ISTQB CTAL-TA: Certified Tester Advanced Level Test Analyst (CTAL-TA) v4.0

Last checked November 10, 2026 against the official ISTQB exam page.

1. Question 1The Tasks of the Test Analyst in the Test Process

   A test analyst joins the refinement meetings of an agile team for the first time. Which benefit does this early involvement bring to the testing effort?

   1. AIt lets the test analyst find ambiguous requirements and missing acceptance criteria before code is written, when fixes are cheapest
   2. BIt removes the need for any test execution in later iterations, since the analysis is treated as a complete verification of the product
   3. CIt lets the test analyst write the production code so that the developers can concentrate on the testing tasks
   4. DIt fixes the release date for the product so that stakeholders can plan their marketing campaigns in advance
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   Correct answer: A

   Early involvement lets the test analyst find ambiguities and gaps before development, when defects are cheapest to fix. The other options are wrong: later test execution is still needed, the analyst does not take over production code, and testers do not set release dates.

2. Question 2The Tasks of the Test Analyst in Risk-Based Testing

   A team holds a workshop to list the product risks of a new online banking app. The test analyst then gives each risk a likelihood and an impact rating. Which step of risk-based testing is this?

   1. ARisk monitoring, which tracks how the risk levels change through the project and reports the current status
   2. BTest completion, which summarizes the final risk status in the closing report for the stakeholders
   3. CRisk mitigation, which reduces the likelihood of failure by changing the design or code before testing begins
   4. DRisk assessment, which estimates the likelihood and impact of each identified risk to derive its risk level
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   Correct answer: D

   Assigning likelihood and impact to identified risks is risk assessment, which produces the risk level. Monitoring, mitigation and completion reporting are other steps and do not assign these ratings.

3. Question 3Test Analysis and Test Design

   A form field accepts whole-number ages from 18 to 65. Which set of inputs forms one valid equivalence partition for this field?

   1. AOnly the two values 18 and 65, because they are the only inputs that sit on the edges of the valid range
   2. BOnly the value 30, because it is a typical input that represents the whole valid range for the field
   3. CAll negative integers, which form a valid partition because the system is expected to accept each of these values
   4. DAll integers from 18 to 65, because the system is expected to treat every value in this range the same way
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   Correct answer: D

   An equivalence partition is a set of values the system should treat the same way, so all integers from 18 to 65 form one valid partition. Edge values alone, a single typical value, and negative numbers (an invalid partition) do not form a valid partition of the field.

4. Question 4Test Quality Characteristics

   A test analyst checks that a tax calculation returns exactly the amount required by the rules for each set of inputs. Which quality sub-characteristic is being tested?

   1. ALearnability, which checks how quickly a new user can understand how to use the calculation feature
   2. BFunctional correctness, which checks that results are accurate to the degree of precision the requirements need
   3. CInstallability, which checks how reliably the product can be installed and removed on a target platform
   4. DCo-existence, which checks that the product works while sharing resources with other products on the same system
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   Correct answer: B

   Functional correctness is the degree to which results are accurate to the required precision, which is what the tax check tests. Learnability, co-existence and installability are other quality characteristics and do not describe checking the accuracy of results.

5. Question 5Software Defect Prevention

   Which practice is a defect prevention practice rather than a defect detection practice?

   1. AApplying a shared coding standard and checklists during development to avoid common mistakes before coding
   2. BRunning the regression test suite after every change to find any new failures in the existing functions
   3. CExecuting dynamic tests on the completed system to reveal failures that appear under realistic inputs and loads
   4. DLogging every failure found during system testing into the defect management tool with its severity
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   Correct answer: A

   Coding standards and checklists applied during development stop common mistakes from being introduced, which is prevention. Regression runs, dynamic system tests and failure logging all detect defects that already exist.