CCNA Practice Exam Test Sample – Question 14

Where does routing occur within the DoD TCP/IP reference model?

A. application
B. internet
C. network
D. transport

Correct Answer: B
Section: Operation of IP Data Networks

Explanation:
The picture below shows the comparison between TCP/IP model & OSI model. Notice that the Internet Layer of TCP/IP is equivalent to the Network Layer which is responsible for routing decision.
q14 ccnax