Certified Information Systems Security Professional (CISSP) — Question 35

Which of the following BEST ensures the integrity of transactions to intended recipients?

Answer options

• A. Public key infrastructure (PKI)
• B. Blockchain technology
• C. Pre-shared key (PSK)
• D. Web of trust

Correct answer: B

Explanation

Blockchain technology is designed to provide a secure and immutable record of transactions, ensuring that they reach their intended recipients without alteration. In contrast, Public key infrastructure (PKI) and Pre-shared key (PSK) focus on authentication rather than transaction integrity, while a Web of trust relies on subjective trust relationships that can be less reliable.