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2021 Mar 400-051 free practice questions

Q51. Which two statements describe characteristics of Binary Floor Control Protocol? (Choose two.) 

A. Its binary encoding is designed to work in high-bandwidth environments. 

B. It is designed for audio or video conference sessions of three or more participants. 

C. It enables management of shared content resources independent of video streams. 

D. It supports TLS-based authentication. 

E. It supports SIP as well as H.323. 

Answer: CD 


Q52. Which configuration parameter defines whether or not the user portion of a directory URI is case sensitive on Cisco Unified Communications Manager 9.1 or later? 

A. URI Dialing Display Preference in Cisco CallManager Service Parameter 

B. URI Lookup Policy in Cisco CallManager Service Parameter 

C. URI Dialing Display Preference in Enterprise Parameters 

D. URI Lookup Policy in Enterprise Parameters 

E. The user portion of a directory URI is always case sensitive and cannot be changed. 

Answer:


Q53. 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:


Q54. Which Cisco Unified Communications Manager deployment model for clustering over the IP WAN mandates a primary and a backup subscriber at the same site? 

A. multisite with centralized call processing 

B. multisite with distributed call processing 

C. local failover 

D. remote failover 

E. remote failover with Cisco Unified Communications Manager Express as SRST 

Answer:


Q55. 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:


Far out 400-051 practice exam:

Q56. Which Cisco IM and Presence service is responsible for logging all IM traffic that passes through the IM and Presence server to an external database for IM compliance? 

A. Cisco Presence Engine 

B. Cisco Serviceability Reporter 

C. Cisco Sync Agent 

D. Cisco XCP Connection Manager 

E. Cisco XCP Message Archiver 

Answer:


Q57. Which message is used by a Cisco IOS MGCP gateway to send periodic keepalives to its call agent? 

A. CRCX 

B. AUCX 

C. NTFY 

D. RQNT 

E. 200 OK 

Answer:


Q58. Router A and router B are Cisco IOS routers with hardware CFB resources that are registered to the same Cisco Unified Communications Manager server. Which Media Resource Group and Media Resource Group List configuration should be implemented if an administrator wants to make sure that all provisioned DSPs on router A are consumed before router B's DSP is used? 

A. Router A's CFB and router B's CFB should each be configured in its own MRG. Both MRGs should then be grouped into the same MRGL, but the MRG that contains router A's CFB should be listed in higher order than the MRG that contains router B's CFB. Finally, associate the MRGL to all conference resource consumers. 

B. Router A's CFB and router B's CFB should each be configured in its own MRG. Both MRGs should then be further separated into different MRGLs. Finally, associate the MRGL that contains router A's CFB in higher order than router B's CFB to all conference resource consumers. 

C. Router A's CFB and router B's CFB should both be configured in the same MRG with router A's CFB listed higher than that of router B. Then associate the MRG with an MRGL and apply it to all conference resource consumers. 

D. Router A's CFB and router B's CFB should both be configured in the same MRG. Make sure router A's CFB is listed in a higher alphabetical order than router B's CFB. Then associate the MRG with an MRGL and apply it to all conference resource consumers. 

E. Router A's CFB and router B's CFB should both be configured in the same MRG. Use Cisco Unified Communications Manager service parameters to assign a higher priority to router A's CFB. Then associate the MRG with an MRGL and apply it to all conference resource consumers. 

Answer:


Q59. Refer to the exhibit. 

Which DTMF relay method is advertised when the originating SIP gateway sends an INVITE message with a Call-Info header shown? 

A. RFC 2833 

B. SIP INFO 

C. SIP NOTIFY 

D. SIP KPML 

E. In-band audio 

Answer:


Q60. Which two statements describe security services that are provided by the Phone Proxy function on a Cisco ASA appliance? (Choose two.) 

A. It is supported only on phones that use SCCP. 

B. It is supported on an adaptive security appliance that runs in transparent mode. 

C. It provides interworking to ensure that the external IP phone traffic is encrypted, as long as the Cisco Unified Communications Manager cluster runs in secure mode. 

D. It provides a proxy of phone signaling, with optional use of NAT, to hide the Cisco Unified Communications Manager IP address from the public Internet. 

E. It proxies phone media so that internal phones are not directly exposed to the Internet. 

F. It supports IP phones that send phone proxy traffic through a VPN tunnel. 

Answer: DE