Question

__________ is used for encrypting data at network level.

(a) IPSec

(b) HTTPS

(c) SMTP

(d) S/MIME

This question was addressed to me in an international level competition.

I'm obligated to ask this question of Security Protocols in portion Cyber Security of Cyber Security

Answer 1

The correct answer is (a) IPSec

To explain I would say: IPSec (Secure Internet Protocol) is used for securing data at the network level by using 3 different protocols. These are Encapsulating Secure Payload (ESP), Authentication Header, and Internet Key Exchange (IKE).