problem 1:

prepare down comprehensive note on the term Data Communication.

problem 2:

Make a distinction between standards and protocol.

problem 3:

Compare the two techniques of serial transmission.

problem 4:

Illustrate about the connection oriented services.

problem 5:

Discuss about twisted pair cable.

problem 6:

Illustrate out the features of infrared.

problem 7:

Make a distinction between passive and active hub.