Page 418 - (ISC)² CISSP Certified Information Systems Security Professional Official Study Guide

Advanced Encryption Standard Rijndael cipher?

A. 56 bits

B. 128 bits
C. 192 bits

D. 256 bits

6. Which one of the following cannot be achieved by a secret key
cryptosystem?

A. Nonrepudiation

B. Confidentiality

C. Authentication

D. Key distribution

7. When correctly implemented, what is the only cryptosystem known
to be unbreakable?

A. Transposition cipher

B. Substitution cipher

C. Advanced Encryption Standard

D. One-time pad

8. What is the output value of the mathematical function 16 mod 3?

A. 0

B. 1

C. 3

D. 5

9. What block size is used by the 3DES encryption algorithm?
A. 32 bits

B. 64 bits

C. 128 bits

D. 256 bits