Question

Access control lists (ACLs) are used to permit and deny traffic in an IP router.

A. True
B. False

Answer 1

A. True

Step-by-step explanation:

• ACLs are the packet filters of the network. They may restrict, allow or deny traffic necessary for safety.
• When setting rules for ACLs, all traffic flow depends on the point of view of the router's interface (not other networks).
• ACL allows you to control the flow of packets for a single or group of IP addresses or for protocols such as TCP, UDP, ICMP and so on.
• Invalid interface or accidental change of source / destination may adversely affect ACL network