400-051 Premium Bundle

400-051 Premium Bundle

CCIE Collaboration Certification Exam

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December 4, 2024Last update

Cisco 400-051 Free Practice Questions

Q1. Company ABC is planning to migrate from MCS-hosted Cisco Unified Communications Manager applications to Cisco UC on UCS B-Series servers. Which statement about installation media support is true for this migration? 

A. The install log can be written to a USB flash drive that is attached to the UCS server. 

B. The answer file that is generated by the Answer File Generator (platformConfig.xml) can be read from a USB flash drive to perform an unattended installation on the UCS server. 

C. The Cisco Music on Hold USB audio sound card can be mapped to a virtual USB port on a VMware virtual machine on the UCS server. 

D. The answer file that is generated by the Answer File Generator (platformConfig.xml) can be read from an FLP image that is mounted in a virtual floppy drive. 

E. The Cisco Music on Hold USB audio sound card can be mapped to a virtual serial port on a VMware virtual machine on the UCS server. 

Answer:

Q2. Which SIP header is used by Cisco Unified Communication Manager to support the Redirected Number ID Service? 

A. replaces 

B. RPID 

C. diversion 

D. join 

E. P-charging-vector 

Answer:

Q3. How many destinations can be configured for a SIP trunk on a Cisco Unified Communications Manager 9.1 system when the destination address is an SRV? 

A. 1 

B. 2 

C. 3 

D. 8 

E. 16 

Answer:

Q4. Refer to the exhibit. 

Assume that the serial interface link bandwidth is full T1. What is the maximum amount of bandwidth allowed for priority queuing of RTP packets with a DSCP value of EF? 

A. 33% of 1.544 Mb/s 

B. 5% of 1.544 Mb/s 

C. 38% of 1.544 Mb/s 

D. 62% of 1.544 Mb/s 

E. 0% of 1.544 Mb/s 

Answer:

Q5. Which statement describes the call recording operation on Cisco Unified Contact Center Express call agents that use Cisco IPPA? 

A. Recording is facilitated via desktop monitoring on supported IP phones. 

B. Automatic recording is supported. 

C. Only G.711 codec is supported. 

D. Only SPAN port monitoring is supported. 

E. Call recording is not supported on Cisco Unified CCX call agents that use Cisco IPPA. 

Answer:

Q6. What is the maximum one-way delay, in milliseconds, between any two Cisco Unified Communications Manager servers in a non-Session Management Edition cluster over an IP WAN? 

A. 20 

B. 40 

C. 80 

D. 160 

E. 250 

Answer:

Q7. Which SIP reason phrase maps to SIP response reason code 181? 

A. Ringing 

B. Call is Being Forwarded 

C. Session in Progress 

D. Unknown Number 

E. Call Does not Exist 

Answer:

Q8. What is the maximum number of call-processing subscribers in a standard deployment of a Cisco Unified Communications Manager Session Management Edition cluster? 

A. 3 

B. 4 

C. 5 

D. 8 

E. 16 

Answer:

Q9. Which system location is used for intercluster Enhanced Location CAC on Cisco Unified Communications Manager? 

A. Hub_None 

B. Default 

C. Intercluster 

D. Phantom 

E. Shadow 

Answer:

Q10. Refer to the exhibit. 

IP phone 1 has MAC address of 1111.1111.1111, and IP phone 2 has MAC address of 2222.2222.2222. The first two incoming calls were answered by IP phone 1, and the third incoming call was answered by IP phone 2. 

Which option describes what will happen to the fourth incoming call? 

A. Both phones ring, but only IP phone 2 can answer the call. 

B. Both phones ring and either phone can answer the call. 

C. Both phones ring, but only IP phone 1 can answer the call. 

D. Neither phone rings and the call is forwarded to 2100. 

E. Neither phone rings and the call is forwarded to 2200. 

Answer:

Q11. Refer to the exhibit. 

In this high-availability Cisco IM and Presence deployment with three subclusters, the first user is assigned to server 1A; the second user is assigned to server 2A; and the third user is assigned to server 3A. Assume that Cisco IM and Presence is set to active-active mode. To which server will the fourth user be automatically assigned? 

A. 1A 

B. 3B 

C. 1B 

D. 2A 

E. 3A 

Answer:

Q12. Refer to the exhibit. 

IP phone 1 has MAC address of 1111.1111.1111, and IP phone 2 has MAC address of 2222.2222.2222. The first two incoming calls rang both phones and were answered by IP phone 2. 

Which option describes what will happen to the third incoming call? 

A. Both phones ring, but only IP phone 1 can answer the call. 

B. Both phones ring and either phone can answer the call. 

C. Only IP phone 1 rings and can answer the call. 

D. Neither phone rings and the call is forwarded to 2100. 

E. Neither phone rings and the call is forwarded to 2200. 

Answer:

Q13. When multiple greetings are enabled on Cisco Unity Express, which greeting will take the highest precedence? 

A. standard 

B. meeting 

C. busy 

D. closed 

E. internal 

Answer:

Q14. Refer to the exhibit. 

Your customer sent you this debug output, captured on a Cisco IOS router (router A), to troubleshoot a problem where all H.323 calls that originate from another Cisco IOS router (router B) are being dropped almost immediately after arriving at router A. What is the reason for these disconnected calls? 

A. Calls were unsuccessful because of internal, memory-related problems on router A. 

B. Calls were rejected because the called number was denied on a configured class of restriction list on router A. 

C. Calls were rejected because the VoIP dial peer 1002 was not operational. 

D. Calls were unsuccessful because the router B IP address was not found in the trusted source IP address list on router A. 

E. Calls were rejected by router A because it received an admission reject from its gatekeeper because of toll fraud suspicion. 

Answer:

Q15. How are DTMF digits transported in RFC 2833? 

A. In the RTP stream with the named telephone events payload format. 

B. In the RTP stream with the regular audio payload format. 

C. In SIP NOTIFY messages. 

D. In SIP INFO messages. 

E. In SIP SUBSCRIBE messages. 

Answer:

Q16. Which two SDP content headers can be found in a SIP INVITE message? (Choose two.) 

A. Expires 

B. Contact 

C. Connection Info 

D. Media Attributes 

E. Allow 

F. CSeq 

Answer: CD 

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