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2021 Mar 400-051 practice
Q1. 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
Q2. Which element was added to H.225 messages to enable Fast Connect in H.323 version 2?
A. fastStart
B. fastConnect
C. H.245 PDU
D. User-User Information
E. Connection Information
Answer: A
Q3. Which two statements describe characteristics of Cisco Unified Border Element high availability, prior to Cisco IOS release 15.2.3T, using a box-to-box redundancy configuration? (Choose two.)
A. It leverages HSRP for router redundancy and GLBP for load sharing between a pair of routers.
B. Cisco Unified Border Element session information is check-pointed across the active and standby router pair.
C. It supports media and signal preservation when a switchover occurs.
D. Only media streams are preserved when a switchover occurs.
E. It can leverage either HSRP or VRRP for router redundancy.
F. The SIP media signal must be bound to the loopback interface.
Answer: BD
Q4. 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: E
Q5. 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: A
Rebirth 400-051 practice exam:
Q6. In which call state does the Mobility soft key act as a toggle key to enable or disable Single Number Reach for Cisco Unified Communications Manager Express SCCP IP phones?
A. idle
B. seized
C. alerting
D. ringing
E. connected
Answer: A
Q7. Which two user portion format conditions are true for directory URI on Cisco Unified Communications Manager 9.1 or later? (Choose two.)
A. It supports the $ character.
B. It support space between characters.
C. It has a maximum length of 50 characters.
D. It has a maximum length of 254 characters.
E. It is always case-sensitive.
F. It cannot be a directory number.
Answer: AB
Q8. What does a comma accomplish when it is used in a SIP Dial Rule pattern that is associated with a Cisco 9971 IP Phone that is registered to Cisco Unified Communications Manager?
A. It inserts a 500-millisecond pause between digits.
B. It causes the phone to generate a secondary dial tone.
C. It is a delimiter and has no significant dialing impact.
D. It indicates a timeout value of 5000 milliseconds.
E. It is an obsolete parameter and will be ignored.
Answer: B
Q9. Which statement about what happens to incoming calls to a Cisco Unified Communications Manager native call queue when no hunt members are logged in or registered is true?
A. Calls are handled according to the Forward Hunt No Answer settings on the Hunt Pilot configuration page.
B. Calls are handled according to the Not Available Hunt Option settings on the Line Group Configuration page.
C. Calls are handled according to the Forward Hunt Busy settings on the Hunt Pilot configuration page.
D. Calls are forward to the Forward Busy Calls To destination if configured; otherwise the calls are disconnected.
E. Calls are handled according to the correspondent parameters under the Queuing section on the Hunt Pilot Configuration page.
Answer: E
Q10. Refer to the exhibit.
You received this debug output to troubleshoot a Cisco IOS MGCP gateway problem at a customer site. What is the purpose of this message?
A. The MGCP gateway uses this message to respond to an RQNT message from Cisco Unified Communications Manager.
B. The MGCP gateway uses this message to respond to an AUCX message from Cisco Unified Communications Manager.
C. The MGCP gateway uses this message to respond to an AUEP message from Cisco Unified Communications Manager.
D. The MGCP gateway uses this message to respond to a DLCX message from Cisco Unified Communications Manager.
E. The MGCP gateway uses this message to respond to an NTFY message from Cisco Unified Communications Manager.
Answer: C