Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 511:

  Which two statements describe characteristics of Cisco Unified Border Element high availability, prior to Cisco IOS release 15.2.3T, using a box-to-box redundancy configuration? (Choose two.)

  A. It leverages HSRP for router redundancy and GLBP for load sharing between a pair of routers.
  B. Cisco Unified Border Element session information is check-pointed across the active and standby router pair.
  C. It supports media and signal preservation when a switchover occurs.
  D. Only media streams are preserved when a switchover occurs.
  E. It can leverage either HSRP or VRRP for router redundancy.
  F. The SIP media signal must be bound to the loopback interface.
  B. Cisco Unified Border Element session information is check-pointed across the active and standby router pair.
  D. Only media streams are preserved when a switchover occurs.

  ---

  Configure box-to-box redundancy when you:

  Expect the behavior of the CSSs to be active/standby (only the master CSS processes flows)

  Can configure a dedicated Fast Ethernet (FE) link between the CSSs for the VRRP heartbeat

  Do not configure box-to-box redundancy when you:

  Expect the behavior of the CSSs to be active-active (both CSSs processing flows). Use VIP redundancy instead.

  Cannot configure a dedicated FE link between the CSSs.

  Require the connection of a Layer 2 device between the redundant CSS peers.

• Question 512:

  

  Refer to the exhibit. Which statement describes the expected behavior when the IP phone, registered to a Cisco Unified Communications Manager version 11.0 server, dials 83319235?

  A. The call must wait for inter-digit timeout before being routed toward the gateway, unless the "Do Not Wait for Interdigit Timeout on Subsequent Hops" is set on all of the listed translation patterns.
  B. The call fails because there are no matching patterns
  C. The call must wait for inter-digit timeout before being routed toward the gateway, unless the "Do Not Wait for Interdigit Timeout on Subsequent Hops" is set on all of the listed translation patterns and route patterns.
  D. The call is routed immediately toward the gateway without inter-digit timeout.
  E. The call must wait for inter-digit timeout before being routed toward the gateway, unless the "Do Not Wait for Interdigit Timeout on Subsequent Hops" is set on all of the listed route patterns.
  B. The call fails because there are no matching patterns

• Question 513:

  Which protocol does the Cisco Prime LAN Management Solution application use to communicate with Cisco EnergyWise domain members?

  A. UDP broadcast
  B. Cisco Discovery Protocol
  C. UDP unicast
  D. TCP
  E. multicast
  D. TCP

  ---

  Cisco Prime LMS 4.1 uses TCP port 43440.

• Question 514:

  Which two SCCP call signaling messages are sent by an IP phone to Cisco Unified Communications Manager? (Choose two.)

  A. SoftKeyEvent
  B. OpenReceiveChannelAck
  C. StartMediaTransmission
  D. SelectSoftKeys
  E. CloseReceiveChannel
  F. StopTone
  A. SoftKeyEvent
  B. OpenReceiveChannelAck

  ---

  This message indicates which soft key was pressed. Upon receipt of this message, CallManager invokes the action associated with the pressed soft key. For example, if Hold was the pressed soft key, CallManager places the active call on user hold. In some trace files you might see a soft key number without the corresponding description. The following list defines each soft key number.

• Question 515:

  Refer to the exhibit.

  

  A user is going through a series of dialing steps on a SIP Type B IP phone to call a SCCP IP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assume that the calling SIP phone is associated with a SIP dial rule with a pattern value of "2001".

  Which statement about how digits are forwarded to the Cisco Unified Communications Manager for further call processing is true?

