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In a scenario where a new feature affects both backend logic and frontend display, which combination of testing levels should be prioritized to catch all related bugs?

hard📝 Application Q9 of 15
Testing Fundamentals - Testing Types and Levels
In a scenario where a new feature affects both backend logic and frontend display, which combination of testing levels should be prioritized to catch all related bugs?
APerformance Testing and Integration Testing
BIntegration Testing and Acceptance Testing
CSystem Testing and Unit Testing
DUnit Testing and UI Testing
Step-by-Step Solution
Solution:
  1. Step 1: Identify affected areas

    The new feature impacts backend logic (code) and frontend display (UI).
  2. Step 2: Match testing levels to areas

    Unit testing checks backend logic in isolation; UI testing checks frontend display issues.
  3. Step 3: Exclude other options

    Integration testing checks module interaction but UI testing is needed for frontend; acceptance testing is broader; performance testing is unrelated here.
  4. Final Answer:

    Unit Testing and UI Testing -> Option D
  5. Quick Check:

    Backend + frontend bugs = Unit + UI Testing [OK]
Quick Trick: Combine unit and UI testing for backend and frontend bugs [OK]
Common Mistakes:
  • Ignoring UI testing for frontend bugs
  • Choosing only integration or system testing
  • Confusing acceptance testing with UI testing

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