.
D. Both patterns are equivalent matches, and Call Manager will choose them in a round robin fashion.
Answer: B 
6. Click the Exhibit button.  
There are 2 exhibits for this question. 
If a 7960 IP Phone sends voice media frames towards the access switch, how will these frames be observed at
point A 
NOTE: Assume that a frame sniffer capturing data between the phone and the access switch 
NOTE: Assume the phone is connected into port FastEthernet0/1. 
A. The frame will be tagged with a 802.1Q VLAN ID of 12, and will have an 802.1p cos value of 3.
B. The frame will be tagged with a 802.1Q VLAN ID of 112, and will have an 802.1p cos value of 5.
C. The frame will be tagged with a 802.1Q VLAN ID of 0, and will have an 802.1p cos value of 3.
D. The frame will be un-tagged.
Answer: B 
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7. In a remote office in a CM network, which types of call processing functions do SRST preserve?
A. IP phone to IP Phone calls
B. IP Phone to conference DSP resources
C. CTI applications such as IP SoftPhones
D. IP Phone to Vmail transcoding services
E. IP Phone to GW calls
Answer: AE 
8. Migrating from TDM voice equipment to VoIP does not typically cause migration issues for customers who
expect to be:
A. Fully IP within 12 months
B. Fully IP in 1 to 3 years
C. Deploying in a Green-Field scenario
D. All of the above
Answer: C 
9. The terms "Wink start", "Delay start" and "Immediate start" are applicable to:
A. Analog E&M Signaling
B. T1 CAS E&M signaling
C. E1 CAS E&M Signaling
D. Analog DID Signaling
E. All of the above
Answer: E 
10. Click the Exhibit button. 
In the figure shown, HSRP is used in conjunction with SRST to preserve telephony functionality in a branch office.
Consider a situation where a WAN failure occurs while router A (the primary router) is used. Router A switches to
SRST mode to preserve telephony functions. At this point Router A fails, and HSRP backup Router B becomes the
active router for the branch office, taking over SRST and routing functions for the office. For Router B to be
effective in running SRST for the branch, which types of physical connectivity must be duplicated on Routers A
and B?
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A. WAN
B. CMs
C. LAN
D. PSTN
E. VLANs
Answer: CD 
11. On a T1/E1 Frame Relay circuit, what factor determines the fragmentation size?
A. Minimum CIR
B. Average CIR
C. Burst Count
D. Line speed
E. None of the above
Answer: D 
12. Class of service (CoS) is a:
A. Method of classifying different time periods which have the greatest call volume; assists telephone companies
with designing their network to a certain capacity
B. Portion of the IP header that relates to the service level of the packet
C. General term that describes a level of service necessary for a specific application
D. Method of classifying different traffic flows into a category and applying a particular quality of service (QoS)
for that flow
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Answer: D
13. When troubleshooting an IOS Voice Gateway, what command will produce detailed information (codec, ERL,
tx/rx packets, dial peers, etc) on currently active calls?
A. show voice call active
B. show call active voice
C. show voice port
D. show voice call
Answer: B 
14. In general, fax relay is:
A. More tolerant than voice to packet loss
B. Less tolerant than voice to packet loss
C. As tolerant as voice to packet loss
D. Not subject to packet loss
Answer: B 
15. Cisco SIP Proxy can NOT perform what task?
A. User Agent
B. Proxy Server
C. Redirect Server
D. Registrar Server
Answer: A 
16. What command enables cRTP?
A. ip rtp header-compression
B. ip rtp compress
C. ip crtp
D. ip tcp header-compression
E. ip rtp compress stac
Answer: A 
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17. A gatekeeper is: (multiple answer)
A. An optional component in an H.323 system which provides call control services to the H.323 endpoints
B. A compulsory component in an H.323 system which provides call control services to the H.323 endpoints
C. Logically separate from the endpoints, but its physical implementation may coexist with a terminal, multipoint
conference unit (MCU), gateway, multipoint controller (MP), or other non-H.323 LAN device
