After a major release, a test analyst reviews the defect reports and notices that many defects were found in the area of user authentication, but the test cases for authentication had high pass rates. What should the test analyst do to improve defect detection in future releases?

Reduce the number of authentication test cases to focus on other areas

Add more test cases for authentication, focusing on boundary values and error handling

Review the test environment configuration for authentication

Ask developers to fix the authentication defects before the next release

A test analyst notices that a high percentage of defects found in the last two releases were detected during system testing, but very few were found during component testing. The defects are spread across multiple modules, with no single module showing a higher concentration. What should the test analyst do first to improve defect detection?

Analyze the test results to identify why component tests are missing these defects

Move more test cases from system testing to component testing

Focus on improving the defect reporting process for system testing

Increase the number of test cases in component testing for all modules

Based on analysis of previous test cycles, a test analyst finds that most defects were missed because test data did not include special characters. What is the most effective way to improve future defect detection?

Increase the number of test cases that use special characters in input data.

Reduce the number of test cases to focus only on high-priority functionality.

Use the same test data but execute tests in a different environment.

Ask developers to review the test cases before execution.

A test analyst is analyzing the results of a test cycle and finds that the defect detection rate is high, but the defect removal efficiency (DRE) is low. What does this indicate?

Many defects are being found, but they are not being fixed promptly

The test environment is not stable

The test cases are not effective at finding defects

The test team is not logging defects correctly

A test analyst notices that defects in a legacy module are often found late in the test cycle. What is a suitable improvement to apply for future test cycles?

Remove the legacy module from the test scope to save time.

Increase the number of testers on the legacy module without changing the test approach.

Schedule testing of the legacy module earlier in the test cycle.

Wait for more defects to be reported by users before adjusting the test plan.

Certified Tester Advanced Level Test Analyst

Domain 5Objective 4

Analyzing Test Results to Improve Defect Detection CTAL-TA Practice Questions (Page 2)

Part of the Software Defect Prevention domain, which makes up ~29% of our current practice bank. ISTQB does not publish an official question count, but from its 120-minute exam (~50–80 total, ~15–23 in this domain), expect 3–5 from this objective — we provide 13 practice questions to prepare you well beyond it. (estimate)

13questions here

3free pages

2concepts

Questions 6–10

6application · medium
After a major release, a test analyst reviews the defect reports and notices that many defects were found in the area of user authentication, but the test cases for authentication had high pass rates. What should the test analyst do to improve defect detection in future releases?
Select an answer first
7application · medium
A test analyst notices that a high percentage of defects found in the last two releases were detected during system testing, but very few were found during component testing. The defects are spread across multiple modules, with no single module showing a higher concentration. What should the test analyst do first to improve defect detection?
Select an answer first
8foundation · easy
Based on analysis of previous test cycles, a test analyst finds that most defects were missed because test data did not include special characters. What is the most effective way to improve future defect detection?
Select an answer first
9application · medium
A test analyst is analyzing the results of a test cycle and finds that the defect detection rate is high, but the defect removal efficiency (DRE) is low. What does this indicate?
Select an answer first
10foundation · easy
A test analyst notices that defects in a legacy module are often found late in the test cycle. What is a suitable improvement to apply for future test cycles?
Select an answer first

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