IBM SPSS Statistics Level 1 v2 — Question 17

Which of the following is TRUE?

Answer options

• A. The Modify stage can keep or drop records
• B. The DB2 Connector stage can have, at most, one input link
• C. The Copy stage can be used for implicit data type conversions
• D. When runtime column propagation is enabled, you can use output mapping on a stage to rename or drop columns

Correct answer: D

Explanation

Option D is correct because enabling runtime column propagation allows for dynamic adjustments to the output schema, including renaming or dropping columns. Option A is incorrect as the Modify stage typically alters records but does not specifically keep or drop them. Option B is wrong since the DB2 Connector stage can actually have multiple input links. Option C is false because the Copy stage does not perform implicit data type conversions; it simply copies data as is.