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SSCP · Question #1261
SSCP Question #1261: Real Exam Question with Answer & Explanation
The correct answer is A: ROT13. ROT13 is a simple substitution cipher sometimes used on Unix systems, primarily for obscuring text rather than providing strong encryption.
Submitted by lukas.cz· Apr 18, 2026Cryptography
Question
Some Unix systems use a very simple cipher called _________.
Options
- AROT13
- BSOT14
- CDES
- DBlock
- EStream
Explanation
ROT13 is a simple substitution cipher sometimes used on Unix systems, primarily for obscuring text rather than providing strong encryption.
Common mistakes.
- B. SOT14 is not a recognized simple cipher used in Unix systems.
- C. DES (Data Encryption Standard) is a block cipher that is much more complex and computationally intensive than a simple substitution cipher like ROT13, and while used on Unix, it's not described as a 'very simple cipher' in the same vein.
- D. 'Block' is a category of ciphers (block cipher), not a specific simple cipher itself.
- E. 'Stream' is a category of ciphers (stream cipher), not a specific simple cipher itself.
Concept tested. Simple Unix ciphers
Topics
#ROT13#Simple Ciphers#Unix Security#Obfuscation
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