Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 71:

  Which definition is included in a Cisco UC on UCS TRC?

  A. required RAID configuration, when the TRC uses direct-attached storage
  B. configuration of virtual-to-physical network interface mapping
  C. step-by-step procedures for hardware BIOS, firmware, drivers, and RAID setup
  D. configuration settings and patch recommendations for VMware software
  E. server model and local components (CPU, RAM, adapters, local storage) by name only; part numbers are not included because they change over time
  A. required RAID configuration, when the TRC uses direct-attached storage

  ---

  Definition of server model and local components (CPU, RAM, adapters, local storage) at the orderable part number level.

  Required RAID configuration (e.g. RAID5, RAID10, etc.) - including battery backup cache or SuperCap - when the TRC uses DAS storage

  Guidance on hardware installation and basic setup.

  -

  Configuration of Virtual-to-physical network interface mapping is design-dependent and not included in TRC definition.

  -

  Configuration of adapters (such as Cisco VIC, 3rd-party CNA / NIC / HBA) is design-dependent and not included in TRC definition.

  Design, installation and configuration of external hardware is not included in TRC definition, such as:

  -

  Network routing and switching (e.g. routers, gateways, MCUs, ethernet/FC/FCoE switches, Cisco Catalyst/Nexus/MDS, etc.)

  -QoS configuration of route/switch network devices

  -

  Cisco UCS B-Series chassis and switching components (e.g. Cisco UCS 6100/6200, Cisco UCS 2100/2200, Cisco UCS 5100)

  -

  Storage arrays (such as those from EMC, NetApp or other vendors)

  Configuration settings, patch recommendations or step by step procedures for VMware software are not included in TRC definition.

  Infrastructure solutions such as Vblock from Virtual Computing Environment may also be leveraged for configuration details not included in the TRC definition.

• Question 72:

  Refer to the exhibit. A network engineer is troubleshooting failed calls from Cisco Unified Border Element to a five-server Cisco Unified Communications Manager cluster. Which option describes the root cause?

  

  A. Run the All Active Nodes option was not checked
  B. Progress Indication was not received.
  C. The request was sent to a Cisco Unified Communications manager server that does not belong to the Cisco Unified CM group
  D. A second dial peer for load-balancing and redundancy was not available
  E. Transcoding resource was not allocated
  C. The request was sent to a Cisco Unified Communications manager server that does not belong to the Cisco Unified CM group

• Question 73:

  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.
  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.

• Question 74:

  Refer to the exhibit.

  

  A jabber user reports that desktop mode does not work. Connection status shows the following message: "Connection error. Ensure the server information in the phone services tab on the option window is correct. Contact your system administrator for assistance."

  Which two actions will resolve the problem? (Choose two)

  A. Change LDAP port from 389 to 636 in LDAP directory configuration.
  B. Restart DirSync service under unified serviceability.
  C. Change LDAP port from 389 to 443 in LDAP director configuration.
  D. Change LDAP port from 389 to 3268 in LDAP director configuration.
  E. Restart CTI manager service under unified serviceability.
  F. Restart TFTP service under Unified serviceability
  D. Change LDAP port from 389 to 3268 in LDAP director configuration.
  E. Restart CTI manager service under unified serviceability.

• Question 75:

  Refer to the exhibit.

  

  A collaboration engineer is troubleshooting outgoing calls that do not work to a specific number. The PSTN provider is playing a prompt explaining that the dialed number is missing the "1" for long Distance calls. Which four configuration changes resolve this issue? (Choose four)

