Certified Information Security Manager (CISM) — Question 729

Which of the following BEST ensures timely and reliable access to services?

Answer options

• A. Authenticity
• B. Availability
• C. Nonrepudiation
• D. Recovery time objective (RTO)

Correct answer: B

Explanation

The correct answer is B, Availability, which directly refers to ensuring services are accessible when needed. Authenticity, Nonrepudiation, and Recovery time objective (RTO) do not specifically address the aspect of timely access to services, making them less relevant in this context.