Exercises

Why are copper cables screened and what is the meaning of a Garaday Cage.

What are the advantages of using fibre optic over copper cables in computer networks.

Describe link encryption and its mechanism.

Describe end to end encryption and its mechanism.

What are the advantages and disadvantages of link and end to end encryption and state which mechanism is considered to be more secure and why.

What are the objectives of networks and telecommunication security.

Why is eavesdropping, traffic analysis and denial of service attacks considered as threats.