Answer-first summary for fast verification
Answer: Format-preserving encryption
Format-preserving encryption (C) is the optimal choice because it meets all key requirements: it protects sensitive compensation data through encryption while preserving the original data format, allows reversible decryption to identify specific outliers, and enables operations like sorting and time-series analysis needed to track changes over time. Cryptographic hashing (A) is irreversible, making outlier identification impossible. Redaction (B) permanently removes data, eliminating the ability to analyze trends. Generalization (D) is also irreversible and would obscure the precise data needed to identify specific outliers. The community discussion strongly supports C with 81% consensus and detailed reasoning about its reversibility and format preservation capabilities.
Author: LeetQuiz Editorial Team
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An organization needs to analyze how bonus compensation has evolved over time to detect employee outliers and rectify earning disparities. This analysis must be conducted without revealing any individual's sensitive compensation data, and the process must be reversible to pinpoint the specific outliers.
Which Cloud Data Loss Prevention API technique should be used?
A
Cryptographic hashing
B
Redaction
C
Format-preserving encryption
D
Generalization
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