Cisco 3521 Bedienungsanleitung PDF herunterladen (Seite 14)

Exam Name: Rich Media Communications

Exam Type: Cisco

Exam Code: 642-481 Total Questions: 55

Page 14 of 17

Company.com is interested in using videoconferencing to link offices for regional, district, and

area sales meetings. Company.com currently uses IP telephony and has an IP WAN linking all

the remote offices. The customer is concerned that a large number of videoconferences may use

too much bandwidth, impacting the ability of other users to accomplish work on the network. How

should MCUs be configured to support this

customer and minimize bandwidth consumption?

A. a single-level conference with a centralized MCU at headquarters and cascaded media

processors at each regional location

B. a two-level conference with a centralized MCU media processor at headquarters and

cascaded media processors at each regional location

C. a single-level conference with a centralized media processor at headquarters and cascaded

media processors at each regional location

D. a two-level conference with an MCU at headquarters and cascaded MCUs at each regional

location

Answer: D

Question: 44

How many streams are required to each participant from the MCU with EMP support, if it is

providing the services to transrate from 768 kbps to 384 kbps and to provide continuous presence

with text overlay?

A. one

B. two

C. three

D. four

Answer: B

Question: 45

Company.com is implementing a Cisco IP Videoconferencing solution that includes a Cisco

CallManager and a Cisco IOS Gatekeeper. Company.com uses H.323 and H.320 devices

exclusively. Video calls will use RTP streams for audio, video, and far-end camera control and a

sequence of call control signaling messages.What is the best way for bearer traffic to be

handled?

A. by Cisco CallManager and routed to the endpoints

B. by Cisco CallManager and routed by the endpoints

C. not by Cisco CallManager but routed directly between endpoints

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Cisco 3521 Bedienungsanleitung Seite 14