How do LANs differ from WANs, and BNs?

What is a circuit?

Describe the seven layers in the OSI network model and what they do.

Describe the five layers in the Internet network model and what they do.

What is middleware and what does it do?

How does a thin client differ from a thick client?

What are the major parts of an e-mail message?

How does a multipoint circuit differ from a point-to-point circuit?

Describe three types of guided media.

How does analog data differ from digital data? 11. What feature distinguishes serial mode from parallel mode?

Describe how data could be transmitted using frequency modulation?

What is VoIP?