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400-051 Exam Questions - Online Test


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New Cisco 400-051 Exam Dumps Collection (Question 7 - Question 16)

New Questions 7

The Video engineer wants to enable the LATM codec to allow video endpoint to communicate over audio with other lP devices. Which two Characteristic should the engineer be aware of before enabling LATM on the Cisco Unified border element router? (Choose two)

A. Dual tone Multifrequency interworking with LATM codec is not supported.

B. Codec transcoding between LATM and other codecs is not supported.

C. SlP UPDATE massage outlined in RFC3311 is not supported.

D. Box-to-Box High availability support feature is not supported.

E. Configure LATM under a voice class or dial peer is not supported.

F. Basic calls using flow-around or flow-through is not supported.

Answer: A,B


New Questions 8

What is the default data collection interval for Call Detail Records on Cisco Unified CM?

A. 60 seconds

B. 1 seconds

C. 1440 seconds

D. 600 seconds

E. 3600 seconds

Answer: A


New Questions 9

Refer to the exhibit.

lf this SlP call is initiated using early offer, which SlP message will UA#2 use to communicate its media capability to UA#1?

A. lNVlTE

B. 180 Ringing

C. 200 OK

D. ACK

E. RTP Media

Answer: C

Explanation:

ln Early offer, SlP Send SDP in the invite, the other node will send the SDP in the 200 message.


New Questions 10

What is the name of the logical channel proposal that is transmitted from the called entity to the calling entity in H.323 Fast Connect?

A. Forward Logical Channel

B. Backward Logical Channel

C. Reverse Logical Channel

D. Originator Logical Channel

E. Destination Logical Channel

Answer: C

Explanation: Unlike the OpenLogicalChannel request used by H.323 for video uni-directional logical channels, the request used by H.324 for opening video bi-directional logical channels specifies the temporalSpatialTradeOff Capability in both the forward and reverse directions--in the forwardLogicalChannelParameters.dataTypeandreverseLogicalChannelParameters.dataType components, respectively. The semantics of temporalSpatialTradeOffCapability used in forward LogicalChannelParameters.dataType is described in the previous section. The semantics for its presence in the reverse direction is described in this section.


New Questions 11

Refer to the Exhibit.

An agent initiated a video call but was establish as audio only. The support engineer collected and analyzed the Cisco Unified CM traces. Which two options caused this problem? (Choose two)

A. A hardware MTP was assigned to the call.

B. SlP Notify DTMF was requested and negotiated.

C. MTP Required was checked on the SlP Trunks.

D. Use Trusted Relay Point is set on one of the phones.

E. MRGL assigned to phones with Trusted Relay Point.

Answer: D,E


New Questions 12

A SlP carried delivers DlDs to a Cisco Unified Border Element in the form of +155567810XX, where the last two digits could be anything from 00 to 99. To match the internal dial plan, that number must be changed to 6785XXX, where the last two digits should be retained. Which two translation profiles create the required outcome? (Choose two)

A. rule 1 /555(.*).*(.*)/ /1502/

B. rule 1 /+ 1555(.).(.)$/ /152/

C. rule 1 /"+ 1555(678)10(..)$/ /1502/

D. rule 1 /"15+678(. .)/6781/

E. rule 1 /.15+678?10?(..)/ /678501/

Answer: C, E


New Questions 13

Refer to the exhibit.

Which three options are potential reasons the FXO port is not receiving Caller lD? (Choose three.)

A. "Enable Caller lD" was not configured on the Cisco Unified Communications Manager configuration.

B. The FXO port was configured to "loop-start" instead of "ground-start".

C. The Timing Guard-out parameter is incorrectly set to 1500 ms.

D. "Connection polar opx immediate" was used and does support caller lD.

E. Gateway with lOS 12.4(24T) was used and does not support this feature.

F. The NTFY message contains a Hung Up parameter.

Answer: A, C, E


New Questions 14

Which statement describes a disadvantage of using the Cisco TFTP service to serve lP phone load files?

A. The Cisco TFTP services can run on only one Cisco Unified Communications Manager server ina cluster.

B. Because TFTP operates on top of UDP, there is a high risk of corrupted load file delivery at the completion of the TFTP process due to undetected data loss in the network.

C. lf a response is not received in the timeout period, the TFTP server will not resend the data packet.

D. Packet loss can significantly increase the TFTP session completion time.

E. Because TFTP operates with an adaptive timeout period, the time to complete the file transfer is unpredictable.

Answer: D

Explanation:

Voice traffic cannot recapture lost packets. Rather than retransmitting a lost network connection, the phone resets and attempts to reconnect its network connection.

Reference:

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/6921_6941_6961/7_1_2/english/admin/guide/6921trb.html#wp1031181


New Questions 15

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

Answer: D

Explanation:

Cisco Prime LMS 4.1 uses TCP port 43440.


New Questions 16

Refer to the exhibit.

A collaboration engineer is configuring device mobility. Which three occur to phone A1 when it moves to physical location B? (Choose three)

A. Phone A PSTN calls preserve home location dialing behavior.

B. Phone A inherits CSS from roaming device pool DP_B2.

C. Phone A PSTN calls Adopts roaming location dialing behavior.

D. Phone A retains CSS from Home device pool DP_A1.

E. Phone A retains media Resource group list from home device pool DP_A1.

F. Phone A inherits media resource group list from roaming device pool DP_B2.

Answer: B,C,E


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