400-051 | All About Top Quality 400-051 pdf

Q1. Which three Cisco Unity Connection call handler greetings can be overridden by the internal greeting? (Choose three.)

A. holiday

B. alternate

C. error

D. busy

E. closed

F. standard

Answer: A, E, F

Explanation:

This greeting overrides the Standard, Closed, and Holiday greetings but only for internal callers or users defined in Cisco Unity Connection because the mentioned three greetings are defined for externals users.

Q2. 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 happens when the user of lP phone B presses the Transfer soft key is true?

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

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

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

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

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

Answer: E

Q3. Which digital modulation method is used to transmit caller lD information on analog FXS ports on Cisco lOS routers?

A. DTMF

B. PSK

C. FSK

D. MF

E. pulse dialing

Answer: C

Explanation:

Link:-http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/vcr1/vcr1-cr-book/vcr-c4.html

Q4. Refer to the exhibit.

Which ds0-group option should you select to support automated number identification information collection on inbound calls for this digital T1 voice circuit?

A. e&m-wink-start

B. e&m-delay-dial

C. e&m-delay-dial

D. e&m-lmr

E. e&m-fgd

Answer: E

Explanation:

Because it can receive ANl information and sends DNlS info. But can't send ANl.

Reference:

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/isdn/configuration/15-mt/vi-15-mt-book/vi-imp-t1ca-voip.html

Q5. To which QoS tool category does compressed RTP belong?

A. classification

B. marking

C. link efficiency

D. queuing

E. prioritization

Answer: C

Explanation:

LLQ is a feature that provides a strict PQ to CBWFQ. LLQ enables a single strict PQ within CBWFQ at the class level.

With LLQ, delay-sensitive data (in the PQ) is dequeued and sent first. ln a VolP with LLQ implementation, voice traffic is placed in the strict PQ.

Q6. Which codec complexity mode, when deployed on Cisco lOS 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

Explanation:

The flex parameter allows the complexity to automatically adjust to either medium or high complexity depending on the needs of a call. For example, if a call uses the G.711 codec, the C5510 chipset automatically adjusts to the medium-complexity mode. However, if the call uses G.729, the C5510 chipset uses the high complexity mode

Q7. Which Cisco packet voice and video digital signal processor 3 can be used for video mixing on a Cisco lntegrated Router Generation 2?

A. PVDM3-16

B. PVDM3-32

C. PVDM3-64

D. PVDM3-128

Answer: D

Explanation:

All the PVDM3 types (that is, PVDM3-16, PVDM3-32, PVDM3-64, PVDM3-128, PVDM3-192, and PVDM3-256) support switched-only video conferences. Only PVDM3-128 and higher modules support video conferencing with video mixing, transcoding and transrating.

Reference:

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

Q8. Refer to the exhibit.

On which two Cisco Unified CM Administration pages can a system administrator define MTU for an SSL VPN tunnel connecting between a Cisco lP phone and a Cisco lOS VPN gateway? (Choose two.)

A.VPN Profile B.VPN Group C.VPN Gateway

D. VPN Feature Configuration

E. System, followed by Enterprise Parameters

F. System, followed by Enterprise Phone Configuration

Answer: A, D

Explanation: Reference:http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/security/8_5_1/secugd/sec-851- cm/secvpfet.html

Q9. Refer to the exhibit.

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

Explanation:

Since the use of the "priority" keyword was not used in this example 0% is the correct answer.

Q10. Which statement about system broadcast messages in Cisco Unity Connection is true?

A. The user can skip a system broadcast message to listen to new messages first.

B. The user can forward a system broadcast message only if it has been played in its entirety.

C. System broadcast messages are synchronized between Cisco Unity Connection and Exchange when Single lnbox is configured.

D. System broadcast messages do not trigger MWl.

E. System broadcast messages are played immediately after users sign in and listen to message counts for new and saved messages.

Answer: D

Explanation:

System broadcast messages are played immediately after users log on to Cisco Unity Connection by phone even before they hear message counts for new and saved messages. After logging on, users hear how many system broadcast messages they have and Connection begins playing them.