What do you meant by the term bastion host, Computer Network Security

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Question :

(a) What do you meant by the term "Bastion Host"? What is its use?

(b) "Hostile" Java applets will do undesirable actions. Mention two problems caused by Hostile Java applets.

(d) The ISA server's LAT is a standard part of how a firewall functions. What does LAT stands for? Briefly explain the role of the LAT.

(e) There are three types, or modes, of ISA Server installation. Name these three modes?

(f) List the three client types supported by ISA server.

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