Question

Which test refers to the retesting of a unit, integration and system after modification, in order to ascertain that the changes have not introduced new faults?

• A. Regression Test
• B. Smoke Test
• C. Alpha Test
• D. Beta Test

Hint:

Regression testing is essential in continuous integration (CI) environments to maintain software quality after updates.

Answer 1

The Correct Option is A

Step 1: Understanding Regression Testing
Regression testing is a software testing technique used to confirm that recent program or code changes have not adversely affected existing features.
It involves:
- Retesting previously tested components after modifications.
- Ensuring that new changes do not introduce defects into existing functionalities.
Step 2: Explanation of Options
- Option (A) Regression Test (Correct): This is the most appropriate choice as regression testing verifies that changes do not introduce new faults.
- Option (B) Smoke Test: This is a preliminary testing method to check basic functionality. It does not involve verifying existing features post-modification.
- Option (C) Alpha Test: Performed before product release, mainly by in-house testers, to catch early bugs.
- Option (D) Beta Test: Conducted by end-users in a real-world environment before final product release.