400-051 Free Demo Questions and Answers

Question: 1

Company ABC is planning to migrate from Cisco MCS-hosted Cisco Unified Communications Manager applications to Cisco UC on UCS B-Series servers. Which statement about external media supportability is true for this migration?

A. The Cisco Music on Hold USB audio sound card on the MCS servers will continue to work on the USB ports on the UCS server.

B. The Cisco Music on Hold USB audio sound card on the MCS servers will continue to work through the USB ports on the Cisco UCS server KVM dongle cable adaptor connected to the front of the UCS server.

C. The Cisco Music on Hold USB audio sound card on the MCS servers will not work on the UCS server.

D. The Cisco Music on Hold USB audio sound card can be mapped to a virtual USB port on a VMware virtual machine on the UCS server.

E. The Cisco Music on Hold USB audio sound card can be mapped to a virtual serial port on a VMware virtual machine on the UCS server.

Answer: C

Question: 2

Refer to the exhibit.

All displayed devices are registered to the same Cisco Unified Communications Manager server and the phones are engaged in an active call. Assume that the provided configurations exist at the phone line level and multicast MOH is disabled cluster wide.

Which description of what will happen when the user of IP phone B presses the Transfer soft key is true?

A. IP phone A user hears audio source 3 from MOH server A.

B. IP phone A user hears audio source 4 from MOH server B.

C. IP phone A user hears audio source 3 from MOH server B.

D. IP phone A user hears tone on-hold beep tones.

E. IP phone A user hears no on-hold music or beep tones.

Answer: E

Question: 3

Which codec complexity mode, when deployed on Cisco IOS routers with DSPs using the C5510 chipset, supports the most G.711 calls per DSP?

A. Low

B. Medium

C. High

D. Secure

E. Flex

Answer: E

Question: 4

When DSP oversubscription occurs on a Cisco IOS 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

Question: 5

Refer to the exhibit.

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

A. 91

B. 92

C. 93

D. 94

E. 95

Answer: D

Question: 6

In a Cisco Unified Communications Manager system, which three locations does the TFTP server search when a device requests a configuration file from a TFTP server? (Choose three.)

A. internal caches

B. local disk

C. alternate file server

D. NFS server

E. FTP server

F. load server

Answer: A, B, C

Question: 7

Which three message types for RTCP are valid? (Choose three.)

A. sender report

B. end of participation

C. source description

D. sender codec

E. receiver packets

F. average MOS

Answer: A, B, C

Question: 8

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

Question: 9

Which two steps must be taken when configuring EMCC? (Choose two.)

A. An SFTP server that all clusters share must be set up.

B. Certificates from all remote clusters must be imported into each cluster.

C. Cross-cluster Enhanced Location CAC must be configured.

D. End users must be configured to only exist in their home cluster.

E. A device pool for EMCC phones must be configured.

F. Define MLPP domains.

Answer: A, B

Question: 10

Which two settings must be the same between the backup source and restore target with DRS in Cisco Unified Communications Manager? (Choose two.)

A. Server Hostname

B. Server IP Address

C. Cluster Security Password

D. NTP Servers

E. Domain Name

F. Certificate Information

Answer: A, B

Question: 11

Which two rules apply to MMOH in SRST? (Choose two.)

A. A maximum of three MOH groups are allowed.

B. Cisco Unified SRST voice gateway allows you to associate phones with different MOH groups on the basis of their IP address to receive different MOH media streams.

C. A maximum of five media streams are allowed.

D. Cisco Unified SRST voice gateway allows you to associate phones with different MOH groups on the basis of their MAC address to receive different MOH media streams.

E. Cisco Unified SRST voice gateway allows you to associate phones with different MOH groups on the basis of their extension numbers to receive different MOH media streams.

Answer: C, E

Question: 12

Which two QoS guidelines are recommended for provisioning interactive video traffic? (Choose two.)

A. Latency should be no more than 4–5 seconds.

B. Overprovision interactive video queues by 20% to accommodate bursts.

C. Loss should be no more than 5%.

D. Interactive video should be marked to DSCP CS4.

E. Jitter should be no more than 30 ms.

Answer: B, E

Question: 13

Which two clock rates does Performance Monitor use to calculate RTP jitter values? (Choose two.)

A. PCMU (G.711 mu-law), 8000 Hz

B. PCMU (G.711 mu-law), 32000 Hz

C. PCMA (G.711 A-law), 16000 Hz

D. H.263, 90,000 Hz

E. H.263, 64,000 Hz

Answer: A, D

Question: 14

Which TFTP server address selection option has the highest precedence on Cisco SCCP IP phones using firmware release 8.0(4) or later?

A. a manually configured alternate TFTP option on the phone

B. the first Option 150 IP address received from the DHCP server

C. the first Option 66 dotted decimal IP address received from the DHCP server

D. the first IPv6 TFTP Server address received from the DHCP server

E. the value of next-server IP address in the boot-up process

Answer: A

Question: 15

Which Cisco IOS multipoint video conferencing profile attempts to reserve DSPs only when it is activated with an actual conference?

A. homogeneous

B. guaranteed-audio

C. rendezvous

D. heterogeneous

E. flex mode video

Answer: B

Question: 16

Which Cisco IOS multipoint video conferencing profile reserves DSPs when it is created in the configuration?

A. flex mode video

B. guaranteed-audio

C. rendezvous

D. heterogeneous

E. guaranteed-video

Answer: D

Question: 17

Which statement describes how much of the DSP resources are reserved for video conference when voice-service dsp-reservation 40 is configured on a Cisco Integrated Router Generation 2 with packet voice and video digital signal processor 3?

A. 60% of the total available DSP resources

B. 40% of the total available DSP resources

C. 50% of the total available DSP resources

D. Video conferencing resources are reserved dynamically by Cisco IOS and cannot be changed.

E. This command is used for voice resource reservation only.

Answer: A

Question: 18

Which statement describes a video conference viewing mode on a Cisco Integrated Router Generation 2 with packet voice and video digital signal processor 3 that is configured to work with Cisco Unified Communications Manager?

A. Video of one participant is displayed to all other video capable participants in a round-robin manner.

B. Video of the loudest speaker is displayed across all video capable participants.

C. Video of one participant, except for those with mute enabled, is displayed to all other video capable participants in a round-robin manner.

D. The dedicated conference lecturer can one participant at a time, while all others can only see the lecturer.

E. Video of one participant is displayed to all other video capable participants in a random manner using an algorithm hard-coded in Cisco IOS.

Answer: B

Question: 19

Refer to the exhibit.

Which out-of-dialog SIP OPTIONS ping response put dial-peer tag 1111 into its current operational state?

A. 401 Unauthorized

B. 505 Version Not Supported

C. 406 Not Acceptable

D. 482 Loop Detected

E. 500 Server Internal Error

Answer: B

Question: 20

Refer to the exhibit.

Which three Ethernet Setup Administrator Settings are manually configurable locally on the Cisco 9971 IP phone? (Choose three)

A. Operational VLAN Id

B. Admin VLAN Id

C. PC VLAN

D. SW Port Setup

E. PC Port Setup

Answer: B, D, E

Test Information: Total Questions: 188 Test Number: 642-742 Vendor Name: Cisco Cert Name: Ccnp Wireless Test Name: Ccnp Wireless - Iuwvn Official Site: http://www.cert4prep.co.uk For More Details: http://www.cert4prep.co.uk/642-742.html