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CISSP · Question #292
CISSP Question #292: Real Exam Question with Answer & Explanation
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Submitted by alyssa_d· Mar 5, 2026Security Architecture and Engineering
Question
Which of the following is a characteristic of the initialization vector when using Data Encryption Standard (DES)?
Options
- AIt must be known to both sender and receiver.
- BIt can be transmitted in the clear as a random number.
- CIt must be retained until the last block is transmitted.
- DIt can be used to encrypt and decrypt information.
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Topics
#cryptography#initialization vector#block ciphers#DES