How does a firewall help in preventing intrusion into information ...

[futuristic]

How does a firewall help in preventing intrusion into information systems?
 
  What will be an ideal response?

Question 2

The last step in the knowledge management value chain is
 
  A) feedback.
  B) acquire.
  C) disseminate.
  D) store.
  E) apply.

[aruss1303]

Answer to Question 1

Firewall is a technical control in an organization that inspects incoming and outgoing traffic and either blocks or permits it according to rules the organization establishes. The firewall can be a hardware device or a software program, and its rules regulate traffic based on different levels of trust. The rules might state that any other server in the same domain is trustworthy, so traffic would pass easily between them. External traffic from the Internet, however, would need different rules. These systems also include features to detect suspicious events and alert managers immediately.

Answer to Question 2

E