Which of the following is BEST provided by symmetric cryptography?

A.
Confidentiality

B.
Integrity

C.
Availability

D.
Non-repudiation

Explanation:
Symmetric cryptosystems is able to provide confidentiality, but not authentication or nonrepudiation.
Incorrect Answers:
B: Hashing algorithms provide data integrity.
C: Availability is an Access Control concern. It is not provided by symmetric cryptography.
D: Symmetric cryptosystems is unable to provide authentication or nonrepudiation.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, pp. 159, 783, 873