ISTQB CTFL-Foundation Exam - Topic 4 Question 48 Discussion

Actual exam question for ISTQB's CTFL-Foundation exam

Question #: 48
Topic #: 4

A bank is developing a new service that will be delivered via the web. The user interactions are defined as a set of use cases and the service is designed to be available continuously 24/7. In view of the challenging characteristics of the service the test manager has decided that the code should be thoroughly tested at component level.

Which of the following test types will be required during the development? [K2]

AFunctional testing to test security at the system level, load testing at the system level to ensure the system availability is acceptable, regression testing at all levels, structure based testing at the component level only

BFunctional testing to test the use cases at component level, reliability testing to test availability at the integration level, regression testing at the system testing level only, structure based testing at all levels

CFunctional testing of the use cases at system level, load testing at component level to ensure availability is acceptable, regression testing at the system and acceptance levels only, and structure based testing at the integration level only

DFunctional testing to test security at the acceptance level, load testing at the acceptance test level to ensure availability is acceptable, regression testing at the acceptance level only to ensure late changes are made correctly, and structure based testing at the component level

Show Suggested Answer

Suggested Answer: A

For a web-based service designed to be available 24/7, a comprehensive testing approach is necessary to ensure functionality, security, reliability, and performance. Functional testing at the system level will verify the security aspects. Load testing at the system level will ensure the system can handle expected loads and remain available. Regression testing across all levels will confirm that changes do not introduce new defects. Structure-based testing at the component level will ensure the internal structure of components is robust. The ISTQB syllabus outlines these testing types and their importance in different contexts and levels.

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by Alaine at Mar 03, 2026, 02:39 PM

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2 months ago

I remember we discussed the importance of functional testing for use cases, but I'm not sure if it should be at the component level or system level.

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