  A. As each digit is pressed on the SIP IP phone, it is sent to the Cisco Unified Communications Manager in a SIP NOTIFY message as a KPML event.
  B. The SIP IP phone waits for the inter-digit timer expiry and then sends each digit to the Cisco Unified Communications Manager as a separate KPML event in a SIP NOTIFY message.
  C. As soon as the user selects the Dial soft key, the SIP IP phone forwards all digits to the Cisco Unified Communications Manager in a SIP INVITE message.
  D. As soon as the Dial soft key is selected, the SIP IP phone forwards the first digit in a SIP INVITE and the subsequent digits in SIP INFORMATION messages.
  E. The SIP IP phone waits for the inter-digit timer expiry, and then sends all digits to the Cisco Unified Communications Manager in a SIP INVITE message.
  C. As soon as the user selects the Dial soft key, the SIP IP phone forwards all digits to the Cisco Unified Communications Manager in a SIP INVITE message.

  ---

  References: https://supportforums.cisco.com/document/87236/working-concept-sccp-sip-phones-and-dial-rules.

• Question 516:

  In Cisco IOS routers, which chipset is the PVDM-12 DSP hardware based on?

  A. C542
  B. C549
  C. C5510
  D. C5421
  E. C5409
  B. C549

  ---

  NM-HDV has five SIMM sockets (called Banks) that hold the PVDM-12 cards. Each PVDM-12 card contains three TI 549 DSPs.

  References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/7x/uc7_0/media.html

• Question 517:

  Refer to the exhibit.

  

  Which ds0-group option should you select to send automated number identification information on outbound calls for this digital T1 voice circuit?

  A. eandm-fgd
  B. eandm-fgd
  C. fgd-eana
  D. eandm-delay-dial
  E. fgd-os
  C. fgd-eana

  ---

  EandM signaling is often the preferred option for CAS because it avoids glare, it provides answer/disconnect supervision and it can receive Automatic Number Identification (ANI) with FGD and send ANI with FGD-EANA. In other words, you can have 1 channel-group for incoming calls and 1 channel-group for outgoing calls.

• Question 518:

  Which Cisco Unified Contact Center Express script media step can invoke a VXML application to retrieve and play prompts on-demand from an off-box location?

  A. Play Prompt step
  B. Voice Browser step
  C. Menu step
  D. Recording step
  E. Simple Recognition step
  B. Voice Browser step

  ---

  CRA Voice Browser is fully integrated with the CRA Engine. You can use scripts designed in the CRA Editor to extend VoiceXML applications by providing ICD (Integrated Contact Distribution) call control and resource management. For example, you can use VoiceXML to build a speech dialog as a front end to collect information from the caller. You can then pass this information to the CRA script, and when the agent receives the call, the information collected by VoiceXML will be available. You use the Voice Browser step in the Media palette of the CRA Editor to invoke a VoiceXML application. You can use the bundled voicebrowser.aef script as an example for creating scripts that invoke VoiceXML. (You can create custom scripts to execute other steps in addition to VoiceXML.)

• Question 519:

  When the Cisco Unified Communications Manager service parameter "Auto Call Pickup Enabled" is selected, which two softkeys on an IP phone connect you to an incoming call? (Choose two.)

  A. Pickup
  B. Gpickup
  C. CallBack
  D. Select
  E. Join
  A. Pickup
  B. Gpickup

  ---

  Pickup softkey is used to receive a call that is ringing in another phone within the same pickup group and Gpickupsoftkey is used to receive calls that are ringing but that phone is another pickup group.

• Question 520:

  Refer to the exhibit.

  

  A user is performing a series of dialing steps on a SCCP IP phone (extension 1001) to call another SCCP IP phone (extension 2003). Both phones are registered to the same Cisco Unified Communications Manager cluster.

  Which user inputs are sent from the calling IP phone to the Cisco Unified Communications Manager, in the form of SCCP messages, after the user takes the phone off-hook? (The commas in the options are logical separators, not part of the actual user input or SCCP messages.)

  A. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 0, 3.
  B. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1,
  C. The IP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 2003 has been dialed.
  D. The IP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 201
  E. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1,
  B. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1,

  ---

  Because sccp phones send digits DIGIT-by-DIGIT i.e. it sends each digit in real time. Link:-https://supportforums.cisco.com/document/87236/working-concept-sccp-sip-phones-and-dial-rules