Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 321:

  Refer to the exhibit.

  

  A Jabber for Windows application fails to connect to the voicemail server. Which two options cause this problem? (Choose two)

  A. The jetty service has been disabled or is not running.
  B. A voicemail user password configuration error exists.
  C. A firewall is configured for blocking port 7080.
  D. An SSL certificate has an encryption problem.
  E. A company internal DNS server has a timeout problem.
  C. A firewall is configured for blocking port 7080.
  E. A company internal DNS server has a timeout problem.

• Question 322:

  Which statement describes DTMF processing on Cisco Unified Contact Center Express with supported SIP-based agent IP phones that are registered to Cisco Unified Communications Manager?

  A. Cisco Unified CCX receives the DTMF digits via SIP NOTIFY messages.
  B. Cisco Unified CCX receives the DTMF digits in the RTP payload based on RFC 2833.
  C. Cisco Unified CCX receives the DTMF digits via JTAPI messages.
  D. Cisco Unified CCX receives the DTMF digits via SIP INFO messages.
  E. Cisco Unified CCX receives the DTMF digits as part of the audio encoding in the RTP stream.
  C. Cisco Unified CCX receives the DTMF digits via JTAPI messages.

  ---

  Unified CCX CTI ports are notified of caller-entered digits (DTMF input) via JTAPI messages from Unified CM. Unified CCX does not support any mechanism to detect in-band DTMF digits where DTMF digits are sent with voice packets. In deployments with voice gateways or SIP phones that only support in-band DTMF or are configured to use in-band DTMF, an MTP resource must be invoked by Unified CM to convert the in-band DTMF signaling so that Unified CM can notify Unified CCX of the caller-entered digits. Be sure to enable out-of-band DTMF signaling when configuring voice gateways in order to avoid using the previous MTP resources.

  References: http://www.cisco.com/en/US/docs/voice_ip_comm/cust_contact/contact_center/crs/express_9_02/design/guide/UCCX_BK_C39FDB35_00_cisco-unified-contact-center-express_chapter_010.html

• Question 323:

  A user is troubleshooting an FXO line on a Cisco IOS router that remains connected even after the call ends. Which three disconnect methods can be configured to fix this problem? (Choose three)

  A. Loop Current Feed Open Signaling Disconnect
  B. Hookflash Duration Signaling Disconnect
  C. CP-TONE Dual Supervisory Disconnect
  D. Power Denial-based Supervisory Disconnect
  E. Ground-start Signaling Disconnect F. Tone-based Supervisory Disconnect
  D. Power Denial-based Supervisory Disconnect
  E. Ground-start Signaling Disconnect F. Tone-based Supervisory Disconnect

• Question 324:

  Which statement describes the supported integration method when Cisco Unity Connection and Cisco Unified Communications Manager are installed on the same server as Cisco Unified Communications Manager Business Edition?

  A. Only SCCP integration is supported.
  B. Only SIP integration is supported.
  C. Both SCCP or SIP integration are supported, but you must choose one or the other.
  D. Q-Sig integration is supported through a voice-enabled Cisco ISR router.
  E. Circuit-switched integration is supported through PIMG.
  A. Only SCCP integration is supported.

  ---

  When installed on the same server there is no way to create trunk that is why sccp is the only way Cisco Unity Connection and Cisco Unified Communications Manager are installed on the same server.

• Question 325:

  Which statement about G.722.1 codec support on Cisco Unified Communications Manager is true?

  A. It is always preferred by Cisco Unified Communications Manager over G.711.
  B. It is a high-complexity wideband codec.
  C. It operates at bit rates of 15.2 and 13.3 kb/s.
  D. It is supported for SIP and SCCP devices.
  E. It is supported for SIP and H.323 devices.
  E. It is supported for SIP and H.323 devices.

  ---

  G.722.1 is a low-complexity wideband codec operating at 24 and 32 kb/s. The audio quality approaches that of G.722 while using at most half the bit rate. As it is optimized for both speech and music, G.722.1 has slightly lower speech quality than the speech-optimized iSAC codec. G.722.1 is supported for SIP and H.323 devices.

• Question 326:

  Which mechanism enables the Cisco Unified CCX Cisco Agent Desktop application to obtain a copy of the RTP packet stream directly from a supported IP phone?

  A. SPAN port monitoring
  B. desktop monitoring
  C. remote SPAN monitoring
  D. reflector port monitoring
  E. ESPAN monitoring
  B. desktop monitoring

  ---

  Desktop monitoring provides a mechanism for the CAD application to obtain a copy of the RTP packet streams directly from the phone and therefore removes the need for a Monitoring component connected to the SPAN port on the Catalyst switch. A Cisco phone supporting desktop monitoring is required and the agent workstation running CAD must be connected to the data port on the back of the agent phone. The Cisco IP Communicator also supports using desktop monitoring for silent monitoring and recording.

  References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_9_0/design/UCCX_BK_UD5B347F_00_uccx-solution-reference-network-design/UCCX_BK_UD5B347F_00_uccx-solution-referencenetwork-design_chapter_010.html

• Question 327:

  How many destinations can be configured for a SIP trunk on a Cisco Unified Communications Manager 9.1 system when the destination address is an SRV?

  A. 1
  B. 2
  C. 3
  D. 8
  E. 16
  A. 1

  ---

  SIP trunks can be configured with up to 16 destination IP addresses, 16 fully qualified domain names, or a single DNS SRV entry.

  References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/8x/uc8x/trunks.html

• Question 328:

  When route patterns 200X and 200[0-9] exist in the same partition, how does a Cisco Unified Communications Manager select a matching pattern when an IP phone places a call to 2005?

  A. Cisco UCM alternates between the two patterns.
  B. 200X is selected because it has the least characters.
  C. Cisco UCM chooses one of the patterns using a logic that is not configurable.
  D. Cisco UCM randomly selects one of the patterns.
  E. 200[0-9] is selected because it is the most specific match.
  B. 200X is selected because it has the least characters.

• Question 329:

  Where can a Cisco Unified CM administrator define Call Detail Records data collection interval?

  A. Cisco Unified CM Administration Service Parameters
  B. Cisco Unified CM Administration Enterprise Parameters
  C. Cisco Unified Serviceability
  D. Cisco Unified Reporting
  E. Call Detail Records data collection internal is not a configurable parameter.
  B. Cisco Unified CM Administration Enterprise Parameters

  ---

  References:

• Question 330:

  Which description of the expected behavior of a SIP User Agent Client that received a reliable provisional that contains an offer is true?

  A. the UAC must include an answer in a PRACK
  B. the UAC must include an answer in a PRACKACK
  C. the UAC may include an answer in an ACK
  D. the UAC may include an answer in a PRACK
  E. the UAC may include an answer in a PRACKACK
  A. the UAC must include an answer in a PRACK