Implementing and Operating Cisco Security Core Technologies (SCOR) — Question 453

What is provided by the Secure Hash Algorithm in a VPN?

Answer options

• A. authentication
• B. encryption
• C. integrity
• D. key exchange

Correct answer: C

Explanation

The Secure Hash Algorithm (SHA) is primarily used to ensure data integrity by creating a unique hash for the data being transmitted, allowing any alterations to be detected. While authentication, encryption, and key exchange are important aspects of VPN security, they are not functions of the SHA itself.