CSI CSI Testing & Quality Assurance 1 — Questions and Answers
Question 1: Which testing phase validates that integrated systems exchange data correctly and meet business requirements before go-live?
- Unit testing
- User Acceptance Testing (UAT) (Correct answer)
- Smoke testing
- Regression testing
Correct answer: User Acceptance Testing (UAT)
UAT is the final validation phase where end-users confirm that integrated systems meet business requirements before production deployment.
Question 2: A system integrator must verify that two enterprise applications exchange messages without data loss. Which testing approach is most appropriate?
- Load testing
- End-to-end integration testing (Correct answer)
- Unit testing
- Alpha testing
Correct answer: End-to-end integration testing
End-to-end integration testing validates complete message flows across system boundaries to ensure no data is lost in transit.
Question 3: What is a 'test harness' in the context of system integration testing?
- A physical rack for mounting servers
- A collection of stubs and drivers that simulate system components (Correct answer)
- A compliance checklist
- A load balancer configuration
Correct answer: A collection of stubs and drivers that simulate system components
A test harness is a framework of stubs and drivers used to simulate missing or unavailable components during integration testing.
Question 4: During integration testing, a 'stub' is used to:
- Log test results to a database
- Simulate a downstream component that is not yet available (Correct answer)
- Measure network latency
- Encrypt test data
Correct answer: Simulate a downstream component that is not yet available
A stub simulates a downstream dependency, returning predetermined responses so the component under test can be validated independently.
Question 5: Which defect classification indicates a critical system integration failure that blocks all further testing?
- Minor
- Cosmetic
- Blocker/Showstopper (Correct answer)
- Enhancement
Correct answer: Blocker/Showstopper
A blocker or showstopper defect halts the entire testing effort because the core integration path cannot function until it is resolved.
Question 6: What does 'traceability matrix' provide in a CSI testing project?
- Network topology diagram
- Mapping between requirements and corresponding test cases (Correct answer)
- List of third-party vendors
- Database schema documentation
Correct answer: Mapping between requirements and corresponding test cases
A traceability matrix maps each business requirement to one or more test cases, ensuring complete test coverage.
CSI CSI Testing & Quality Assurance 1
Which testing phase validates that integrated systems exchange data correctly and meet business requirements before go-live?