Which of the following is a way to prevent intrusions?
a. Directed broadcasts
b. Access lists
c. no ip directed-broadcast command
d. Both b and c
c. no ip directed-broadcast command
Explanation: The type of broadcast used in attacks are directed broadcasts, which are passed through the router. The no ip directed-broadcast command enables only the router to reply to directed broadcasts. Access lists are the basic form of firewall protection; although, an access list is not stateful and is not by itself a firewall.
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