Which two statement describes a difference between the operation of inbound and outbound ACLs? (Choose two.)
- Inbound ACLs are processed before the packets are routed.
- Inbound ACLs can be used in both routers and switches.
- Multiple inbound ACLs can be applied to an interface.
- Multiple outbound ACLs can be applied to an interface.
- Outbound ACLs are processed after the routing is completed.
- Outbound ACLs can be used only on routers.
- Unlike outbound ACLs, inbound ACLs can be used to filter packets with multiple criteria.
Explanation: With an inbound ACL, incoming packets are processed before they are routed. With an outbound ACL, packets are first routed to the outbound interface, and then they are processed. Thus, processing inbound is more efficient from the router’s perspective. The structure, filtering methods, and limitations (that is, only one inbound and one outbound ACL can be configured on an interface) are the same for both types of ACLs.
Exam with this question: 4.5.2 Module Quiz - ACL Concepts
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