Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 1:

  Refer to the exhibit.

  

  A user is on an outbound call through a Cisco Unified border Element gateway. When the user places the call on hold, the remote party hears silence. The Cisco Unified Communication Manager Cluster is using multicast on hold. The Cisco Unified Border Element Gateway is on the same subnet as the Cisco Unified Communication Manager Cluster.

  Which two options will resolve this issue? (Choose two)

  A. Media flow-through must be configured.
  B. CCM-manager music-on-hold should be removed from the configuration.
  C. The session transport UDP command must be configured.
  D. The Cisco unified border Element router must be set up for gateway-based MOH.
  E. The pass-thru content sdp command should be removed.
  A. Media flow-through must be configured.
  E. The pass-thru content sdp command should be removed.

• Question 2:

  A company that is using the Cisco Unified Contact Center Express Enhanced version requires that selected types of agent calls are automatically recorded. Which call recording operation can be used to satisfy this requirement?

  A. Instruct agents to use the Record button on Cisco IPPA to trigger recording.
  B. Instruct supervisors to use the Record button on Cisco Agent Desktop to trigger recording.
  C. Instruct supervisors to use the Record button on Cisco Supervisor Desktop to trigger recording.
  D. Configure the Cisco Agent Desktop workflow to trigger recording.
  E. Recording is not supported on the Cisco Unified CCX Enhanced version. It is supported only on the Premium version.
  D. Configure the Cisco Agent Desktop workflow to trigger recording.

  ---

  On-demand recording of active agent calls, available in Enhanced and Premium versions, improves customer service and encourages appropriate and consistent agent behavior and it is a feature of Cisco Agent Desktop.

• Question 3:

  A SIP carried delivers DIDs to a Cisco Unified Border Element in the form of +155567810XX, where the last two digits could be anything from 00 to 99. To match the internal dial plan, that number must be changed to 6785XXX, where the last two digits should be retained. Which two translation profiles create the required outcome? (Choose two)

  A. rule 1 /555\(.*\).*\(.*\)/ /\150\2/
  B. rule 1 /+ 1555\(...\).\(...\)$/ /\15\2/
  C. rule 1 /^\+ 1555\(678\)10\(..\)$/ /\150\2/
  D. rule 1 /^15+678\(... .\)/678\1/
  E. rule 1 /.15+678?10?\(..\)/ /67850\1/
  C. rule 1 /^\+ 1555\(678\)10\(..\)$/ /\150\2/
  E. rule 1 /.15+678?10?\(..\)/ /67850\1/

• Question 4:

  Which two statements describe security services that are provided by the Phone Proxy function on a Cisco ASA appliance? (Choose two.)

  A. It is supported only on phones that use SCCP.
  B. It is supported on an adaptive security appliance that runs in transparent mode.
  C. It provides interworking to ensure that the external IP phone traffic is encrypted, as long as the Cisco Unified Communications Manager cluster runs in secure mode.
  D. It provides a proxy of phone signaling, with optional use of NAT, to hide the Cisco Unified Communications Manager IP address from the public Internet.
  E. It proxies phone media so that internal phones are not directly exposed to the Internet.
  F. It supports IP phones that send phone proxy traffic through a VPN tunnel.
  D. It provides a proxy of phone signaling, with optional use of NAT, to hide the Cisco Unified Communications Manager IP address from the public Internet.
  E. It proxies phone media so that internal phones are not directly exposed to the Internet.

  ---

  TLS Proxy is typically deployed in front of Cisco Unified Communications Manager and other unified communications application servers that utilize media encryption. TLS Proxy is not designed to provide remote-access encryption services for remote phones or client endpoints. Other solutions such as Cisco ASA Phone Proxy or IP Security/Secure Sockets Layer (IPsec/SSL) VPN services are more appropriate. TLS Proxy is not designed to provide a secure campus soft phone solution where the requirement is to provide secure data to phone VLAN traversal or for proxying connections to Cisco Unified Communications Manager.

• Question 5:

  Multiple Jabber for Windows users are having problems logging into the voicemail server. The Cisco Unity Connection administrator has reset the password and emailed them the new credentials, as well as the instructions about how to reset them in Jabber. The users cannot see the Phone Accounts tab under Jabber settings to complete the instructions. Which two steps resolve this issue? (Choose two.)

