Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 561:

  Which SIP header is used by Cisco Unified Communication Manager to support the Redirected Number ID Service?

  A. replaces
  B. RPID
  C. diversion
  D. join
  E. P-charging-vector
  C. diversion

  ---

  CUCM uses sip diversion header in INVITE message to carryout Redirected Number ID service.

  References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/9_0_1/ccmsys/CUCM_BK_CD2F83FA_00_cucm-system-guide-90/CUCM_BK_CD2F83FA_00_system-guide_chapter_0101000.html#CUCM_TP_R3F173A9_00

• Question 562:

  To which SIP response category does 301 Moved Permanently belong?

  A. Provisional
  B. Successful
  C. Redirection
  D. Client Failure
  E. Server Failure
  C. Redirection

  ---

  The 301 response from the Web server should always include an alternative URL to which redirection should occur. If it does, a Web browser will immediately retry the alternative URL. So you never actually see a 301 error in a Web browser, unless perhaps you have a corrupt redirection chain e.g. URL A redirects to URL B which in turn redirects back to URL A. If your client is not a Web browser, it should behave in the same way as a Web browser i.e. immediately retry the alternative URL.

• Question 563:

  Refer to the exhibit. Which description of a User Agent Server that sends this message this message is true?

  

  A. The UAS sends this message in response to an earlier ACK received.
  B. It is not possible for the UAS to send this message.
  C. The UAS sends this message in response to an earlier PRACK received.
  D. The UAS sends this single message in response to an earlier INVITE that contains PRACK.
  E. The UAS sends this message in response to an earlier INVITE received.
  C. The UAS sends this message in response to an earlier PRACK received.

• Question 564:

  Which method does a Cisco Unified 9971 phone use to send keep-alive messages to Cisco Unified Communications Manager?

  A. SIP NOTIFY with Event set to keep-alive
  B. SIP OPTIONS
  C. SIP REGISTER with Expires set to zero
  D. SCCP StationRegister
  E. SCCP StationServerReq
  C. SIP REGISTER with Expires set to zero

  ---

  Phone registers with primary and establishes keepalive connection with secondary.

  Expires = 0 keepalive mechanism allows Cisco SIP Phones to more closely resemble the failover / fallback behavior of SCCP.

• Question 565:

  Which two categories are state-based greetings on Cisco Unity Express? (Choose two.)

  A. Meeting
  B. Vacation
  C. Internal
  D. Closed
  E. Alternate
  F. Extended Absence
  C. Internal
  D. Closed

  ---

  Beginning in version 7.1, you can configure multiple greetings. These greetings fall into the following three categories: ?Standard greetings ?Alternate greetings This category includes the following types of greetings: ?Alternate ?Meeting ?Vacation ?Extended absence ?State-based greetings: This category includes the following types of greetings: ?Busy ?Closed ?Internal

  References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/unity_exp/administrator/AA_and_VM/guide/vmadmin_book/vmconfig.html

• Question 566:

  The Cisco Unified CM 9.0 publisher server in a five-node cluster failed to boot after a power outage. Which four configuration modifications can still be made on the remaining nodes? (Choose four.)

  A. Call Forward All
  B. Device Security Profile
  C. PIN Reset
  D. Add a new DN
  E. Extension Mobility Login
  F. Busy Trigger
  G. Message Waiting Indication
  H. Device Mobility
  A. Call Forward All
  E. Extension Mobility Login
  G. Message Waiting Indication
  H. Device Mobility

• Question 567:

  Refer to the exhibit.

  

  Which SIP response message should the TGW send if it cannot process the tunneled QSIG messages from the OGW?

  A. 405 Method Not Allowed
  B. 406 Not Acceptable
  C. 412 Conditional Request Failed
  D. 415 Unsupported Media Type
  E. 485 Ambiguous
  D. 415 Unsupported Media Type

  ---

  Fallback from QSIG Tunneling

  In some situations, QSIG tunneling will fail or need to fall back:

  ?Remote party does not support multipart MIME body: In this case, the remote side sends a";415 Media Not Supporte"; response. Upon receiving this response, OGW will fall back to normal mode and send an INVITE request without any

  tunneled content. This procedure helps ensure that at least the basic call will work normally.

