A network administrator uses GRE over IPSec to connect two branches together via VPN tunnel. Which one of the following is the reason for using GRE over IPSec?
A) GRE over IPSec provides better QoS mechanism and is faster than other WAN technologies
B) GRE over IPSec decreases the overhead of the header.
C) GRE supports use of routing protocol, while IPSec supports encryption.
D) GRE supports encryption, while IPSec supports use of routing protocol.

Question

Quizplus · Accepted Answer

GRE (Generic Routing Encapsulation) allows the use of routing protocols over the tunnel, while IPSec provides encryption and security. This combination allows for secure transmission of data with the ability to use dynamic routing protocols.

A Network Administrator Uses GRE Over IPSec to Connect Two