D. A compulsory component in an SIP system which provides call control services to the H.323 and SIP endpoints
Answer: AC 
18. In a 128 kbs videoconference call, what combination will give you the best video quality?
A. 261 video and G.711 audio
B. 261 video and G.728 audio
C. 263 video and G.711 audio
D. 263 video and G.728 audio
E. 263 video and G.722 audio. 
19. What SIP header is a SIP Proxy allowed to change?
A. Contact header
B. From header
C. To header
D. Request-URI
Answer: D 
20. During the busy hour, 100 Erlangs may be generated by:
A. 1 call per hour averaging 100 minutes
B. 3000 calls per hour averaging  2 minutes each
C. 2000 calls per hour averaging 3 minutes each
D. B and C
E. None of the above
Answer: D 
21. What interface does SMDI traditionally use?
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A. Serial
B. Parallel
C. Ethernet
D. Firewire
E. USB
Answer: A 
22. In an IP Contact Center deployment, the Erlang-C Traffic Model is used to provision:
A. Agents receiving/handling inbound calls
B. Ports on a voice gateway interfacing to the PSTN
C. Ports on an IP-IVR interfacing with Cisco CallManager
D. Agents initiating/handling outbound calls only
Answer: A 
23. Which pins are used to supply Inline-Power to an IP Phone when using a Cisco Inline-Power Patch-Panel?
A. 4,5
B. 7,8
C. 4,5,7,8
D. 1,2,3,6
E. 1,2
Answer: C 
24. Click the Exhibit button. 
Assume that the gateway is a 6608 blade configured as a gateway and running MGCP; Call Manager runs version
3.1, and that a call is made from phone A to phone X.  All IP streaming is G.711.  Each of the logical links
represented carries certain types of traffic. On which links can q.921 traffic be seen?
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A. 4 only
B. 1, 2, 3, and 4
C. 1 only
D. 2 and 4
E. 2 and 3
Answer: A 
25. When processing a SIP message, regardless of next-hop SIP device, what is the order in which CSPS will
determine how to route the packet?
A. Registry, GKTMP, Static Route, LRQ to H.323 Gatekeeper
B. Static Routes, TRIP, GKTMP, Registry
C. Domain Routes, TRIP, Registry, GKTMP
D. Static Routes, TRIP, Domain Routes, LRQ
Answer: A 
26. Click the Exhibit button. 
A user at Phone A finishes a call.  Later, he notes that "CM Fallback Service Operating" is displayed on Phone A. 
Which are possible explanations for this?
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A. The TCP connection between phone A and call manager has been disrupted.
B. Remote-GW has not received any messages from CallManager within the appropriate timeout period.
C. The FE on Remote-GW is out of service.
D. The FXO port on Remote-GW is out of service.
E. The FE on HQ-GW is out of service.
Answer: AE 
27. Click the Exhibit button. 
In the shown diagram the user at Phone A is hearing persistent echo on calls to the PSTN.  The ERL has been
determined to be 15db. Note the following configuration on the HQ-GW voice T1: 
voice-port 1/0:15 
   echo-cancel coverage 8 
end 
What step should the user initiate to attempt to resolve the echo? 
A. Increase the output gain
B. Increase the input gain
C. Increase the echo tail coverage
D. Decrease the NLP threshold
E. Enable idle code detection
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Answer: C
28. The most important functions of H.245 include: (multiple answer)
A. Coder/ Decoder (CODEC) type negotiation such as G.711, between the calling and called parties
B. Both sides of the call perform IP address exchange and UDP port negotiation.
C. Both sides of the call perform H.225 port negotiation.
D. Both sides of the call perform IP port negotiation.
Answer: AB 
29. Click the Exhibit button. 
In a CM network deployed with MGCP to the branch office GWs, which two design methods should be used to
protect branch office telephony (IP phone to IP Phone, and IP Phone to PSTN) when a WAN failure occurs? 
