FC0-U71 Software Development Concepts Practice Question
After deploying a new version of a web application, the QA team runs a set of test cases that were previously executed on the old version to ensure that existing functionality still works correctly. This testing is performed to detect any unintended side effects of the changes. What type of testing is this?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Regression testing
Regression testing verifies that new code changes do not break existing functionality.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Integration testing
Why it's wrong here
Integration testing checks interactions between components.
- ✗
Smoke testing
Why it's wrong here
Smoke testing checks basic critical functionality, not necessarily re-running old tests.
- ✗
Acceptance testing
Why it's wrong here
Acceptance testing validates against user requirements.
- ✓
Regression testing
Why this is correct
Regression testing re-runs previous tests to ensure no regressions.
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Same concept, more angles
2 more ways this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A testing team is verifying a new version of an e-commerce website. They run a set of pre-existing test cases to ensure that recent changes have not broken any previously working functionality. What type of testing is this?
medium- A.Unit testing
- B.System testing
- ✓ C.Regression testing
- D.Integration testing
Why C: Regression testing checks that new code changes do not adversely affect existing features.
Variation 2. A team is testing a software application after a bug fix. They want to ensure that the fix did not introduce new bugs in previously working functionality. Which type of testing should they perform?
medium- ✓ A.Regression testing
- B.User acceptance testing
- C.Integration testing
- D.Unit testing
Why A: Regression testing verifies that recent changes have not adversely affected existing features.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.