unreachable. In order to permit the MGCP gateway to take use of a different call agent once the primary fails, which configuration should you make? A. Add ccm-manager fallback-mgcp command to the gateway. B. Add ccm-manager redundant-host command to the gateway C. Assign a Cisco Unified CallManager group including the secondary call agent to the gateway D. Define gateway as a non-gatekeeper-controlled intercluster trunk with the secondary Cisco Unified CallManager defined. Answer: B QUESTION: 76 Which RAS message does a gateway use to request admission to a network and to also request phone number to IP address resolution? A. ARQ B. IRQ C. LRQ D. RRQ Answer: A Explanation: Admission messages between endpoints (like a gateway) and gatekeepers provide the basis for call admissions and bandwidth control. Gatekeepers authorize access to H.323 networks with the confirmation of or rejection of an admission request. This table defines the RAS admission messages 38
1 ml QUESTION: 77 As a network technician, you should be familiar with RTCP. Which of the following statements best describes a function of RTCP? A. RTCP provides encryption, message authentication and integrity, and anti-replay service for voice streams. B. RTCP uses even-numbered UDP ports in the range 16,384??0?10?0?43??ì?0?1C32,767 to transport voice payloads C. RTCP provides out-of-band control information for an RTP flow D. RTCP caches an RTP packet-Layer 3 and Layer 4 headers in the routers at each end
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- Fall '19
- IP address, network technician, Real-time Transport Protocol