多項選擇題

Which three components are part of the Intelligent Network Services provided by the Cisco AVVIDframework？（）

A. IP telephony
B. security
C. IP multicasting
D. QoS

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單項選擇題

Jitter is an unwanted variation of one or more characteristics of a periodic signal in electronics and telecommunications and（）refers to call issues that cause variations in timing or time of arrival.

A. echo
B. jitter
C. packet loss
D. digitized sampling

單項選擇題

Which VPN management feature would be considered to ensure that the network had the least disruption of service when making topology changes？（）

A. dynamic reconfiguration
B. path MTU discovery
C. auto setup
D. remote management

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