Access Control Lists (ACLs)

What is the primary purpose of an Access Control List (ACL)?

• To increase network speed

• To monitor network traffic

• To control packet forwarding or dropping

• To manage user accounts

What does an implicit deny statement in an ACL do?

• Logs all traffic

• Allows all traffic

• Blocks all traffic

• Permits specific traffic

What is a wildcard mask used for in ACLs?

• To specify the type of traffic

• To determine which bits of an address to examine

• To encrypt data packets

• To assign IP addresses

Where should extended ACLs be placed for maximum efficiency?

• Close to the destination

• In the middle of the network

• Close to the source of traffic

• At the network's edge

What command is used to apply a standard ACL to an interface?

• access-list

• deny

• ip access-group

• permit

Which of the following is a common error when configuring ACLs?

• Using wildcard masks correctly

• Applying ACLs to the correct interface

• Entering ACEs in the wrong order

• Using too many permit statements

What does the 'host' keyword represent in a wildcard mask?

• 255.255.255.255

• Any address

• A specific network

• 0.0.0.0

What is the effect of applying an ACL in the wrong direction?

• No effect at all

• Traffic will be blocked incorrectly

• All traffic will be permitted

• Only outbound traffic will be affected

What command is used to verify the ACL configuration on an interface?

• check acl status

• verify access-list

• show ip interface

• show access-lists

What is the purpose of using sequence numbers in ACLs?

• To log traffic statistics

• To edit existing ACL entries

• To prioritize traffic

• To encrypt ACL commands