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Exam CISSP Topic 4 Question 640 Discussion

Actual exam question for ISC's CISSP exam
Question #: 640
Topic #: 4
Internet protocol security (IPSec), point-to-point tunneling protocol (PPTP), and secure sockets Layer (SSL) all use Which of the following to prevent replay attacks?

Suggested Answer: D Vote an answer

IPSec, PPTP, and SSL all use randomly generated nonces to prevent replay attacks. A nonce is a number that is used only once in a cryptographic communication. It is usually sent along with the encrypted message to ensure freshness and uniqueness. A replay attack is when an attacker intercepts and retransmits a valid message to gain unauthorized access or cause a denial of service. By using nonces, the protocols can detect and reject any repeated messages that have the same nonce value. References: CISSP All-in-One Exam Guide, Eighth Edition, Chapter 6: Cryptography and Symmetric Key Algorithms, page 287. CISSP Practice Exam - FREE 20 Questions and Answers, Question 13.

by rami_mma at Aug 28, 2024, 10:33 PM

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2024-08-28 22:33:14
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Here are all the actual test exam dumps for IT exams. Most people prepare for the actual exams with our test dumps to pass their exams. So it's critical to choose and actual test pdf to succeed.

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