Refer to the exhibit. Which route does R1 select for traffic that is destined to 192.168.16.2? 

Answer options:

A. 192.168.16.0/21
B. 192.168.16.0/24
C. 192.168.16.0/26
D. 192.168.16.0/27

D

The destination IP addresses match all four entries in the routing table but the 192.168.16.0/27 has the longest prefix so it will be chosen. This is called the longest prefix match rule.