最新的CCIE認證 350-030考試題庫

問題1

What is the default switchback method for an SCCP hardware transcoder when a higher-priority Cisco Unified Communications Manager becomes available again?

A. graceful

B. immediate

C. never

D. guard

E. uptime

正確答案: D

問題2

Which statement about the G.729 codec is correct?

A. G.729A and G.729B both provide built-in VAD.

B. G.729 is a high-complexity codec, while G.729A is a medium-complexity codec.

C. G.729 is a low-complexity codec, while G.729A is a high-complexity codec.

D. G.729 is a low-complexity codec, while G.729A is a medium-complexity codec.

E. G.729 and G.729A are both high-complexity codecs.

正確答案: B

問題3

To hide its identity when initiating calls, SIP Phone B requests that Server B place its calls for it.

What kind of device is Server B?

A. user agent server

B. proxy

C. user agent client

D. redirect

E. registrar

正確答案: B

問題4

Refer to the exhibit.

Which three header fields do not change for the duration of this call using SIP? (Choose three.)

A. transaction ID in the Viheader

B. To tag

C. Contact:

D. request URI

E. Call-ID:

F. From tag

正確答案: B,E,F

問題5

Which three codecs are considered to have high complexity on Cisco IOS voice gateways? (Choose three.)

A. G.729 Annex B

B. G.723

C. G.711 a-law

D. G.711 mu-law

E. G.729

F. G.728

正確答案: A,B,F

問題6

Which of these statements correctly describes the logic for selecting MoH servers and MoH audio streams?

A. The audio stream and audio server used will be selected according to the configuration of the phone which is being used to place a caller on hold.

B. The audio stream and audio server used will be selected according to the configuration of the phone being placed on hold.

C. The audio stream will be selected according to the configuration of the phone which is being used to place a caller on hold, and the audio server used will be selected according to the configuration of the phone being placed on hold.

D. The audio stream will be selected according to the configuration of the phone being placed on hold and the audio server used will be selected according to the configuration of the phone which is being used to place a caller on hold.

正確答案: C

問題7

According to RFC 3551, where default mappings between RTP payload type numbers and encodings are defined, which RTP payload type corresponds to encoded packets that are triggered by silence on a call with voice activity detection?

A. 13

B. 0

C. 15

D. 18

正確答案: A

問題8

Refer to the exhibit.

In this 802.1Q tagged Ethernet frame, which block of bits, labeled A, B, C, and D, is used as TPID?

A. B

B. A

C. D

D. C

正確答案: B

問題9

What is the maximum number of days for Cisco Unity Connection to retain expired system broadcast messages?

A. 10 days

B. 1 day

C. 60 days

D. 5 days

E. 30 days

正確答案: C

問題10

Which three call handler greeting types on Cisco Unity Connection are overridden by the internal greeting? (Choose three.)

A. holiday

B. closed

C. error

D. alternate

E. busy

F. standard

正確答案: A,B,F

問題11

The Cisco Unified Communications Manager Assistant service belongs to which feature service group on Cisco Unified Communications Manager?

A. CTI Services

B. CM Services

C. Voice Quality Reporter Services

D. Database and Admin Services

E. Performance and Monitoring Services

正確答案: A

問題12

Which statement about MRGL on Cisco Unified Communications Manager is incorrect?

A. When a call is placed on hold, the MRGL of the device that put the call on hold determines which MOH server is used to play music to the held device.

B. MRGL can be assigned to devices at the device level, device pool level, or both.

C. Media resources that are not contained in any Media Resource Groups are not used by MRGL.

D. MRGL contains a prioritized list of Media Resource Groups.

E. MRGL can contain a single Media Resource Group.

正確答案: C

問題13

Which version of MGCP is used on a Cisco IOS MGCP gateway that is registered to Cisco Unified Communications Manager?

A. 1.1

B. It varies between Cisco Unified Communications Manager versions.

C. 0.0

D. 1.0

E. 0.1

正確答案: E

問題14

Company Alpha has a central office and a branch office that utilize a central call processing toplogy. Calls between the two sites are using the G.729 codec; calls within each site are using the G.711 codec.
To conference an existing call between two phones at the central site with a phone at the remote office, which two of the following are possible solutions? (Choose two.)

A. a software conference bridge that is configured in Cisco Unified Communications Manager and a HW transcoder

B. No extra configurations required--phones automatically negotiate using the lowest common denominator codec (G.729)

C. a software conference bridge that is configured in Cisco Unified Communications Manager

D. a hardware conference bridge

E. a hardware transcoder and a hardware conference bridge

正確答案: A,D

問題15

Which Cisco Unified Presence service parameter must be modified from the default value in order for presence and instant messaging to be functional?

A. server name

B. server IP address

C. SIP proxy domain

D. enable presence

E. DNS domain

正確答案: C

最新的Cisco CCIE Voice Written - 350-030免費考試真題

最新更新

站內鏈接

聯系我們