ISC2 Systems Security Certified Practitioner (SSCP) Practice Question
An SSCP-certified administrator is automating nightly backups of critical configuration files from on-premises servers to an encrypted Amazon S3 bucket. After each transfer, the automation computes a SHA-256 digest of every file and compares it with a pre-generated checksum to verify they match. Which core security objective is the administrator primarily addressing with this hash comparison step?
The administrator is focusing on the integrity pillar of the CIA triad. By generating a SHA-256 hash before transmission and comparing it with a newly calculated hash after the files reach Amazon S3, the process detects any unauthorized or accidental alteration that might have occurred during transit or storage. Matching digests confirm the data remains accurate, complete, and unmodified. While encryption in the S3 bucket protects confidentiality, the act of verifying hashes is aimed at ensuring data integrity, not availability or non-repudiation. Availability concerns continuous access to data, and non-repudiation provides proof of origin and receipt-neither is the primary goal of this checksum comparison.
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ISC2 Systems Security Certified Practitioner (SSCP)
Security Concepts and Practices
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