Exam Name: Rich Media Communications
Exam Type: Cisco
Exam Code: 642-481 Total Questions: 55
Page 7 of 17
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A. E.164 addresses will be managed by the Cisco CallManager cluster, and the gatekeeper will
manage the CAC for the LAN and WAN.
B. An intercluster trunk will be configured from the Cisco CallManager cluster to each of the new
video gateways, and E.164 addressing and CAC will be managed by the gatekeeper.
C. Each new gateway will be included in the Cisco CallManager configuration through an MRG
and an MRGL, and use locations-based CAC.
D. A H.225 trunk will be configured between the gatekeeper and the Cisco CallManager cluster;
the gatekeeper will resolve the E.164 addresses and manage CAC for the IP WAN.
Answer: D
Question: 19
Company.com is interested in deploying Cisco VT Advantage cameras along with H.323 video
room systems at the facility. How should MRGs be configured to support IP phones, Cisco VT
Advantage cameras, and H.323 video room systems with Cisco IPVC 3511 Multipoint Control
Units?
A. One MRG would be required to support the IP phones, Cisco VT Advantage cameras, and
H.323 video room systems.
B. Two MRGs would be required, one to support IP phones, and one to support Cisco VT
Advantage cameras and H.323 video room systems.
C. Three MRGs would be required, one to support IP phones, one to support Cisco VT
Advantage cameras, and one to support the H.323 video room systems.
D. Four MRGs would be required, one to support conferencing and transcoding resources, one
to support IP phones, one to support Cisco VT Advantage cameras, and one to support
H.323 video room systems.
Answer: B
Question: 20
Company.com has a conferencing network that is used by only H.323 endpoints. Company.com
wants the ability to include SIP endpoints in conferences. What needs to be done to allow SIP
and H.323 endpoints in the same conferences?
A. Cluster H.323 MCUs with SIP MCUs.
B. Segment the MCU ports as either H.323 or SIP ports.
C. Configure the MCU to register with a gatekeeper and SIP proxy servers, and configure the
SIP protocol parameters.
D. Supply the SIP endpoint users with H.323 terminals. Conferences with both H.323 and SIP
endpoints are not supported.
Answer: C
Question: 21
Company.com has its corporate HQ in Seattle, with remote sales offices in Denver, Chicago, New
York, and Atlanta. Company.com is in the process of transitioning the H.320 videoconferencing
system to an IP videoconferencing system. Company.com has installed an MCU at the corporate
HQ, but the remote offices still have H.320 terminal endpoints. A Cisco IPVC 3526 PRI
Videoconferencing Gateway has been installed to allow the remote offices to dial into
videoconferences. The telephony provider has given Company.com one phone number for the
PRI, which can route to all the channels on the PRI. Which two methods are best for routing calls
from the gateway to the MCU for conferences? (Choose two.)
A. DID
B. IVR
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