Experience-Based and Other Techniques CTAL-TA Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   In random testing, which statement best describes how test inputs are generated?

   • AInputs are selected to cover each branch in the code at least once.
   • BInputs are generated by a tool that selects values from a defined input domain, often using a random or pseudo-random process.
   • CInputs are derived from a state model of the system to achieve high state coverage.
   • DInputs are manually created by testers based on their knowledge of the system's business rules.
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2. 7expert · hard

   A test analyst is leading a team of testers in a session-based testing effort for a complex application. The team has limited time and must cover many features. The analyst wants to maximize the effectiveness of the sessions. Which of the following strategies is most likely to achieve this?

   • AHave all testers work on the same feature simultaneously to ensure thorough coverage.
   • BSkip charters and let each tester explore whatever they find interesting.
   • CUse a single test charter for the entire team and have everyone explore the same areas.
   • DAssign each tester a different feature area and have them create a test charter for each session.
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4. 8foundation · easy

   What is the primary characteristic of random testing as a test input generation technique?

   • ATest inputs are generated without predefined test cases, often using a tool or algorithm to produce values from a defined input domain.
   • BTest inputs are derived from a model of the system's expected behavior.
   • CTest inputs are chosen to cover all equivalence partitions and boundary values.
   • DTest inputs are selected based on the tester's experience and intuition about likely defects.
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5. 9foundation · easy

   What is the primary purpose of using checklists in experience-based testing?

   • ATo record the time spent on each test activity.
   • BTo ensure coverage of common risks and areas that might otherwise be overlooked.
   • CTo document the exact steps to reproduce a defect.
   • DTo replace the need for test design techniques.
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6. 10expert · hard

   A test analyst is testing a complex algorithm that processes sensor data. The expected output for a given input is not known, but the analyst knows that if the input data is shifted by a constant, the output should also shift by the same constant. The analyst wants to use a combination of random testing and metamorphic testing. Which of the following approaches best combines these techniques?

   • AUse a test charter to explore the algorithm's behavior with various sensor data.
   • BGenerate random inputs and compare the outputs to a known mathematical model.
   • CUse a checklist of common sensor data processing errors and test each one.
   • DGenerate random inputs, apply the metamorphic relation (shift input, check output shift), and verify the relation holds for each random input.
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