Which of the following best describes data masking?

Question

Options

• AA method for creating similar but inauthentic datasets used for software testing and user training.
• BA method used to protect prying eyes from data such as social security numbers and credit card
• CA method where the last few numbers in a dataset are not obscured. These are often used for
• DData masking involves stripping out all digits in a string of numbers so as to obscure the original

• A
  90% (27)
• B
  7% (2)
• C
  3% (1)

Explanation

Data masking is a data obfuscation technique that creates a structurally similar but fictitious version of data, primarily used for software testing and user training environments where real sensitive data should not be exposed. Option B describes data redaction or tokenization (hiding specific fields like SSNs). Option C describes partial masking or truncation (e.g., showing only the last 4 digits of a card number). Option D describes data scrubbing or nulling. True data masking replaces real data with realistic-looking fake data, preserving format and referential integrity while protecting actual values.

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