Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 91:

  Refer to the exhibit.

  

  A collaboration engineer is troubleshooting a cluster that has been configured to use RSVP. The calls are being rejected and the caller receives a busy tone. What is the root cause of this problem?

  A. The RSVP Agents are only using an Ipv6 address.
  B. IP Addressing mode preference for signaling is set to use System Default.
  C. RSVP relationship between Main and Remote is set to Mandatory
  D. IP Addressing Mode is set to use Ipv4 and Ipv6
  A. The RSVP Agents are only using an Ipv6 address.

• Question 92:

  Which option is a mandatory softkey for a Cisco IP 7965, running SCCP firmware, in the Off Hook call state?

  A. Redial
  B. NewCall
  C. EndCall
  D. CfwdAll
  E. There is no mandatory softkey in the Off Hook call state.
  E. There is no mandatory softkey in the Off Hook call state.

• Question 93:

  Refer to the exhibit. IP phone A makes a call to IP phone B and an RTP voice stream is successfully established between the endpoints. Which option describes how to accomplish this call on phones with incompatible IP addressing versions?

  

  A. Enable Alternative Network Address Types
  B. Set the Common Device Configuration to Ipv4 and IPv6
  C. Assign a Media Resource Group with available MTPs
  D. Configure the IP Addressing Mode Preference for Signaling to IPv4
  C. Assign a Media Resource Group with available MTPs

• Question 94:

  Refer to the exhibit.

  

  Which certificate file contains the private key used to sign the TFTP configuration file for download authentication with Initial Trust List enabled IP phones?

  A. PUB.pem tomcat-trust trust-cert
  B. SUB.pem CallManager-trust trust-cert
  C. CAPF.pem CAPF cert
  D. TVS.pem TVS cert
  E. CallManager.pem CallManager cert
  E. CallManager.pem CallManager cert

• Question 95:

  Which Cisco Unified Communications Manager partition will be associated with a directory URI that is configured for an end user with a primary extension?

  A. null
  B. none
  C. directory URI
  D. default
  E. any partition that the Cisco Unified Communications Manager administrator desires
  C. directory URI

  ---

  Cisco Unified Communications Manager supports dialing using directory URIs for call addressing. Directory URIs look like email addresses and follow the username@host format where the host portion is an IPv4 address or a fully qualified domain name. A directory URI is a uniform resource identifier, a string of characters that can be used to identify a directory number. If that directory number is assigned to a phone, Cisco Unified Communications Manager can route calls to that phone using the directory URI. URI dialing is available for SIP and SCCP endpoints that support directory URIs.

• Question 96:

  A CUCM engineer has deployed Type SIP Phones on a remote site and no SIP dial rules were deployed for these phones. How will CUCM receive the DTMF after the phone goes off- hook and the buttons are pressed?

  A. Each digit will be received by CUCM in a SIP NOTIFY message as soon as they are pressed.
  B. The first digit will be received in a SIP INVITE and subsequent digits will be received using notify MASSAGE as soon as they are pressed.
  C. Each digit will be received by CUCM in a SIP INVITE as soon as the dial softkey has been pressed.
  D. All digits will be received by CUCM in a SIP INVITE as soon as the dial softkey has been pressed
  B. The first digit will be received in a SIP INVITE and subsequent digits will be received using notify MASSAGE as soon as they are pressed.

• Question 97:

  When DSP oversubscription occurs on a Cisco IOS router using DSP modules that are based on the C5510 chipset, what will happen when an analog phone connected to a FXS port goes off-hook?

  A. A fast busy tone will be played.
  B. A slow busy tone will be played.
  C. A network busy tone will be played.
  D. A dial tone will be played, but digits will not be processed.
  E. No tone will be played.
  E. No tone will be played.

  ---

  When DSP oversubscription occurs for both analog ports and digital ports, except PRI and BRI. FXO signaling and application controlled endpoints are not supported. This feature does not apply to insufficient DSP credits due to mid-call codec changes (while a call is already established).

• Question 98:

  Refer to the exhibit.

  

  A carrier delivers a SIP call to Cisco Unified CM through a Cisco Unified border Elements with the Invite destination different than "To" field. The Unified Cm Administration engineer sees that the calls go to the Invite destination instead of the "To" field Unified CM.

  Which option shows how the engineer corrected that problem in the Cisco Unified border Elements router?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  A. Option A

• Question 99:

  Which TFTP server address selection option has the highest precedence on Cisco SCCP IP phones using firmware release 8.0(4) or later?

  A. a manually configured alternate TFTP option on the phone
  B. the first Option 150 IP address received from the DHCP server
  C. the first Option 66 dotted decimal IP address received from the DHCP server
  D. the first IPv6 TFTP Server address received from the DHCP server
  E. the value of next-server IP address in the boot-up process
  A. a manually configured alternate TFTP option on the phone

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  References:

• Question 100:

  Which parameter in an RQNT message is used by a Cisco Unified CM to request a Cisco IOS MGCP gateway to report an on-hook event on an analog endpoint?

  A. Detect Events
  B. Connection Mode
  C. Requested Events
  D. Event States
  E. Observed Events
  C. Requested Events