Exam N10-008 topic 1 question 104 discussion

The session layer sets up, coordinates and terminates conversations between applications.

First time the answer is supported with a link lol

Layer 5 a codec which is Codec is used in an IP-based video conferencing deployment. The term "codec" is a concatenation of "encoder" and "decoder.” In video conferencing, a codec is a software (or can be hardware) that compresses (encodes) raw video data before it is transmitted over a network. Generally, audio/video conferencing systems based on layer 5 utilize the H.323 protocol with various codecs like H.263 and H.264 to operate. A circuit-level gateway is a type of firewall that operates on layer 5.

New definition of this answer is Layer 5—Session Most application protocols require the exchange of multiple messages between the client and server. This exchange of such a sequence of messages is called a session or dialog. The session layer (layer 5) represents functions that administer the process of establishing a dialog, managing data transfer, and then ending (or tearing down) the session. The older answer is still correct just fyi.

The correct answer is A. Session. The Session layer is responsible for establishing, coordinating, and terminating conversations (sessions) between applications. It provides mechanisms for opening, closing, and managing a session, and for checkpointing and restarting a session in the event of a communication failure. The Session layer is the fifth layer in the OSI model, following the Physical, Data Link, Network, and Transport layers.

A. Session is the OSI model layer where conversations between applications are established, coordinated, and terminated.