CCSP Cloud Data Security Practice Question
A cloud security team is implementing data loss prevention for a data lake that stores customer support logs. They need to redact credit card numbers from the logs before they are used for analytics. Which DLP de-identification technique should be applied?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Masking
Masking replaces sensitive data with a placeholder, such as replacing credit card digits with asterisks, while preserving format for analytics. Tokenization replaces data with tokens but requires a token vault. Masking is simpler for one-way redaction.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Date shifting
Why it's wrong here
Date shifting modifies dates; irrelevant for credit card numbers.
- ✗
Bucketing
Why it's wrong here
Bucketing groups values into ranges; not suitable for credit card numbers.
- ✓
Masking
Why this is correct
Masking obscures parts of the data (e.g., 'XXXX-XXXX-XXXX-1234') and is a common redaction technique.
- ✗
Tokenization
Why it's wrong here
Tokenization replaces data with tokens that can be reversed; not ideal for permanent redaction.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCSP exam.