Which of the following protocols encapsulates an IP packet with an additional IP header?

The correct answer is B. IPSec. IPSec operating in tunnel mode wraps the entire original IP packet (header + payload) inside a new outer IP packet with a new IP header. This double-encapsulation allows the original packet to be securely transported across untrusted networks (such as the internet) while hiding…

General security concepts

Question

Options

ASFTP
BIPSec
CHTTPS
DSSL

How the community answered

(32 responses)

A
3% (1)
B
88% (28)
C
3% (1)
D
6% (2)

Explanation

IPSec operating in tunnel mode wraps the entire original IP packet (header + payload) inside a new outer IP packet with a new IP header. This double-encapsulation allows the original packet to be securely transported across untrusted networks (such as the internet) while hiding the original source and destination addresses. This is the core mechanism behind IPSec-based VPNs. SFTP (port 22) securely transfers files over SSH. HTTPS encrypts HTTP traffic using TLS but does not add a new IP header. SSL/TLS encrypts application-layer data but also does not add an additional IP header.

Topics

#IPSec#tunneling#VPN#network protocols

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