Cisco 400-051 Online Practice Questions and Exam Preparation

Cisco 400-051 Online Questions & Answers

• Question 431:

  Tom Lee is an active user in a Cisco Unified CM deployment with fully functional LDAP synchronization and authentication to an Active Directory. Daily resynchronization is set at 11:00 pm. At 8:00 am on March 1st 2014, this user was deleted from the AD. What is the status of this user in the Unified CM database at 1:00 am on March 2nd 2014?

  A. active
  B. inactive
  C. delete pending
  D. awaiting authorization
  E. permanently deleted
  B. inactive

• Question 432:

  In a Cisco Unified Communications Manager design where +E.164 destinations are populated in directory entries, which call routing practice is critical to prevent unnecessary toll charges caused by internal calls routed through the PSTN?

  A. forced on-net routing
  B. automated alternate routing
  C. forced authorization codes
  D. client matter codes
  E. tail-end hop-off
  A. forced on-net routing

  ---

  Forced On-Net Routing It is not uncommon for the dialing habits for on-net/inter-site and off-net destinations to use the same addressing structure. In this case the call control decides whether the addressed endpoint, user, or application is on-net or off-net based on the dialed address, and will treat the call as on-net or off-net, respectively. Figure 14-4 shows an example of this forced on-net routing. All four calls in this example are dialed as 91 plus 10 digits. But while the calls to +1 408 555 2345 and +1 212 555 7000 are really routed as off-net calls through the PSTN gateway, the other two calls are routed as on-net calls because the call control identifies the ultimate destinations as on-net destinations. Forced on-net routing clearly shows that the dialing habit used does not necessarily also determine how a call is routed. In this example, some calls are routed as on-net calls even though the used PSTN dialing habit seems to indicate that an off-net destination is called. Figure 14-4 Forced On-Net Routing Forced on-net routing is especially important if dialing of +E.164 destinations from directories is implemented. In a normalized directory, all destinations are defined as +E.164 numbers, regardless of whether the person that the number is associated with is internal or external. In this case forced on-net routing is a mandatory requirement to avoid charges caused by internal calls routed through the PSTN.

  

  http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab09/clb09/dialplan.html

• Question 433:

  Which software component in Cisco Meeting Server deployment supports clustering for scalability and resilience?

  A. Web Admin
  B. Call Bridge
  C. Web Bridge
  D. XMPP Server
  E. TURN Server
  F. Database
  B. Call Bridge

• Question 434:

  Company ABC is planning to migrate from Cisco MCS-hosted Cisco Unified Communications Manager applications to Cisco UC on UCS B-Series servers. Which statement about external media supportability is true for this migration?

  A. The Cisco Music on Hold USB audio sound card on the MCS servers will continue to work on the USB ports on the UCS server.
  B. The Cisco Music on Hold USB audio sound card on the MCS servers will continue to work through the USB ports on the Cisco UCS server KVM dongle cable adaptor connected to the front of the UCS server.
  C. The Cisco Music on Hold USB audio sound card on the MCS servers will not work on the UCS server.
  D. The Cisco Music on Hold USB audio sound card can be mapped to a virtual USB port on a VMware virtual machine on the UCS server.
  E. The Cisco Music on Hold USB audio sound card can be mapped to a virtual serial port on a VMware virtual machine on the UCS server.
  C. The Cisco Music on Hold USB audio sound card on the MCS servers will not work on the UCS server.

• Question 435:

  What is the maximum number of call-processing subscribers in a standard deployment of a Cisco Unified Communications Manager Session Management Edition cluster?

  A. 3
  B. 4
  C. 5
  D. 8
  E. 16
  D. 8

  ---

  There is no deployment difference between CUCM and CUCM session management Edition cluster. The only difference is that CUCM SME is designed to support a large number of trunk to trunk connections. Thus, 8 subscribers.

