ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question
A development team wants to copy a slice of production customer data into a QA environment. Automated tests require valid dates, account numbers, and inter-row relationships, but compliance demands that the values cannot be recognized or reversed to the original PII. Which secure test-data technique most directly meets these requirements?
Obfuscation that scrambles each sensitive value while preserving its format
Tokenization that replaces each value with a centrally stored lookup token
Sanitization that deletes or blanks all personally identifiable fields
Aggregation that converts the dataset to statistical summaries only
Obfuscation (often called data masking) modifies each sensitive field-such as scrambling or substituting characters-so values are unintelligible but still look realistic and keep relational links intact. This preserves format for automated tests without maintaining a lookup table that could be used to restore the originals. Tokenization relies on a reversible mapping stored elsewhere, sanitization removes the fields entirely and breaks tests that need them, and aggregation only provides statistical summaries, not row-level data required for functional QA.
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ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Testing
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