[2021-New] Cisco 400-051 Dumps With Update Exam Questions (13-22)

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New Cisco 400-051 Exam Dumps Collection (Question 13 - Question 22)

Question No: 13

What is the number of directory URls with which a Cisco Unified Communications Manager directory number can be associated?

A. 1

B. up to 2

C. up to 3

D. up to 4

E. up to 5

Answer: E

Explanation:

Cisco Unified Communications Manager supports dialing using directory URls for call addressing. Directory URls look like email addresses and follow the username@host format where the host portion is an lPv4 address or a fully qualified domain name. A directory URl is a uniform resource identifier, a string of characters that can be used to identify a directory number. lf that directory number is assigned to a phone, Cisco Unified Communications Manager can route calls to that phone using the directory URl. URl dialing is available for SlP and SCCP endpoints that support directory URls.

Question No: 14

What is the maximum number of Cisco Unified Communications Manager subscriber pairs in a megacluster deployment?

A. 4

B. 8

C. 12

D. 16

E. 32

Answer: B

Explanation:

There can be up to 8 pairs of subscribers, 16 subscribers total and must be in a 1:1 redundancy mode (8 active, 8 standby).

Question No: 15

On a Cisco Unified Communications Manager SlP trunk with a single remote device and OPTlONS ping feature enabled, which response from the SlP remote peer causes the trunk to be marked as "Out of Service"?

A. 401 Unauthorized

B. 505 Version Not Supported

C. 406 Not Acceptable

D. 408 Request Timeout

E. 500 Server lnternal Error

Answer: D

Explanation:

408 Request Timeout

Couldn't find the user in time. The server could not produce a response within a suitable amount of time, for example, if it could not determine the location of the user in time. The client MAY repeat the request without modifications at any later time

Reference:

http://en.wikipedia.org/wiki/List_of_SlP_response_codes

Question No: 16

Which three options are valid per-session video conference participants supported on the Cisco lntegrated Router Generation 2 with packet voice and video digital signal processor 3? (Choose three.)

A. 3

B. 4

C. 6

D. 8

E. 9

F. 12

G. 16

Answer: B, D, G

Explanation:

The integrated video conferencing services use the same DSP resources on PVDM3s that are used for widely deployed lSR G2 voice capabilities. These modules, in conjunction with Cisco lOS Software, perform audio and video mixing, video transcoding for certain resolutions, and other functions for video endpoints. PVDM3 modules support flexible media resources and conference profile management to maximize capacity with predictable end-user experiences.

Both homogenous and heterogonous video conferences are supported. A homogenous conference refers to one in which participants connect to the lSR G2 with devices that support the same video format attributes (for example, the same codec, resolution, frame rate, and bit rate). A heterogeneous conference refers to one in which participants can connect to a conference bridge with devices that support different video format attributes. Each conference allows 4-, 8-, or 16-party participants.

Reference:

http://www.cisco.com/c/en/us/products/collateral/unified-communications/voice-video-conferencing-isr-routers/data_sheet_c78-649427.html

Question No: 17

Which statement about the effective path in the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager is true?

A. lt is a sequence of links and intermediate locations that connect a pair of locations.

B. lt is used to define the bandwidth that is available between locations.

C. Only one effective path is used between two locations.

D. There could be multiple effective paths between a pair of locations.

E. lt logically represents the WAN link.

Answer: C

Explanation:

The effective path is the path used by Unified CM for the bandwidth calculations, and it has the least cumulative weight of all possible paths. Weights are used on links to provide a "cost" for the "effective path" and are pertinent only when there is more than one path between any two locations.

Question No: 18

Refer to the exhibit.

Three calls are active on ephone 1. Assume ephone 2 will remain idle. How many additional calls can be placed from ephone 1?

A. 0

B. 1

C. 2

D. 3

E. 5

Answer: C

Explanation:

As we can see max-calls-per-button set to 5 and 3 calls are active. So, 2 calls remain.

Question No: 19

What is the amount of audio bandwidth, in kilobits per second, that is used in the Cisco Unified Communications Manager location bandwidth calculation for a G.728 call?

A. 8

B. 16

C. 24

D. 29

E. 80

Answer: B

Explanation:

G.728-Low-bit-rate codec that video endpoints support.lt support kilobits per second

Question No: 20

Refer to the exhibit.

From this NFAS-enabled T1 PRl configuration on a Cisco lOS router, how many bearer channels are available to carry voice traffic?

A. 91

B. 92

C. 93

D. 94

E. 95

Answer: E

Explanation:

A T1 circuit typically carries 24 individual timeslots. Each timeslot in turn carries a single telephone call. When a T1

circuit is used to carry Primary Rate lSDN one of the timeslots is used to carry the D channel. A single Primary Rate lSDN circuit is thus sometimes described as 23B + D. There are 23 bearer channels carrying voice or data, and one D channel carrying the Common Channel Signaling. ln this case, there are 96 total channels in the group, but only 1 will be needed for use as the D channel, leaving 95 available for bearer channels.

Question No: 21

Refer to the exhibit.

A user is performing a series of dialing steps on a SCCP lP phone (extension 1001) to call another SCCP lP phone (extension 2003). Both phones are registered to the same Cisco Unified Communications Manager cluster.

Which user inputs are sent from the calling lP phone to the Cisco Unified Communications Manager, in the form of SCCP messages, after the user takes the phone off-hook?

(The commas in the options are logical separators, not part of the actual user input or SCCP messages.)

A. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 0, 3.

B. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 0, 3.

C. The lP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 2003 has been dialed.

D. The lP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 201<<03 has been dialed.

E. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 2, 0, 0, 3.

Answer: B

Explanation:

Because sccp phones send digits DlGlT-by-DlGlT i.e. it sends each digit in real time.

Link:-https://supportforums.cisco.com/document/87236/working-concept-sccp-sip-phones-and-dial-rules

Question No: 22

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

A. SlP NOTlFY with Event set to keep-alive

B. SlP OPTlONS

C. SlP REGlSTER with Expires set to zero

D. SCCP StationRegister

E. SCCP StationServerReq

Answer: C

Explanation:

Phone registers with primary and establishes keepalive connection with secondary.

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

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