Question

Q.1. A company has a number of offices around the world.

Data is transmitted between the offices over the internet. In order to keep the data safe the company is using

Secure Socket Layer ( SSL) protocol and a firewall at each office.

Explain how SSL protocol and a firewall will keep the company’s data safe.

SSL protocol

Firewall

Q.2. A company stores personal details of its customers on a computer system behind a firewall.

Explain , with reasons , what else the company should do to keep this data safe.

Q.3. The data stored by the library is archived at the end of each day. The archive is held on a

Server in the library office.

The data is encrypted with an 8 – bit key . As some of the data is confidential , the library wants to make the

encryption more secure.

a. State how the library could make the encryption more secure .

b. The term used to describe data before it is encrypted is plain text.​

Answer 1

Answer:

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