Weekly CISSP Exam Questions
What is the primary function of HMAC (Hash-based Message Authentication Code)?
A. Confidentiality
B. Data Integrity and Authentication
C. Availability
D. Anonymity
Answer: B. Data Integrity and Authentication
Explanation:
- Data Integrity and Authentication: HMAC provides these through cryptographic hashing.
- Confidentiality: Not the main function of HMAC.
- Availability: Unrelated to HMAC.
- Anonymity: Not provided by HMAC.

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