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HCNP-VC (Huawei Certified Network Professional- Video Conference) Questions 51–55 (page: 12)

Area management is implemented by ( ).

In RTP packet, the timestamp reflects the sampling instant of the first octet in the RTP data packet. The sampling instant must be derived from a clock that increments monotonically and linearly in time to allow synchronization and jitter calculations.
The initial value of the timestamp should be random. It increases by 1 with each increasing packet. ( )

RFC2190 defines three formats for H.263 payload header: modes A, B, and C. Mode A is recommended and also the most common one. ( )

If a GK, by resolving the called number, finds that the called terminal registers with a neighboring GK, the GK can request the neighboring GK to resolve the called number.

The H.225 defines ( ) signaling. (Select 2 answers)