  ?Remote party does not understand tunneled content: If the remote side does not support the tunneled content, it should drop the tunneled content and continue as a normal call; because all essential parameters are present in the original

  INVITE, the call can go through without the need for fallback.

  References: http://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/empowered-branch-solution/white_paper_c11_459092.html

• Question 568:

  Refer to the Cisco Unified Communications Manager configuration descriptions below. When a call made from Phone A Line 1 to 30001, using Line1, which route pattern is chosen by the Cisco Unified Communications Manager?

  Phone A device calling search space is CSS_Dev_A.

  Phone A Line 1 is assigned calling search space CSS_Line_A.

  Route Pattern 30XXX is placed in Partition Part_1.

  Route Pattern 3XXXX is placed in Partition Part_2.

  Route Pattern 300XX is placed in Partition Part_3.

  CSS_Dev_A contains partition(s) Part_1.

  CSS_Line_A contains partition(s) Part_2.

  A. 300XX in partition Part_3
  B. 30XXX in partition Part_1
  C. No match exists and the user receives a reorder tone
  D. 3XXXX in partition Part_2
  B. 30XXX in partition Part_1

• Question 569:

  Which three services must be stopped to change the IM and Presence service default domain setting of DOMAIN.NOT.SET? (Choose three.)

  A. Cisco XCP Router
  B. Cisco Intercluster Sync Agent
  C. Cisco XCP Authentication Service
  D. Cisco SIP Proxy
  E. Cisco Presence Engine
  F. Cisco AXL Web service
  A. Cisco XCP Router
  D. Cisco SIP Proxy
  E. Cisco Presence Engine

  ---

  Change the Domain Value

  Follow this procedure if you want to change the domain value (from one valid domain value to another valid IP proxy domain value).

  This procedure is applicable if you have a DNS or non-DNS deployment.

  Procedure

  Step 1 Stop the Cisco SIP Proxy, Presence Engine and XCP Router services on IM and Presence on all nodes in your cluster.

  Step 2 On the publisher node, perform the following steps to configure the new domain value:

  a.

  Select IM and Presence Administration > System > Cluster Topology.

  b.

  In the right pane, select Settings.

  c.

  Configure the Domain Name value with the new domain.

  a.

  Select IM and Presence Administration > System > Service Parameters, and select the Cisco SIP Proxy service.

  b.

  Configure the Federation Routing IM and Presence FQDN with the new domain.

  c.

  You will be prompted to confirm these configuration changes. Select OK for both prompts, and then select Save.

  Step 3 On all nodes in the cluster, use this CLI command to set the new domain:

  set network domain

  This CLI command invokes a reboot of the servers.

  Step 4 On all nodes in the cluster, manually start the Cisco Presence Engine and Cisco XCP Router services after the reboot is complete (if required).

  Step 5 Manually regenerate all certificates on each node in the cluster.

  Reference: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/im_presence/ip_address_hostname/9_0_1/IM_P_IPChange/sip_domain.html

• Question 570:

  Which two mechanisms does Cisco EnergyWise use for neighbor discovery? (Choose two.)

  A. multicast
  B. LLDP-MED
  C. UDP broadcast
  D. Cisco Discovery Protocol
  E. TCP
  C. UDP broadcast
  D. Cisco Discovery Protocol

  ---

  Cisco EnergyWise Neighbor Discovery Process The Cisco EnergyWise neighbor discovery process is the mechanism by which domain members discover each other and populate their Cisco EnergyWise neighbor tables. Cisco EnergyWise queries can subsequently be distributed to all domain members using the neighbor relationships to monitor and control the power usage of devices within a domain. Cisco EnergyWise domain members automatically discover their neighbors through one of two mechanisms: UDP broadcast packets are automatically sent out switch ports which support Cisco EnergyWise, regardless of whether the interfaces are configured with the no energywise interface-level command. CDP packets are sent when CDP is configured for the switch ports.

  References: http://www.cisco.com/en/US/docs/solutions/Enterprise/Borderless_Networks/Energy_Management/energywisedg.html?referring_site=smartnavRD#wp555927