Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 491:

  In a multicluster deployment model, a customer is using centralized TFTP service. Firewalls are being implemented between each of the clusters. After the installation of the firewalls, the centralized TFTP stopped serving files. What must be changed on the firewalls to fix this issue?

  A. Open TCP port 22 between the leaf clusters and the central cluster.
  B. Open TCP port 443 between the leaf cluster and the central cluster.
  C. Open TCP port 8443 between the leaf cluster and the central cluster.
  D. Open UDP port 69 between the leaf cluster and the central cluster.
  E. Open TCP port 80 between the leaf cluster and the central cluster.
  F. Open UDP port 500 to enable certificate synchronization between the TFTP servers.
  D. Open UDP port 69 between the leaf cluster and the central cluster.

• Question 492:

  

  Refer to the exhibit. How does Cisco Unity Express respond to this message when it is configured for subscribe-notify MWI notification?

  A. 200 OK
  B. 202 Accepted
  C. ACK
  D. Cisco Unity Express waits for a new message and responds with Notify
  E. NOTIFY
  E. NOTIFY

• Question 493:

  Refer to the exhibit.

  

  Assume the B-ACD configuration on a Cisco Unified Communications Manager Express router is operational. How much time does a member of the hunt group have to answer a queue call that is ringing on their extension?

  A. 5 seconds
  B. 10 seconds
  C. 20 seconds
  D. 30 seconds
  E. 40 seconds
  B. 10 seconds

  ---

  As you can see the timeout 10 sec in ephone-hunt 1 means hunt group membes have to answer the queued call within 10 sec.

• Question 494:

  If the default lifetime of OAuth access token issued by a Cisco Unified CM's authorization service is set to 120 minutes, when will a Jabber client try to obtain a new access token?

  A. After its current access token is 90 minutes old
  B. After its current access token is 60 minutes old
  C. After its current access token is 120 minutes old
  D. After its current access token is 100 minutes old
  E. Never
  C. After its current access token is 120 minutes old

• Question 495:

  On which web administration page can you verify database replication health in a two-server Cisco Unified CM cluster running version 9.1?

  A. Cisco Unified OS Administration
  B. Cisco Unified CM Administration
  C. Disaster Recovery System
  D. Cisco Unified Reporting
  E. Cisco Unified Serviceability.
  D. Cisco Unified Reporting

• Question 496:

  Which statement about what happens to a Cisco IOS SIP VoIP dial-peer that never received any responses to its out-of-dialog OPTIONS ping is true?

  A. Its admin state will be up but operational state will be down.
  B. Its admin and operational state will be down.
  C. Its admin and operational state will remain up.
  D. Its admin state will be up but operational state will be "busy-out".
  E. Its admin and operational state will be "busy-out".
  A. Its admin state will be up but operational state will be down.

  ---

  You can check the validity of your dial peer configuration by performing the following tasks:

  ?If you have relatively few dial peers configured, you can use the show dial-peer voice command to verify that the configuration is correct. To display a specific dial peer or to display all configured dial peers, use this command. The following

  is sample output from the show dial-peer voice command for a specific VoIP dial peer:

  router# show dial-peer voice 10

  VoiceOverIpPeer10

  tag = 10, dest-pat = \Q',

  incall-number = \Q+14087',

  group = 0, Admin state is up, Operation state is down

  Permission is Answer,

  type = voip, session-target = \Q',

  sess-proto = cisco, req-qos = bestEffort,

  acc-qos = bestEffort,

  fax-rate = voice, codec = g729r8,

  Expect factor = 10,Icpif = 30, VAD = disabled, Poor QOV Trap = disabled,

  Connect Time = 0, Charged Units = 0

  Successful Calls = 0, Failed Calls = 0

  Accepted Calls = 0, Refused Calls = 0

  Last Disconnect Cause is ""

  Last Disconnect Text is ""

  Last Setup Time = 0

  ?To show the dial peer that matches a particular number (destination pattern), use the show dialplan number command. The following example displays the VoIP dial peer associated with the destination pattern 51234:

  router# show dialplan number 51234

  Macro Exp.: 14085551234

  VoiceOverIpPeer1004

  tag = 1004, destination-pattern = \Q+1408555....',

  answer-address = \Q',

  group = 1004, Admin state is up, Operation state is up

  type = voip, session-target = \Qipv4:1.13.24.0',

  ip precedence: 0 UDP checksum = disabled

  session-protocol = cisco, req-qos = best-effort,

  acc-qos = best-effort,

  fax-rate = voice, codec = g729r8,

  Expect factor = 10, Icpif = 30,

  VAD = enabled, Poor QOV Trap = disabled

  Connect Time = 0, Charged Units = 0

  Successful Calls = 0, Failed Calls = 0

  Accepted Calls = 0, Refused Calls = 0

  Last Disconnect Cause is ""

  Last Disconnect Text is ""

  Last Setup Time = 0

  Matched: +14085551234 Digits: 7

  Target: ipv4:172.13.24.0

• Question 497:

  Which four requirements are mandatory to enable a mixed mode Cisco Unified CM cluster? (Choose four.)

  A. Cisco CTL Provider Service activated and enabled
  B. Cisco Certificate Authority Proxy Function activated and enabled
  C. Cisco Trust Verification activated and enabled
  D. Cisco CTL client
  E. a minimum of one USB e-token
  F. a minimum of two USB e-token
  G. a minimum of one soft e-token
  A. Cisco CTL Provider Service activated and enabled
  B. Cisco Certificate Authority Proxy Function activated and enabled
  D. Cisco CTL client
  F. a minimum of two USB e-token

• Question 498:

  Refer to the exhibit.

  

  A network engineer is troubleshooting a NTP synchronized issue in CUCM. Why is NTP unsynchronized?

  A. The NTP server used is a Windows based NTP server.
  B. The IOS Command NTP server 172.25.140.151 version 3 is advertising NTPv3.
  C. The NTP server stratum is higher than four.
  D. A firewall is blocking NTP port 123.
  A. The NTP server used is a Windows based NTP server.

• Question 499:

  Refer to the exhibit.

  

  10.1.1.1 and 10.1.1.2 are node IP addresses of a Cisco Unified CM cluster. Which statement describes the correct Cisco Unified CM configurations that produced the output shown in the exhibit?

  A. Device Name on the Cisco Unified CM Gatekeeper configuration page is HQGK.
  B. Device Name on the Cisco Unified CM H.225 Trunk (Gatekeeper Controlled) configuration page is HQGK.
  C. Device Name on the Cisco Unified CM H.225 Trunk (Gatekeeper Controlled) configuration page is HQGK_1,HQGK_2.
  D. Device Name on the Cisco Unified CM Gatekeeper configuration page is HQGK_1,HQGK_2.
  E. Not enough information has been provided to answer this question.
  B. Device Name on the Cisco Unified CM H.225 Trunk (Gatekeeper Controlled) configuration page is HQGK.

• Question 500:

  Which capability is support by LLDP-MED but not by Cisco Discovery Protocol?

  A. LAN speed discovery
  B. network policy discovery
  C. location identification discovery
  D. power discovery
  E. trust extension
  A. LAN speed discovery

  ---

  LLDP-MED supports both LAN speed and duplex discovery. Cisco Discovery Protocol supports duplex discovery only, but this limited support is not seen as a problem because if there is a speed mismatch, LLDP-MED and Cisco Discovery Protocol cannot be exchanged and thus cannot be used to detect the mismatch.