CAS-003 Question #206: Real Exam Question with Answer & Explanation

The correct answer is A: Data signing. Maintaining the cryptographic integrity of a database means ensuring that data has not been tampered with and that only authorized parties can modify it. Data signing (A) directly addresses cryptographic integrity: digital signatures applied to database records allow any subseque

Question

A sensitive database needs its cryptographic integrity upheld. Which of the following controls meets this goal? (Select TWO).

Options

AData signing
BEncryption
CPerfect forward secrecy
DSteganography
EData vaulting
FRBAC
GLock and key

Explanation

Maintaining the cryptographic integrity of a database means ensuring that data has not been tampered with and that only authorized parties can modify it. Data signing (A) directly addresses cryptographic integrity: digital signatures applied to database records allow any subsequent verification to detect unauthorized modification, because an invalid signature indicates the data has changed since it was signed. Role-Based Access Control (F) enforces integrity by ensuring that only users with appropriate roles have permission to write or modify database records, preventing unauthorized changes in the first place. Encryption (B) provides confidentiality, not integrity on its own. Perfect forward secrecy (C) is a key-exchange property. Steganography (D) hides data but does not verify its integrity. Data vaulting (E) is a backup/retention strategy. Lock and key (G) is physical security.

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