List antivirus techniques used for protection purposes, Operating System

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Question:

a) There are main goals of data security. List them and elaborate on how they provide protection.

b) Describe threats associated with data security.

c) Describe authentication methods used to grant access to secured data.

d) There are different types of viruses that affect a program. List common viruses and describe how they affect programs.

e) List antivirus techniques used for protection purposes.

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