CompTIA Project+ (PK0-004) — Question 310

A project manager is concerned that a planned change might damage the key functionality of a major system. The MOST important activity to perform is:

Answer options

• A. a quality control check.
• B. an in-depth impact evaluation.
• C. software version control.
• D. a regression plan.

Correct answer: D

Explanation

The correct answer is D, as a regression plan is essential to ensure that any changes made do not adversely affect existing functionality. A quality control check (A) focuses on assessing the quality of the output, while an in-depth impact evaluation (B) analyzes potential effects but doesn’t specifically address functionality preservation. Software version control (C) is important for tracking changes but does not directly mitigate risks to key functionalities.