What takes place at the Session layer?

A.
Dialog control

B.
Routing

C.
Packet sequencing

D.
Addressing

Explanation:
The Session layer is responsible for controlling how applications
communicate, not how computers communicate. Not all applications use protocols that
work at the Session layer, so this layer is not always used in networking functions.
A Session layer protocol will set up the connection to the other application
logically and control the dialog going back and forth. Session layer protocols allow
applications to keep state of the dialog.