CAS-003 · Question #394
CAS-003 Question #394: Real Exam Question with Answer & Explanation
The correct answer is C: Integration testing. In the SDLC, the typical testing progression is: unit testing (individual components) → peer/code review → integration testing (combining components) → regression testing → UAT. Peer review must occur before integration testing because its purpose is to validate that a code chang
Question
Options
- ARegression testing
- BUser acceptance testing
- CIntegration testing
- DUnit testing
- ELoad testing
Explanation
In the SDLC, the typical testing progression is: unit testing (individual components) → peer/code review → integration testing (combining components) → regression testing → UAT. Peer review must occur before integration testing because its purpose is to validate that a code change is correct and ready to be merged into the build. If code is integrated into a build before being peer reviewed, defects may cascade through multiple dependent components, making them much harder and more time-consuming to isolate and fix. Ensuring peer review is completed before integration testing is the most efficient gate point - it catches issues at the cheapest moment. Unit testing (D) happens even earlier in the developer's local workflow, before peer review is needed. Regression (A), UAT (B), and load testing (E) all occur after integration.
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