CTFL-V4-0: Certified Tester Foundation Level (CTFL) v4.0Demo

By ISTQB · Question Mode

QuestionQ276

Chapter 2: Testing Throughout the Software Development Lifecycle

A tester verifies the logic of a new authentication service. Because the actual database and external authentication API are still being developed, the tester substitutes the database connection with a mock that returns predefined user data.

At which testing level was this test performed?

  • A Component integration testing
  • B Component testing
  • C System integration testing
  • D System testing
Explanation

Component testing verifies an individual software component in isolation. Mocks replace unavailable or external dependencies so the authentication service’s own logic can be evaluated independently.

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