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400-051 Exam Questions - Online Test


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New Cisco 400-051 Exam Dumps Collection (Question 2 - Question 11)

Question No: 2

What does a comma accomplish when it is used in a SlP Dial Rule pattern that is associated with a Cisco 9971 lP Phone that is registered to Cisco Unified Communications Manager?

A. lt inserts a 500-millisecond pause between digits.

B. lt causes the phone to generate a secondary dial tone.

C. lt is a delimiter and has no significant dialing impact.

D. lt indicates a timeout value of 5000 milliseconds.

E. lt is an obsolete parameter and will be ignored.

Answer: B

Explanation:

Comma is accepted in speed dial as delimiter and pause. -Comma used to delineate dial string, FAC, CMC, and post connect digits For post connect digits, commas insert a 2 second delay Commas may be duplicated to create longer delays.


Question No: 3

Assume 18 bytes for the Layer 2 header and a 10-millisecond voice payload, how much bandwidth should be allocated to the strict priority queue for three VolP calls that use a G.722 codec over an Ethernet network?

A. 331.2 kb/s

B. 347.8 kb/s

C. 261.6 kb/s

D. 274.7 kb/s

E. 238.4 kb/s

Answer: A

Explanation:

Reference: http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080094ae2.shtml


Question No: 4

Which statement describes the key security service that is provided by the TLS Proxy function on a Cisco ASA appliance?

A. lt provides interworking to ensure that external lP phone traffic is encrypted, even if the rest of the system is unencrypted.

B. lt only applies to encrypted voice calls where both parties utilize encryption.

C. lt manipulates the call signaling to ensure that all media is routed via the adaptive security appliance.

D. lt enables internal phones to communicate with external phones without encryption.

E. lt protects Cisco Unified Communications Manager from rogue soft clients and attackers on the data VLAN.

Answer: B

Explanation:

TLS Proxy is typically deployed in front of Cisco Unified Communications Manager and other unified communications application servers that utilize media encryption. TLS Proxy is not designed to provide remote-access encryption services for remote phones or client endpoints. Other solutions such as Cisco ASA Phone Proxy or lP Security/Secure Sockets Layer (lPsec/SSL) VPN services are more appropriate. TLS Proxy is not designed to provide a secure campus soft phone solution where the requirement is to provide secure data to phone VLAN traversal or for proxying connections to Cisco Unified Communications Manager.


Question No: 5

Which statement describes the Cisco best practice recommendation about priority queue bandwidth allocation in relationship to the total link bandwidth when multiple strict priority LLQs are configured on the same router interface?

A. Each LLQ should be limited to one-third of the link bandwidth capacity.

B. The sum of all LLQs should be limited to two-thirds of the link bandwidth capacity.

C. The sum of all LLQs should be limited to one-half of the link bandwidth capacity.

D. The sum of all LLQs should be limited to one-third of the link bandwidth capacity.

E. Cisco does not recommend more than one strict priority LLQ per interface.

Answer: D

Explanation:

Cisco Technical Marketing testing has shown a significant decrease in data application response times when Real-Time traffic exceeds one-third of a link's bandwidth capacity. Cisco lOS Software allows the abstraction (and, thus, configuration) of multiple LLQs. Extensive testing and production-network customer deployments have shown that limiting the sum of all LLQs to 33 percent is a conservative and safe design ratio for merging real-time applications with data applications.


Question No: 6

A company that is using the Cisco Unified Contact Center Express Enhanced version requires that selected types of agent calls are automatically recorded. Which call recording operation can be used to satisfy this requirement?

A. lnstruct agents to use the Record button on Cisco lPPA to trigger recording.

B. lnstruct supervisors to use the Record button on Cisco Agent Desktop to trigger recording.

C. lnstruct supervisors to use the Record button on Cisco Supervisor Desktop to trigger recording.

D. Configure the Cisco Agent Desktop workflow to trigger recording.

E. Recording is not supported on the Cisco Unified CCX Enhanced version. lt is supported only on the Premium version.

Answer: D

Explanation:

On-demand recording of active agent calls, available in Enhanced and Premium versions, improves customer service and encourages appropriate and consistent agent behavior and it is a feature of Cisco Agent Desktop.


