You are designing a new IPSec implementation for your organization, and are trying to determine
your security needs. You need to clearly understand the implementation choices, before you make
any changes to the network. Which of the following describes what transport and tunnel modes
protect using IPSec?

A.
In transport mode, IPSec protects upper-layer protocols.

B.
In transport mode, IPSec protects just the TCP header.

C.
In tunnel mode, IPSec protects the upper-layer protocols.

D.
In transport mode, IPSec protects the entire IP packet.

E.
In tunnel mode, IPSec protects the entire IP packet.

F.
In tunnel mode, IPSec protects just the IP header.