Question

What are the functions of the transport layer?

(a) Multiplexing/ Demultiplexing

(b) Connection less Services

(c) Connection oriented service

(d) Congestion control

I got this question in class test.

My question comes from Transport Layer topic in chapter Internet Principles of IOT

Answer 1

Correct option is (a) Multiplexing/ Demultiplexing

The best explanation: Transport layer functions are:

–> Multiplexing / DE multiplexing : Normally the transport layer will create distinct network connection for each transport connection required by the session layer.

–> Fragmentation and Re assembly: The data accepted by the transport layer from the session layer is split up into smaller units if needed and then passed to the network layer.