A. Primary and Secondary CMs
B. SRST
C. CM clustering
D. MGCP Gateway fallback
E. CAC
Answer: BD 
30. The concept of Location is used by CallManager in order to:
A. Define what CODEC to use between devices which may be separated by a WAN link.
B. Define the bandwidth that can be used between devices
C. Define groups of devices based on physical location, for the purpose of assigning Primary and Backup
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CallManager servers
D. Group devices based upon physical location, in order to delegate Administrative Control
Answer: B 
31. Click the Exhibit button. 
In the diagram shown, what section of the voice path represents the Tail Circuit? 
A. Between Point A and Point B
B. Between Point C and Point D
C. Between Point A and Point D
D. Between Point B and Point D
Answer: D 
32. Select the valid SMDI packet:
A. ND0010001A0002222 00012324
B. RD0010001B0002222 00012324
C. MC0010001D0002222 00012324
D. MWI010001N0002222 00012324
E. MD0010001A0002222 00012324
Answer: E 
33. An AS5300 is configured to authenticate a user for Authentication, Authorization, and Accounting (AAA)
RADIUS server by prompting the user for a PIN number, etc., by using application clid_authen_collect .  Users
are dialing 5551000.  What is the correct configuration?
A. dial-peer voice 1 pots 
incoming called-number 555
destination-pattern 1.
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port 0:D 
pplication clid_authen_collect
B. dial-peer voice 1 pots 
incoming called-number 5551000 
destination-pattern 1 . 
application clid_authen_collect
C. dial-peer voice 1 pots 
destination-pattern 1. 
port 0:D 
application clid_authen_collect
D. dial-peer voice 1 pots
destination-pattern 5551
port 0:D 
application clid_authen_collect
Answer: A 
34. PRI is the preferred method for inter-connecting CallManager 3.2 and below to PBX's because:
A. It is the cheapest solution available
B. It offers the highest level of inter-operability currently available between CallManager and PBX's
C. It allows a customer to share their existing Voicemail system with CallManager subscribers whilst delivering
full functionality
D. Caller ID is available
Answer: BD 
35. Click the Exhibit button. 
Consider the WAN network in the picture shown. The speed of the FR PVC connecting Router A to the FR
network is such that fragmentation is required when a voice call is present across the WAN. The speed of the ATM
PVC connecting Router B is high enough not to require fragmentation. Which technologies are involved in the
QoS solution needed for this scenario.
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A. FRF.12
B. FRF.8
C. FRF.5
D. MLPPP
E. FRF.16
Answer: BD 
36. When troubleshooting a FailSafe problem in Unity, the first place you should look for detailed error messages
is the:
A. tempu.log
B. System Log
C. Application Log
D. SDL Trace
E. Status Monitor
Answer: C 
37. What IOS feature can synthesize VoIP packets and measure latency, jitter and loss statistics?
A. RTP Probe
B. Extended Ping - VoIP Feature
C. Real-Time Voice Responder
D. Class-Based QoS MIB
E. Service Assurance Agent
Answer: E 
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38. When provisioning Cisco CallManager and IPCC Express (CRS), what  IPCC Express agent provisioning
configurations are possible?
A. One pool of agents shared among multiple scripts
B. One pool of CTI ports shared among multiple scripts
C. NxN mesh of agents and ports shared among N scripts
D. All of the above
Answer: D 
39. When Gateways are registering with a Gatekeeper, the Gatekeeper can be:
A. On the same LAN
B. On the same subnet
C. On a remote LAN
D. In a different subnet
E. Any of the above
Answer: E 
40. A router is connected to a PBX via a 4 wire E&M circuit.  All calls to the trunk are failing and it is suspected
that the PBX is not seeing the incoming calls on the trunk.  To determine if this theory is true the PBX is
configured to generate dialtone when it sees an incoming call.  Which of the following should cause the PBX to
generate dialtone?
