Implementing Cisco Collaboration Core Technologies (CLCOR 350-801) Practice Test

During codec negotiation, what is the fundamental process?

The first codec in the list is always selected The network selects the codec independently of offers The process chooses a mutually supported codec from the exchanged offers The media is always transcoded to a fixed format

Correct Answer:

The process chooses a mutually supported codec from the exchanged offers

Explanation:

Endpoints advertise the codecs they can handle and then agree on a mutual one. The process centers on exchanging offers and answers that list supported codecs, and selecting a codec that both sides support. This mutual agreement lets both ends encode and decode the media with the chosen codec. It isn’t simply picking the first option, and the network doesn’t choose independently. If there’s no overlap, negotiation may fail or require bridging/transcoding, but the normal path is to settle on a mutually supported codec.

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