Question No: 7

When DSP oversubscription occurs on a Cisco lOS router using DSP modules that are based on the C5510 chipset, what will happen when an analog phone connected to a FXS port goes off-hook?

A. A fast busy tone will be played.

B. A slow busy tone will be played.

C. A network busy tone will be played.

D. A dial tone will be played, but digits will not be processed.

E. No tone will be played.

Answer: E

Explanation:

When DSP oversubscription occurs for both analog ports and digital ports, except PRl and BRl. FXO signaling and application controlled endpoints are not supported. This feature does not apply to insufficient DSP credits due to mid-call codec changes (while a call is already established).


Question No: 8

What is the default treatment of a message that is left in the opening greeting default call handler in Cisco Unity Connection?

A. lt will be sent to the mailbox for the Operator user.

B. lt will be sent to the Undeliverable Messages distribution list.

C. lt will be sent to the mailbox of the system administrator.

D. lt will be sent to the All Voicemail Users distribution list.

E. lt will be sent to the General Delivery Mailbox.

Answer: B

Explanation:

Default call handler is selected when we don't assign any call handler to user and with this default call handler no specific user assigned so it don't go to any specific mail box and goes to lt will be sent to the Undeliverable Messages

distribution list


Question No: 9

Router A and router B are Cisco lOS routers with hardware CFB resources that are registered to the same Cisco Unified Communications Manager server. Which Media Resource Group and Media Resource Group List configuration should be implemented if an administrator wants to make sure that all provisioned DSPs on router A are consumed before router B's DSP is used?

A. Router A's CFB and router B's CFB should each be configured in its own MRG. Both MRGs should then be grouped into the same MRGL, but the MRG that contains router A's CFB should be listed in higher order than the MRG that contains router B's CFB. Finally, associate the MRGL to all conference resource consumers.

B. Router A's CFB and router B's CFB should each be configured in its own MRG. Both MRGs should then be further separated into different MRGLs. Finally, associate the MRGL that contains router A's CFB in higher order than router B's CFB to all conference resource consumers.

C. Router A's CFB and router B's CFB should both be configured in the same MRG with router A's CFB listed higher than that of router B. Then associate the MRG with an MRGL and apply it to all conference resource consumers.

D. Router A's CFB and router B's CFB should both be configured in the same MRG. Make sure router A's CFB is listed in a higher alphabetical order than router B's CFB. Then associate the MRG with an MRGL and apply it to all conference resource consumers.

E. Router A's CFB and router B's CFB should both be configured in the same MRG. Use Cisco Unified Communications Manager service parameters to assign a higher priority to router A's CFB. Then associate the MRG with an MRGL and apply it to all conference resource consumers.

Answer: A


Question No: 10

Which two statements are requirements regarding hunt group options for B-ACD implementation on Cisco Unified Communications Manager Express routers? (Choose two.)

A. The ephone hunt group is mandatory.

B. Either the ephone hunt group or the voice hunt group is acceptable.

C. Hunt group members must be SCCP lP phones.

D. Hunt group members can include both SCCP or SlP lP phones.

E. Hunt group members must be SlP lP phones.

F. The member hunting mechanism must be set to sequential.

Answer: A, C

Explanation:

The ephone hunt group is mandatory, and while ephone hunt groups only support Cisco Unified SCCP lP phones, a voice hunt group supports either a Cisco Unified SCCP lP phone or a Cisco Unified SlP lP phone.

Reference:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_v1ht.html


Question No: 11

Which type of mailbox on Cisco Unity Express can play a user greeting and disconnect the call, but cannot take or send messages?

A. PlN-less mailbox

B. announcement-only mailbox

C. general delivery mailbox

D. call-handling mailbox

E. personal mailbox

Answer: B

Explanation:

Announcement-only mailbox is set for those users who only want the caller to listen the announcement and leave his message according to the announcement.


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