Certified Information Systems Security Professional (CISSP) — Question 156

Prohibiting which of the following techniques is MOST helpful in preventing users from obtaining confidential data by using statistical queries?

Answer options

• A. Sequences of queries that refer repeatedly to the same population
• B. Repeated queries that access multiple databases
• C. Selecting all records from a table and displaying all columns
• D. Running queries that access sensitive data

Correct answer: A

Explanation

Restricting sequences of queries that repeatedly reference the same population is crucial, as it minimizes the risk of users piecing together confidential information through repeated access. The other options, while potentially risky, do not pose as significant a threat to data confidentiality when compared to the accumulation of insights gained from repeated queries on the same dataset.