A network technician is configuring network addresses and port numbers for a router ACL to block a peer-to-peer application. Which of the following is the HIGHEST layer of the OSI model at which this router ACL operates?
A) Transport
B) Network
C) Session
D) Application

Question

Quizplus · Accepted Answer

Router ACLs that block specific port numbers operate at the Transport layer of the OSI model, as this layer is responsible for end-to-end communication and port management.

A Network Technician Is Configuring Network Addresses and Port Numbers