Tips to Pass 400-051 Exam (21 to 30)

Exambible offers free demo for 400-051 exam. "CCIE Collaboration", also known as 400-051 exam, is a Cisco Certification. This set of posts, Passing the Cisco 400-051 exam, will help you answer those questions. The 400-051 Questions & Answers covers all the knowledge points of the real exam. 100% real Cisco 400-051 exams and revised by experts!


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Q21. The number of calls waiting in a Cisco Unified Communications Manager native call queue has reached its maximum limit. 

Which statement about what happens to additional incoming calls is true? 

A. Calls are handled according to the Forward Hunt Busy settings on the Hunt Pilot configuration page. 

B. Calls are handled according to the Forward Hunt No Answer settings on the Hunt Pilot configuration page. 

C. Calls are handled according to the Forward Hunt Busy settings on the Line Group members. 

D. Calls are handled according to the Hunt Options settings on the Line Group Configuration page. 

E. Calls are handled according to the When Queue Is Full settings on the Hunt Pilot Configuration page. 

Answer:


Q22. Which two call processing features have a lower priority than the Do Not Disturb settings on a Cisco IP phone? (Choose two.) 

A. park reversion for a locally parked call 

B. hold reversion 

C. intercom 

D. pickup notification 

E. terminating side of a call back 

F. originating side of a call back 

Answer: DE 


Q23. Assume 6 bytes for the Layer 2 header, 1 byte for the end-of-frame flag, and a 40-millisecond voice payload, how much bandwidth should be allocated to the strict priority queue for five VoIP calls that use a G.729 codec over a multilink PPP link? 

A. 87 kb/s 

B. 134 kb/s 

C. 102.6 kb/s 

D. 77.6 kb/s 

E. 71.3 kb/s 

Answer:


Q24. To which Cisco enterprise medianet application class does Cisco Unified Personal Communicator belong? 

A. VoIP Telephony 

B. Real-time Interactive 

C. Multimedia Conferencing 

D. Broadcast Video 

E. Low Latency Data 

Answer:


Q25. Refer to the exhibit. 

IP phone 1 has the MAC address 11111.1111.1111, while IP phone 2 has the MAC address 2222.2222.2222. The first two incoming calls were answered by IP phone 1, while the third incoming call was answered by IP phone 2. What will happen to the fourth incoming call? 

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

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

C. Only IP phone 2 will ring and can answer the call. 

D. Neither phone will ring and the call will be forwarded to 2100. 

E. Neither phone will ring and the call will be forwarded to 2200. 

Answer:


Q26. Which SIP request method enables reliability of SIP 1xx response types? 

A. ACK 

B. PRACK 

C. OPTIONS 

D. CANCEL 

E. REGISTER 

Answer:


Q27. Which two responses are examples of client error responses in SIP protocol? (Choose two.) 

A. 302 Moved Temporarily 

B. 404 Not Found 

C. 503 Service Unavailable 

D. 502 Bad Gateway 

E. 604 Does Not Exist Anywhere 

F. 408 Request Timeout 

Answer: BF 


Q28. Which statement describes a disadvantage of using the Cisco TFTP service to serve IP phone load files? 

A. The Cisco TFTP services can run on only one Cisco Unified Communications Manager server in a cluster. 

B. Because TFTP operates on top of UDP, there is a high risk of corrupted load file delivery at the completion of the TFTP process due to undetected data loss in the network. 

C. If a response is not received in the timeout period, the TFTP server will not resend the data packet. 

D. Packet loss can significantly increase the TFTP session completion time. 

E. Because TFTP operates with an adaptive timeout period, the time to complete the file transfer is unpredictable. 

Answer:


Q29. Refer to the exhibit. 

How many inbound calls can be handled simultaneously between ephone 1 and ephone 2 before a user busy tone is returned? 

A. 6 

B. 7 

C. 8 

D. 9 

E. 11 

Answer:


Q30. Refer to the exhibit. 

The exhibit shows the Cisco IOS CLI output of debug ip dhcp packet, which was captured on a router that is located at a branch office where a single IP phone is located. There is a standalone Cisco Unified Communications Manager server at the central site, which also provides DHCP services to the IP phone at the branch office. You are troubleshooting a problem where the IP phone could not register to Cisco Unified Communications Manager. You have confirmed that the IP phone received an IP address in the correct subnet and with a correct subnet mask from the DHCP server. Assuming the IP phone is correctly defined on Unified CM, which two statements about the network components are true? (Choose two.) 

A. The MAC address of the IP phone is 01ec44761e3e. 

B. The IP address of the DHCP server is 10.101.15.1. 

C. The MAC address of the VLAN 101 interface is ec44761e3e7d. 

D. The IP address of the VLAN 101 interface is 10.101.15.1. 

E. There is IP connectivity between the VLAN 101 interface of the branch router and the ip-helper address that is configured on this interface. 

F. There is IP connectivity between the IP phone and the ip-helper address on the VLAN 101 interface. 

Answer: DE