• Question 436:

  Under which three conditions will a Cisco 9971 IP Phone request the "xmldefault.cnf.xml" file from a TFTP server in a Cisco Unified CM cluster? (Choose three)

  A. The phone is registered to the CUCM cluster but need to update its firmware
  B. The phone is attempting to register to the CUCM cluster for the first time
  C. Auto-registration is disabled on CUCM cluster
  D. The phone has not yet been defined in the CUCM database
  E. The phone is attempting to change from SIP firmware to SCCP firmware
  F. Auto-registration is enabled on CUCM cluster
  B. The phone is attempting to register to the CUCM cluster for the first time
  D. The phone has not yet been defined in the CUCM database
  F. Auto-registration is enabled on CUCM cluster

• Question 437:

  Refer to the exhibit.

  

  An engineer is working with globalization and has these requirements:

  -the ANI to be presented in the E.164 format to the phone on the Cisco Unified Communications Manager

  -allow redialing from the call history without manually manipulating the digit string

  Which three configuration steps in Cisco Unified Communications Manager are needed to meet these requirements? (Choose three.)

  A. Set the subscriber number prefix with +4940
  B. Set the prefix digits with 0 and calling number type subscriber
  C. Set the national prefix with +4940
  D. Set the prefix digits with 0 and calling number type national.
  E. Set the calling-party transformation pattern with /+4940.!, and discard digits preDot.
  F. Set the calling-party transformation pattern with /+4940.!, and discard digits preAt.
  A. Set the subscriber number prefix with +4940
  B. Set the prefix digits with 0 and calling number type subscriber
  E. Set the calling-party transformation pattern with /+4940.!, and discard digits preDot.

• Question 438:

  Which configuration component in Cisco Unified Communications Manager Enhanced Location Call Admission Control is designated to participate directly in intercluster replication of location, links, and bandwidth allocation data?

  A. an active member of a Location Bandwidth Manager Group
  B. a member of a Location Bandwidth Manager Hub Group
  C. a standby member of a Location Bandwidth Manager Group
  D. all members of a Location Bandwidth Manager Group
  E. a shadow member of a Location Bandwidth Manager Hub Group
  B. a member of a Location Bandwidth Manager Hub Group

  ---

  A Location Bandwidth Manager (LBM) service that has been designated to participate directly in intercluster replication of fixed locations, links data, and dynamic bandwidth allocation data. LBMs assigned to an LBM hub group discover each other through their common connections and form a fully-meshed intercluster replication network. Other LBM services in a cluster with an LBM hub participate indirectly in intercluster replication through the LBM hubs in their cluster.

• Question 439:

  In Cisco IOS routers that use low latency queuing, which algorithm is used to presort traffic going into the default queue?

  A. first-in, first-out
  B. last-in, first-out
  C. weighted round robin
  D. fair queuing
  E. random processing
  D. fair queuing

  ---

  WFQ is a flow-based queuing algorithm used in Quality of Service (QoS) that does two things simultaneously: It schedules interactive traffic to the front of the queue to reduce response time, and it fairly shares the remaining bandwidth between high bandwidth flows. A stream of packets within a single session of a single application is known as flow or conversation. WFQ is a flow-based method that sends packets over the network and ensures packet transmission efficiency which is critical to the interactive traffic. This method automatically stabilizes network congestion between individual packet transmission flows.

• Question 440:

  Refer to the exhibit.

  

  What happens to the USB e-token after the administrator fails to enter the correct password at the next attempt?

  A. The token is locked for five days, after which the retry counter resets.
  B. The token is locked until unlocked by Cisco TAC.
  C. The token is locked until Cisco CTL Client is uninstalled and reinstalled on the client PC.
  D. The token cannot be used on the same client PC again. It can be used with another Cisco CTL Client on a different PC.
  E. The token is locked forever.
  E. The token is locked forever.

  ---

  Note here that the password has been incorrectly entered 14 times. The eToken software warns that only 1 more attempts are allowed before the token is permanently locked (destroyed). A successful password entry resets this counter back to 15