FC0-U71 Software Development Concepts Practice Question
A development team is working on a critical update to an e-commerce website. After deploying the update, they must ensure that existing features (like login and search) still work correctly. Additionally, they want to test the new checkout flow end-to-end. Which TWO types of testing should the team perform?
⚠ Common exam trap
CompTIA often tests the distinction between regression testing and integration testing, where candidates mistakenly choose integration testing for verifying existing features, not realizing integration testing only checks module interfaces, not the full set of unchanged functionalities.
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 (C) is correct because it verifies that existing features like login and search still work after deploying the update, ensuring no new defects were introduced. System testing (D) is correct because it validates the entire integrated system, including the new checkout flow end-to-end, against the specified requirements.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Unit testing
Why it's wrong here
Unit testing tests individual components, not the entire system or regression.
- ✗
Integration testing
Why it's wrong here
Integration testing checks interactions between components, not the full system.
- ✓
Regression testing
Why this is correct
Regression testing ensures existing features still work after changes.
- ✓
System testing
Why this is correct
System testing validates the complete and integrated system.
- ✗
User acceptance testing
Why it's wrong here
UAT is performed by users, not typically by the development team for regression.
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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.