Which THREE of the following are characteristics of a Firewall?

A Firewall is an element of a company’s Information Technology infrastructure.

Which THREE of the following are characteristics of a Firewall?
A . A Firewall determines the boundary of the "Trusted" components of the company’s Information Technology infrastructure.
B . A Firewall protects sensitive data against accidental or malicious damage.
C . A Firewall protects the computer suite against physical attack.
D . A Firewall protects against unauthorised network access.
E . A Firewall protects against viruses.
F . A Firewall can screen every message coming into or out of the company network looking for key words, or attachments.

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Answer: A,D,F