  A. In the Cisco Unified CM Jabber Service Profile, change the Credentials source for voicemail service to "not set".
  B. In Cisco Unified CM, create a MailStore service and assign it to the Jabber Service Profile as Primary.
  C. In the IMandP server CCMCIP Profile, uncheck the "Make this the default CCMCIP Profile for the system".
  D. In the IMandP server Enterprise Parameters Configuration, enable the Phone Personalization parameter.
  E. In the Cisco Unified CM Jabber Service Profile, uncheck "Make this the default service profile for the system".
  A. In the Cisco Unified CM Jabber Service Profile, change the Credentials source for voicemail service to "not set".
  B. In Cisco Unified CM, create a MailStore service and assign it to the Jabber Service Profile as Primary.

• Question 6:

  Refer to the exhibit.

  

  A collaboration engineer configured MVA for a company using an existing Cisco IOS voice gateway.

  When testing inbound calls it is found that they are all failing.

  Which two sets of configuration changes fix this problem? (Choose two)

  A. Dial-peer voice 4100 potsServices ccmDestination-pattern 4100$
  B. Dial-peer voice 4101 voipDtmf-relay h245-alphanumericSession target ipv4:172.16.100.50
  C. Dial-peer voice 4101 voipDtmf-relay h245-alphanumericSession target ipv4:172.16.100.50Codec g711ulaw
  D. Dial-peer voice 4100 potsservice CCM
  E. Dial-peer voice 4100 potsservice CCMIncoming called-number ,T
  F. Dial-peer voice 4101 VOIPDtmf-relay h245-signalSession target ipv4:172.16.100.50Codec g711alaw
  A. Dial-peer voice 4100 potsServices ccmDestination-pattern 4100$
  C. Dial-peer voice 4101 voipDtmf-relay h245-alphanumericSession target ipv4:172.16.100.50Codec g711ulaw

• Question 7:

  What is the minimum number of H.225 messages required to establish an H.323 call with bidirectional media?

  A. 1
  B. 2
  C. 3
  D. 4
  E. 5
  B. 2

  ---

  A typical H.245 exchange looks similar to below figure After this exchange of messages, the two endpoints (EP) in this figure would be transmitting audio in each direction. The number of message exchanges is numerous, each has an important purpose, but nonetheless takes time. For this reason, H.323 version 2 (published in 1998) introduced a concept called Fast Connect, which enables a device to establish bi-directional media flows as part of the H.225.0 call establishment procedures. With Fast Connect, it is possible to establish a call with bi-directional media flowing with no more than two messages, like in figure 3. Fast Connect is widely supported in the industry. Even so, most devices still implement the complete H.245 exchange as shown above and perform that message exchange in parallel to other activities, so there is no noticeable delay to the calling or called party.

  

• Question 8:

  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.
  C. It enables management of shared content resources independent of video streams.
  D. It supports TLS-based authentication.

  ---

  BFCP is a deliverable developed as part of the Internet Engineering Task Force (IETF) XCON Centralized Conferencing working group. The IETF XCON working group was formed to focus on delivering a standards-based approach to managing IP conferencing while promoting broad interoperability between software and equipment vendors.

• Question 9:

  What is a major disadvantage of virtual machines versus containers?

  A. Operational Management
  B. Vendor lock-in
  C. Limited management tools
  D. Security
  E. Boot time
  D. Security

• Question 10:

  A Cisco Unified Contact Center Express manager wants to add database integration to the self-service interactive voice response application. Which four types of licensing and database servers support this requirement? (Choose four.)

  A. The server must have enhanced licensing.
  B. The server must have premium licensing.
  C. A server running Sybase Adaptive Server is required.
  D. A server running Oracle is required.
  E. A server running Postgress SQL is required.
  F. A server running SAP SQL server is required.
  G. A server running Microsoft SQL server is required.
  H. The server must have standard licensing.
  B. The server must have premium licensing.
  C. A server running Sybase Adaptive Server is required.
  D. A server running Oracle is required.
  G. A server running Microsoft SQL server is required.