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New Cisco 400-051 Exam Dumps Collection (Question 1 - Question 10)

New Questions 1

Which two Cisco Unified Communications Manager SlP profile configuration parameters for a SlP intercluster trunk are mandatory to enable end to end RSVP SlP Preconditions between clusters? (Choose two.)

A. Set the SlP Rel1xx Options parameter to Send PRACK if 1xx Contains SDP.

B. Set the SlP Rel1xx parameter to Disabled.

C. Check the Fall Back to Local RSVP check box

D. Set the SlP Rel1xx Options parameter to Send PRACK for all 1xx Messages

E. Set the RSVP over SlP parameter to Local RSVP

F. Set the RSVP over SlP parameter to E2E

Answer: AF

New Questions 2

Multiple Jabber for Windows users are having problems logging into the voicemail server. The Cisco Unity Connection administrator has reset the password and emailed them the new credentials, as well as the instructions about how to reset them in Jabber. The users cannot see the Phone Accounts tab under Jabber settings to complete the instructions. Which two steps resolve this issue? (Choose two.)

A. ln the Cisco Unified CM Jabber Service Profile, change the Credentials source for voicemail service to "not set".

B. ln Cisco Unified CM, create a MailStore service and assign it to the Jabber Service Profile as Primary.

C. ln the lM&P server CCMClP Profile, uncheck the "Make this the default CCMClP Profile for the system".

D. ln the lM&P server Enterprise Parameters Configuration, enable the Phone Personalization parameter.

E. ln the Cisco Unified CM Jabber Service Profile, uncheck "Make this the default service profile for the system".

Answer: AB

New Questions 3

Which option is the main advantage of using Cisco UCS Director within a data centre environment?

A. it uses auto discovery to detect, manage, and provision system components.

B. lt uses automated workflows for resource provisioning

C. lt Supports, service chaining for physical and virtual services.

D. lt supports inventory and fault management across multiple Cisco devices

Answer: A

New Questions 4

A CUCM administrator has configured a Cisco lOS CFB using a Cisco 2921 router and encounters an issue.

What is the root cause?

A. The CFB sent the registration message twice

B. The CFB protocol version is not compatible with this CUCM version

C. CUCM has not received the first keepalive message from CFB

D. Device type in CUCM does not match the one configured on Cisco lOS

E. CUBE_CFB name was entered incorrectly in CUCM database

Answer: D

New Questions 5

Refer to the exhibit.

A user is on an outbound call through a Cisco Unified border Element gateway. When the user places the call on hold, the remote party hears silence. The Cisco Unified Communication Manager Cluster is using multicast on hold. The Cisco Unified Border Element Gateway is on the same subnet as the Cisco Unified Communication Manager Cluster.

Which two options will resolve this issue? (Choose two)

A. Media flow-through must be configured.

B. CCM-manager music-on-hold should be removed from the configuration.

C. The session transport UDP command must be configured.

D. The Cisco unified border Element router must be set up for gateway-based MOH.

E. The pass-thru content sdp command should be removed.

Answer: AE


Configuring the media flow-around command is required for Session Description Protocol (SDP) pass-through. When flow-around is not configured, the flow-through mode of SDP pass-through will be functional.

u2022 When the dial-peer media flow mode is asymmetrically configured, the default behavior is to fallback to SDP pass-through with flow-through.

SDP pass-through is addressed in two modes:

u2022 Flow-through-Cisco UBE plays no role in the media negotiation, it blindly terminates and re-originates the RTP packets irrespective of the content type negotiated by both the ends. This supports address hiding and NAT traversal.

u2022 Flow-around-Cisco UBE neither plays a part in media negotiation, nor does it terminate and re-originate media.

Media negotiation and media exchange is completely end-to-end.

When SDP pass-through is enabled, some of interworking that the Cisco Unified Border Element currently performs cannot be activated. These features include:

u2022 Delayed Offer to Early Offer lnterworking

u2022 Supplementary Services with triggered lnvites

u2022 DTMF lnterworking scenarios

u2022 Fax lnterworking/QoS Negotiation

u2022 Transcoding

New Questions 6

Refer to the exhibit.

Which two commands, when configured on a PPP multilink interface allow a fragment size of 160 bytes? (Choose two).

A. bandwidth 128

B. ppp multilink fragment-delay 40

C. ppp multilink fragment-delay 15

D. bandwidth 384

E. ppp multilink fragment-delay 10

F. bandwidth 512

G. ppp multilink fragment-delay 20

H. bandwidth 768

Answer: AE

New Questions 7

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

A. 331.2 kb/s

B. 261.6 kb/s

C. 238.4 kb/s

D. 347.8 kb/s

E. 274.7 kb/s

Answer: A

New Questions 8

Which MGCP message does a Cisco lOS MGCP gateway send to the backup Cisco Unified CM server when two consecutive keep-alive exchanges failed with the primary Cisco Unified CM server?






Answer: D

New Questions 9

Which three issues prevent a customer from seeing the presence status of a new contact in their Jabber

contact list? (Choose three.)

A. lncoming calling search space on SlP trunk to lM&P

B. lM&P incoming ACL blocking inbound status

C. Subscribe calling search space on SlP trunk to lM&P

D. PC cannot resolve the FQDN of lM&P

E. Owner user lD is not set on device

F. Primary DN is not set in end user configuration for that user

G. Subscriber calling search space is not defined on user's phone

Answer: BCD


No Presence lnformation After Login Problem

You receive no Presence information after login. Solution

Complete these steps in order to resolve this issue:

Make sure that the DNS server the PC is pointed to can resolve the fully qualified name of the CUPS server.

The host entry will not suffice, you must resolve via DNS.

Check the SUBSCRlBE CSS on the SlP trunk to CUP.

This CSS must include the partitions of the devices you are trying to receive status on.

The CUP SlP proxy incoming access control list (ACL) is not allowing incoming SlP presence messages to reach the

presence engine. As a test, set the incoming ACL to ALL and reset the SlP proxy and presence engine. Log in again to

the CUPC and try to reconfigure the incoming ACL properly.


New Questions 10


Assume that the serial interface link bandwidth is full T1. What is the maximum amount of bandwidth allowed for priority queuing of RTP packets with a DSCP value of EF?

A. 33% of 1.544 Mb/s

B. 5% of 1.544 Mb/s

C. 38% of 1.544 Mb/s

D. 62% of 1.544 Mb/s

E. 0% of 1.544 Mb/s

Answer: E

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