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Multiple Choice

In IP-based videoconferencing networks, which component helps manage call routing and addresses and reduces bottlenecks?

In IP-based videoconferencing, central control for who can call whom and how the call is set up is essential to keep signaling efficient and avoid overload. The component that provides this centralized management is the gatekeeper. In H.323 networks, the gatekeeper handles Registration, Admission, and Status messages, translating user-friendly addresses (aliases) to IP addresses and coordinating call routing. It can also enforce bandwidth limits and perform call admission control, which helps prevent network congestion and bottlenecks during peak usage. The other items are different things: the codecs like G.711 and G.722 determine audio quality and compression, not how calls are routed or how addresses are resolved. GIF is an image format and isn’t involved in videoconferencing signaling.

In IP-based videoconferencing, central control for who can call whom and how the call is set up is essential to keep signaling efficient and avoid overload. The component that provides this centralized management is the gatekeeper. In H.323 networks, the gatekeeper handles Registration, Admission, and Status messages, translating user-friendly addresses (aliases) to IP addresses and coordinating call routing. It can also enforce bandwidth limits and perform call admission control, which helps prevent network congestion and bottlenecks during peak usage.

The other items are different things: the codecs like G.711 and G.722 determine audio quality and compression, not how calls are routed or how addresses are resolved. GIF is an image format and isn’t involved in videoconferencing signaling.