CompTIA Data+ (DA0-001) — Question 199

An analyst is updating a customer contacts database with information obtained from a survey of new customers. Which of the following data manipulation techniques should the analyst use?

Answer options

• A. Join
• B. Append
• C. Transform
• D. Blend

Correct answer: B

Explanation

The correct answer is B, Append, as this technique allows the analyst to add new records to the existing database. The other options, such as Join and Blend, are used to combine data from different sources rather than adding new entries, while Transform refers to changing the format of the data rather than inserting it.