  A. edit rule 4 and change/+\0\1/ to /+1\0\1\2/
  B. edit rule 1 and change \([27]..\) to (7+.\)
  C. edit rule 3 and change /+1\1\2/ to /+\1\2/
  D. edit rule 2 and change /+\0\2/ to /+1\0\1\2/
  E. edit rule 2 and change \([567][456].\) to \([5-7][4-6].\)
  F. edit rule 4 and change \(.*\) to \(776\)\(.*\)
  G. edit rule 1 and change /+\1\2/ to /+1\1\2/
  H. edit rule 3 and change \(7+ \) to ([27]..\)
  D. edit rule 2 and change /+\0\2/ to /+1\0\1\2/
  F. edit rule 4 and change \(.*\) to \(776\)\(.*\)
  G. edit rule 1 and change /+\1\2/ to /+1\1\2/
  H. edit rule 3 and change \(7+ \) to ([27]..\)

• Question 76:

  Which two Device Pool configuration settings will override the device-level settings when a device is roaming within or outside a device mobility group? (Choose two.)

  A. Adjunct CSS
  B. Device Mobility CSS
  C. Network Locale
  D. Called Party Transformation CSS
  E. AAR CSS
  F. Device Mobility Group
  C. Network Locale
  F. Device Mobility Group

  ---

  The parameters under these settings will override the device-level settings when the device is roaming within or outside a Device Mobility Group. The parameters included in these settings are: ?Date/time Group ?Region ?Media Resource Group List ?Location ?Network Locale ?SRST Reference ?Physical Location ?Device Mobility Group The roaming sensitive settings primarily help in achieving proper call admission control and voice codec selection because the location and region configurations are used based on the device's roaming device pool.

  References: http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/4x/42dvmobl.html

• Question 77:

  The iLBC codec operates at 38 bytes per sample per 20-millisecond interval. What is its codec bit rate in kilobits per second?

  A. 6.3
  B. 13.3
  C. 15.2
  D. 16
  E. 24
  C. 15.2

  ---

  The internet Low Bit Rate Codec (iLBC) is designed for narrow band speech and results in a payload bit rate of 13.33 kbits per second for 30-millisecond (ms) frames and 15.20 kbits per second for 20 ms frames. When the codec operates at block lengths of 20 ms, it produces 304 bits per block, which is packetized as defined in RFC 3952. Similarly, for block lengths of 30 ms it produces 400 bits per block, which is packetized as defined in RFC 3952.The iLBC has built-in error correction functionality to provide better performance in networks with higher packet loss.

• Question 78:

  When deploying Mobile and Remote Access (MRA), which two SAN entries are mandatory in the Expressway Series certificates for secure phone registration? (Choose two.)

  A. Unified CM Phone security profile name in Expressway-C certificate
  B. Unified CM registration domain in Expressway-C certificate
  C. Unified CM Phone security profile name in Expressway-E certificate
  D. IM and Presence Chat node alias in Expressway-C certificate
  E. IM and Presence Chat node alias in Expressway-E certificate
  F. Unified CM registration domain in Expressway-E certificate
  A. Unified CM Phone security profile name in Expressway-C certificate
  E. IM and Presence Chat node alias in Expressway-E certificate

• Question 79:

  Refer to the exhibit.

  

  Which three pieces of information can be derived from this sip massage? (Choose Three)

  A. The call will have no audio
  B. Only OOB DTMF will be supported
  C. G722 codec will be chosen
  D. The B2BUA uses IP 172.16.100.50
  E. This is a flow-around configuration
  F. The call will last only 30 minutes
  B. Only OOB DTMF will be supported
  D. The B2BUA uses IP 172.16.100.50
  F. The call will last only 30 minutes

• Question 80:

  During a Cisco Connection extension greeting, callers can press a single key to be transferred to a specific extension. However, callers report that the system does not process the call immediately after pressing the key. Which action resolves this issue?

  A. Reduce Caller Input timeout in Cisco Unity Connection Service Parameters.
  B. Lower the timer Wait for Additional Digits on the Caller input page.
  C. Enable Ignore Additional Input on the Edit Caller input page for the selected key.
  D. Enable Prepend Digits to Dialed Extensions and configure complete extension number on the Edit Caller input page for the selected key.
  E. Reduce Caller input timeout in Cisco Unity Connection Enterprise Parameters.
  C. Enable Ignore Additional Input on the Edit Caller input page for the selected key.