A. Short the M pin to the Tip pin
B. Short the M pin to ground
C. Short the Tip pin to the Ring pin
D. Short the E pin to ground
E. Short the Tip pin to the M pin
Answer: D 
41. Click the Exhibit button. 
Assume that the gateway is a 6608 blade configured as a gateway and running MGCP; Call Manager runs version
3.1, and that a call is made from phone A to phone X.  All IP streaming is G.711.  Each of the logical links
represented carries certain types of traffic. On which links can Skinny (SCCP) traffic be seen?
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A. 1, 2, 3, and 4
B. 2 and 3
C. 1 only
D. 2, 3, and 4
E. 1 and 4
Answer: C 
42. What is considered a node in a H.323 network?
A. Gateway
B. Gatekeeper
C. Proxy
D. All of the above
Answer: D 
43. What statement about echo is false?
A. Echo is caused by analog components in the voice path.
B. Echo usually exists in a Circuit Switched environment, but goes unnoticed because of the low delay.
C. The term "ERL" refers to a measurement of the volume of Echo heard by the user.
D. Increasing the Echo-Cancellation coverage in an Echo Canceller may also increase Echo Canceller
convergence time.
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Answer: C 
44. What is the target overall loss plan across a telephone network?
A. 0dBm - 8dBm
B. 8dBm - 12dBm
C. 12dBm - 16dBm
D. 16dBm - 20dBm
Answer: C 
45. Click the Exhibit button. 
The Catalyst 6000 in the shown diagram has been configured with the following commands: 
      set qos enable 
      set port qos 5/1-48 vlan-based 
      set port qos 5/1-48 trust-ext untrusted 
      set port qos 5/1-48 trust trust-cos 
Assuming that the IP Phone is connected to port 5/1, which statements are true? 
A. The IP Phone will re-write the CoS of 802.1p/Q-tagged packets from the PC to CoS=0.
B. The Catalyst 6000 switch port 5/1 will re-write the CoS of all packets with a Cos=0.
C. The Catalyst 6000 switch port 5/1 will re-write the CoS of all packets received on VLAN 110 with CoS=5.
D. The IP Phone will not modify the DSCP of packets from the PC.
E. The Catalyst 6000 will not modify the CoS of any packets received on port 5/1.
Answer: ADE 
46. Which standards are related to echo in a network.
A. 165
B. 711
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C. 174
D. 168
E. 323
47. When using the CCMAdmin page of a Subscriber CallManager, changes made to the configuration are:
A. Made locally in the SQL Database, and replicated up to the publisher immediately
B. Made locally in the SQL Database, and replicated up to the publisher at the next scheduled replication
C. Made locally in the SQL Database, and in the Publisher SQL Database
D. Made in the Publisher SQL Database, and replicated to subscribers
Answer: D 
48. A commonly used instance of ADPCM, which encodes using 4-bit samples, giving a transmission rate of 32
kbps is called:
A. ITU-T G.711
B. ITU-T G.723.1
C. ITU-T G.726
D. ITU-T G.728
E. ITU-T G.729
Answer: C 
49. A T1 (1.536M) FR PVC must be configured for voice and data traffic. It is expected that voice will never
require more than half of the bandwidth. What is the most appropriate FRTS configuration for this scenario?
A. map-class frame-relay FRTS-voice frame-relay cir 1536000 frame-relay bc 1536 frame-relay be 0 frame-relay
mincir 1536000
B. map-class frame-relay FRTS-voice frame-relay cir 1536000 frame-relay bc 15360 frame-relay be 1536
frame-relay mincir 1536000
C. map-class frame-relay FRTS-voice frame-relay cir 1536000 frame-relay bc 15360 frame-relay be 0 frame-relay
mincir 1536000
D. map-class frame-relay FRTS-voice frame-relay cir 1536000 frame-relay bc 15360 frame-relay be 0 frame-relay
mincir 768000
Answer: C 
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50. In an IP Contact Center deployment, the Erlang-B Traffic Model is used to provision the following resources:
A. Agents receiving/handling inbound calls
B. Ports on a voice gateway interfacing to the PSTN
C. Ports on an IP-IVR interfacing with Cisco CallManager
D. B and C
E. None of the above
Answer: D