Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 211:

  Refer to the exhibit.

  

  A collaboration engineer is configuring device mobility. Which three occur to phone A1 when it moves to physical location B? (Choose three)

  A. Phone A PSTN calls preserve home location dialing behavior.
  B. Phone A inherits CSS from roaming device pool DP_B2.
  C. Phone A PSTN calls Adopts roaming location dialing behavior.
  D. Phone A retains CSS from Home device pool DP_A1.
  E. Phone A retains media Resource group list from home device pool DP_A1.
  F. Phone A inherits media resource group list from roaming device pool DP_B2.
  B. Phone A inherits CSS from roaming device pool DP_B2.
  C. Phone A PSTN calls Adopts roaming location dialing behavior.
  E. Phone A retains media Resource group list from home device pool DP_A1.

• Question 212:

  Which Cisco Unified CM service is installed by default and authenticates certificates on behalf of IP phones and other endpoints?

  A. Cisco CTL Provider
  B. Cisco Certificate Authority Proxy Function
  C. Cisco Trust Verification
  D. Cisco CallManager
  E. Cisco TFTP
  C. Cisco Trust Verification

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  References:

• Question 213:

  Refer to the exhibit. Which event is next in this SIP call flow when Andrew hangs up the call?

  

  A. A BYE is generated by Andrew.
  B. A DISCONNECT is generated by Andrew.
  C. A NOTIFY is generated by Andrew.
  D. A "487 Request Terminated" is generated by Andrew.
  E. A CANCEL is generated by Andrew.
  C. A NOTIFY is generated by Andrew.

• Question 214:

  Refer to the exhibit. A network engineer is debugging inbound MVA calls that stopped working after a power outage. Initial inspection did not uncover any configuration changes. Based on the debug output, what is the cause of this issue?

  

  A. The Cisco Unified Communications Manager service parameter Enable Mobile Voice Access defaulted to false after the outage.
  B. The application ccm should be capitalized to fix this problem.
  C. The alternate call control application that is configured is releasing the call internally.
  D. The Cisco Unified Communications Manager Publisher server is not reachable.
  B. The application ccm should be capitalized to fix this problem.

• Question 215:

  What is the maximum number of Cisco Unified Communications Manager subscriber pairs in a megacluster deployment?

  A. 4
  B. 8
  C. 12
  D. 16
  E. 32
  B. 8

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  There can be up to 8 pairs of subscribers, 16 subscribers total and must be in a 1:1 redundancy mode (8 active, 8 standby).

• Question 216:

  Which two are the requirements of database cluster client and server certificates when configuring database clustering on Cisco Meeting Servers? (Choose two.)

  A. The CN of the database cluster server certificate must include the domain name of the Call Bridge
  B. The CN of the database cluster server certificate must include the hostname of the Call Bridge
  C. The CN of a database cluster client certificate must include the Call Bridge server name
  D. The CN of a database cluster client certificate must include the "postgres" keyword
  E. The CN of the database cluster server certificate must include the FQDN of the Call Bridge
  F. The CN of a database cluster client certificate must include the domain name of the Call Bridge
  A. The CN of the database cluster server certificate must include the domain name of the Call Bridge
  D. The CN of a database cluster client certificate must include the "postgres" keyword

• Question 217:

  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
  E. 0% of 1.544 Mb/s

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  Since the use of the "priority" keyword was not used in this example 0% is the correct answer.

• Question 218:

  Refer the exhibit. Which description of the event captured in the SIP message between a Cisco Unified Communications Manager Express router and Cisco Unity Express is true?

  

  A. The MWI notification can be destined only to a SIP IP phone
  B. The MWI notification method used is subscribe-notify
  C. The MWI notification can be destined only to a SCCP OP phone
  D. The MWI notification method used is outcall
  E. The MWI notification method used is unsolicited
  A. The MWI notification can be destined only to a SIP IP phone

• Question 219:

  Which two types of patterns can optionally be marked with urgent priority in Cisco Unified Communications Manager version 11.0? (Choose two.)

  A. Route Pattern
  B. SIP Route Pattern
  C. Voice mail Pilot Number
  D. Intercom Directory Number
  E. CTI Route Point Directory Number
  F. Meet-Me Number
  B. SIP Route Pattern
  D. Intercom Directory Number

• Question 220:

  Which Cisco IOS multipoint video conferencing profile is also known as best-effort video on the Cisco Integrated Router Generation 2 with packet voice and video digital signal processor 3?

  A. homogeneous
  B. guaranteed-audio
  C. rendezvous
  D. heterogeneous
  E. flex mode video
  B. guaranteed-audio

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  Three types of video profiles are supported: homogeneous conferences (video switching), heterogeneous conferences (video mixing), and guaranteed audio conferences (best-effort video). As the name suggests, when Guaranteed Audio Conferences is configured, the system attempts to display video for all participants; however, it does not guarantee that the video of all participants is displayed. For those participants whose video is not displayed, participants are downgraded to audio-only and the profile guarantees preservation of the audio portion of the call. This option gives you added flexibility because the DSPs are not all reserved when the profile is created; the system attempts to reserve them when this profile is activated with an actual conference. For example: dspfarm profile 1 conference video guaranteed-audio codec h264 vga codec h264 4cif

  References: http://www.cisco.com/c/en/us/products/collateral/unified-communications/voice-video-conferencing-isr-routers/qa_c67-649850.html