Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 221:

  Refer to the exhibit.

  

  The exhibit shows an outgoing SIP 401 response message from Cisco Unified Communications Manager to a SIP VoIP service provider gateway. Which action can the Cisco Unified Communications Manager systems administrator use to change the response to "200 OK"?

  A. Make sure the gateway IP address of the SIP VoIP service provider is defined correctly in Cisco Unified Communications Manager SIP trunk.
  B. Enable OPTIONS ping on Cisco Unified Communications Manager SIP trunk.
  C. Disable OPTIONS ping on Cisco Unified Communications Manager SIP trunk.
  D. Create an SIP response alias to force outgoing 401 messages to "200 OK".
  E. Disable digest authentication on Cisco Unified Communications Manager SIP trunk.
  E. Disable digest authentication on Cisco Unified Communications Manager SIP trunk.

  ---

  Because Right now CUCM challenges the identity of a SIP user agent and must configure digest credentials for the application user in CUCM or you have to disable it for stop challenging by CUCM.

  References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/security/9_0_1/secugd/CUCM_BK_CCB00C40_00_cucm-security-guide-90/CUCM_BK_CCB00C40_00_cucm-security-guide_chapter_011010.html

• Question 222:

  Which digital modulation method is used to transmit caller ID information on analog FXS ports on Cisco IOS routers?

  A. DTMF
  B. PSK
  C. FSK
  D. MF
  E. pulse dialing
  C. FSK

  ---

  Link:-http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/vcr1/vcr1-cr-book/vcr-c4.html

• Question 223:

  Which option cannot be recorded as a video greeting in Cisco Unity Connection 10.x?

  A. alternate
  B. holiday
  C. closed
  D. internal
  E. error
  F. standard
  G. busy
  E. error

  ---

  Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/10x/user/guide/phone/b_10xcucugphone/b_10xcucugphone_chapter_01000.html

• Question 224:

  Which three components are required when configuring the Cisco Unified Communications Manager for time-of-day routing? (Choose three.)

  A. Partition
  B. Time Period
  C. Time Schedule
  D. Time Zone
  E. Date Time Group
  A. Partition
  B. Time Period
  C. Time Schedule

• Question 225:

  A client wants to play and compose voice message from Microsoft Outlook.

  What is required for this functionality?

  A. Single inbox user message delivery with folder deletion.
  B. Single inbox with mailboxes larger than 2 GB
  C. Single inbox with ViewMail
  D. Single inbox synchronization with send and draft messages
  C. Single inbox with ViewMail

• Question 226:

  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.
  D. URI Lookup Policy in Enterprise Parameters

  ---

  Cisco Unified Communications Manager supports the following formats in the user portion of a directory URI (the portion before the @ symbol):

  Accepted characters are a-z, A-Z, 0-9, !, $, %, and, *, _, +, ~, -, =, \, ?, \, `, ,, ., /.

  The user portion has a maximum length of 47 characters.

  The user portion accepts percent encoding from %2[0-9A-F] through %7[0-9A-F]. For some accepted characters, Unified CM automatically applies percent encoding. See below for more information on percent encoding.

  The user portion is case-sensitive or case-insensitive depending on the value of the URI Lookup Policy enterprise parameter. The default value is case-sensitive.

  References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/bat/9_1_1/CUCM_BK_C271A69D_00_cucm-bulk-administration-guide-91/CUCM_BK_C271A69D_00_cucm-bulk-administration-guide-91_chapter_01001110.html

• Question 227:

  Which option describes how NFV, OpenStack, and KVM relate to each other?

  A. OpenStack and NFV enable KVM.
  B. NFV and KVM are based on OpenStack.
  C. OpenStack and KVM can be used to provide NFV.
  D. OpenStack and KVM are not related to NFV.
  C. OpenStack and KVM can be used to provide NFV.

• Question 228:

  Which ITU-T recommendation defines the procedures for using more than one video channel in H.320-based systems?

  A. H.324
  B. H.230
  C. H.239
  D. H.264
  E. H.329
  C. H.239

  ---

  H.239 is the ITU standard for a second video channel; this is supported by all the major vendors, and is the only content channel standard supported by Cisco acquired Codian products or Cisco TelePresence Serial Gateway Series products on H.323 video calls. Cisco acquired Codian products need to be configured to enable H.239. Any H.323 endpoint that also supports the H.239 protocol can source this channel, as can a VNC connection, though some endpoints need to be configured to use H.239 instead of their proprietary solution.

• Question 229:

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

  ---

  Trusted source IP address list on router is a list which secures the connectivity of router if it is enabled then we need to give the trusted entry for any route to reach.

• Question 230:

  Users report that they are unable to control their Cisco 6941 desk phone from their Jabber client, but the Jabber client works as a soft phone. Which two configuration changes allow this? (Choose two) A. Assign group "Standard CTI Allow Control of Phones supporting Connected Xfer and Conf" to the user.

  B. Set the End User page to the Primary Extension on the desk phone.
  C. Set the Owner User ID on the desk phone.
  D. Assign group "Standard CTI Enabled User Group" to the user.
  E. Assign group "Standard CTI Allow Control of Phones Supporting Rollover Mode" to the user.
  E. Assign group "Standard CTI Allow Control of Phones Supporting Rollover Mode" to the user.