Question

As a network technician at ASU you are configuring access lists on an interface of a Cisco router. You use multiple access lists. Which of the following statements is valid?

There is no limit to the number of access lists that can be applied to an interface, as long as they are applied in order from most specific to most general.

Cisco IOS allows only one access list to be applied to an interface.

One access list may be configured per direction for each Layer 3 protocol configured on an interface.

Up to three access lists per protocol can be applied to a single interface.

Answer 1

Answer:

Option 3: One access list may be configured per direction for each Layer 3 protocol configured on an interface.

because there re some rules of access list:

• Only one access list per interface, per protocol, per layer3 protocol and per direction is allowed.

• An access list must contain at least one permit statement or all packets are denied entry into the network.

• Standard access lists and extended access lists cannot have the same name.

• If an access list is referenced by a name, but the access list does not exist, all packets pass. An interface or command with an empty access list applied to it permits all traffic into the network.