Which layer process does not do encapsulation when an application layer process transmits a message?
A)physical
B)data link
C)internet
D)All do encapsulation.

Question

Quizplus · Accepted Answer

The physical layer does not perform encapsulation as it is responsible for transmitting raw bits over the network medium. Encapsulation starts from the data link layer, where frames are created by adding a header and trailer to the data received from the network layer. The internet and application layers also perform encapsulation by adding headers to the data they receive from the upper layers. Therefore, option A is the only layer that does not do encapsulation.

Which Layer Process Does Not Do Encapsulation When an Application