Kerberos is based on the principle that the

knows the secret keys of all clients and servers on the

network.

Key Distribution Center

Server

Firewall

Operating System

Question $7$

access control is a form of access control in which users are assigned a matrix of

authorizations for particular areas of access.

task$-$based, discretionary

role$-$based, nondiscretionary

mandatory, discretionary

lattice$-$based, nondiscretionary

Question $8$

The restrictions most commonly implemented in packet$-$filtering firewalls are based on

IP source and destination address

Direction $($inbound or outbound$)$

TCP or UDP source and destination port requests

All of these answers are correct