350-701 Question #300: Real Exam Question with Answer & Explanation

The correct answer is A: ESP. ESP (Encapsulating Security Payload) is the IPsec protocol that offers confidentiality through encryption, alongside data integrity and origin authentication for packets.

Submitted by yasin.bd· Mar 30, 2026DOMAIN_LIST_NOT_PROVIDED_IN_PROMPT

Question

Which cryptographic process provides origin confidentiality, integrity, and origin authentication for packets?

Options

AESP
BAH
CIKEv1
DIKEv2

Explanation

ESP (Encapsulating Security Payload) is the IPsec protocol that offers confidentiality through encryption, alongside data integrity and origin authentication for packets.

Common mistakes.

B. AH provides data integrity and data origin authentication, but it does not provide confidentiality (encryption).
C. IKEv1 is a key exchange protocol used to establish IPsec Security Associations, not to directly provide confidentiality, integrity, and authentication for data packets.
D. IKEv2 is a key exchange protocol used to establish IPsec Security Associations, not to directly provide confidentiality, integrity, and authentication for data packets.

Concept tested. IPsec ESP vs AH

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_vpn/configuration/xe-16-9/sec-conn-vpn-xe-16-9-book/sec-conn-vpn-intro.html

Topics

#IPsec#ESP#Network Security#Cryptography

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