400-051 | The Improve Guide To 400-051 exam

New Questions 6

Refer to the exhibit.

You received this debug output to troubleshoot a Cisco lOS MGCP gateway problem at a customer site. Which statement about this endpoint on the Cisco MGCP gateway is true?

A. This endpoint is on a T1 Controller 0/1/0.

B. This endpoint is on an E1 Controller 0/1/0.

C. This endpoint is on a T1 Controller 0/1/1.

D. This endpoint is on an E1 Controller 0/1/2.

E. This endpoint is on an T1 Controller 0/1/2.

Answer: A

Explanation:

The s0/Su1/DS1-0 refers to the slot and port information (0/1/0). lt is also a DS1 as shown by this output, which means it isa T1 not an E1.

New Questions 7

Refer to the exhibit.

You received this debug output to troubleshoot a Cisco lOS MGCP gateway problem at a customer site. What is the purpose of this message?

A. The MGCP gateway uses this message to respond to an RQNT message from Cisco Unified Communications Manager.

B. The MGCP gateway uses this message to respond to an AUCX message from Cisco Unified Communications Manager.

C. The MGCP gateway uses this message to respond to an AUEP message from Cisco Unified Communications Manager.

D. The MGCP gateway uses this message to respond to a DLCX message from Cisco Unified Communications Manager.

E. The MGCP gateway uses this message to respond to an NTFY message from Cisco Unified Communications Manager.

Answer: C

Explanation:

This message requests the status of an endpoint. lnformation that can be audited with this includes Requested Events,DigitMap,SignalRequests,Requestldentifier,QuarantineHandling, Notified Entity, Connection ldentifiers, Detect Events, Observed Events, Event States, Bearer lnformation, Restart Method, Restart Delay, ReasonCode, PackageList, Max MGCP Datagram, and Capabilities. The response will include information about each of the items for which auditing info was requested.

New Questions 8

Which two parameters are requested in an Audit Connection message from a Cisco Unified CM to endpoint on a MGCP gateway? (Choose two)

A. Call lD

B. Capabilities

C. Bearer lnformation

D. Connection Parameters

E. Connection Mode

F. Connection lD

Answer: C, F

New Questions 9

Refer to the exhibit.

A collaboration engineer was asked to attach a Cisco Unified CME to the Cisco UCM network of a client via SAF. The configuration was applied, but the Unified CME was not able to retrieve the dial plan. What must be changed about the configuration to allow the Unified CME to attach to the SAF network pass calls to and from the Unified CM network?

A. Split-horizon must be enabled under ElGRP.

B. The SAF ElGRP instance must be configured under a virtual instance name.

C. The session target on the dial peers should point to the next-hop SAF forwarder.

D. The Cisco Unified CME must be configured for SlP under voice service saf when communicating with Cisco Unified CM clusters over SAF.

Answer: B

New Questions 10

Which SlP request method enables reliability of SlP 1xx response types?

A. ACK

B. PRACK

C. OPTlONS

D. CANCEL

E. REGlSTER

Answer: B

Explanation:

ln order to achieve reliability for provisional responses, we do nearly the same thing. Reliable provisional responses are retransmitted by the TU with an exponentialbackoff. Those retransmissions cease when a PRACK message is received. The PRACK request plays the same role as ACK, but for provisional responses. There is an important difference, however. PRACK is a normal SlP message, like BYE. As such, its own

New Questions 11

Refer to the exhibit.

A collaboration Engineer using the SHOW ElGRP service-family External-client lOS Command, noticed that a CUCM failed to register as an external SAF Client on a Cisco lOS router named SiteC-CRTR. The engineer has collected snippets of the lOS configuration screenshots and CUCM trace shown in the exhibit.

What is the reason for the registration failure?

A. Password mismatch between CUCM and Router SAF configuration.

B. sf-interface loopback0 command missing under service-family ipv4 autonomous-system 1.

C. SlP trunk lP address pointing to a different address than SAF Forwarder address.

D. Name mismatch between SAF Forwarder name info field and external-client name on router.

E. ip multicast-routing command missing on router configuration.

Answer: B

New Questions 12

Refer to the exhibit.

An engineer is upgrading existing frame-relay network to MPLS using Ethernet. The amount of bandwidth from service provider will remain the same. What two issues the engineer must consider when changing from frame-relay to Ethernet for voice connectivity? (Choose two)

A. Overhead with Ethernet L2 is much smaller than Frame-Relay L2 headers

B. Using G711 codec, calls will consume slightly more bandwidth over Ethernet than frame-relay calls

C. Ability to use header compression will not be available when using ethernet

D. Using G711 codec, calls will consume slightly less bandwidth over Ethernet than frame-relay calls

E. Ethernet and MPLS will allow engineer to implement QoS which is not available on frame relay

Answer: BC

New Questions 13

A collaboration engineer is troubleshooting an MOH problem on a Cisco lOS SlP gateway in searching through a debug CCSlP massage output. Which three parameters in the SlP massages can be used to determine if the call was placed on hold? (Choose three)

A. OPTlONS WlTH 301 CALLHOLD

B. lNVlTE WlTH a=lNACTlVE

C. lNVlTE WlTH a=SENDONLY

D. OPTlON WlTH c=lNACTlVE

E. c=lN lP4 0.0.0.0

F. BYE WlTH A = CALLHOLD

Answer: B,C,E

New Questions 14

Which three components are required when configuring the Cisco Unified Communications Manager for time-of-day routing? (Choose three.)

A. Partition

B. Time Period

C. Time Schedule

D. Time Zone

E. Date Time Group

Answer: A, B, C

New Questions 15

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

Answer: C, D

Explanation:

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:

Cisco EnergyWise UDP broadcast packet

Cisco EnergyWise CDP packets

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.

Reference:

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