How can fault injection be used to verify that a system meets reliability requirements?

By running the system for a long time without any faults

By measuring the system's response time under normal load

By reviewing the code for potential errors

By introducing faults and checking that the system recovers or degrades gracefully without data loss

A company is deploying a new payment processing system. The system must be able to handle a failure in the external payment gateway without losing transactions. The test team has been asked to verify this requirement. Which fault injection approach should they use?

Test the system with a large number of concurrent transactions to see if it crashes.

Use a monitoring tool to observe the system's behavior during normal operation.

Review the code to identify potential error handling issues.

Simulate a failure of the payment gateway and verify that transactions are queued and retried.

A test manager is planning the testing strategy for a new online banking system. The system must be highly reliable and handle failures gracefully. The manager wants to include fault injection in the test plan. What is the primary benefit of using fault injection in this context?

It helps reduce the cost of testing by automating test execution.

It helps verify that the system's error handling and recovery mechanisms work as intended.

It helps ensure that the system is secure against external attacks.

It helps identify performance bottlenecks under high load.

A test team is working on a system that uses a message queue for communication between components. They need to test how the system handles a failure in the message queue. The team wants to use a tool that can simulate this failure without modifying the application code. Which tool capability is most important?

The ability to create test data for the queue.

The ability to generate high CPU load on the system.

The ability to stop or delay messages in the queue.

The ability to measure the system's memory usage.

Which of the following is an example of a fault injection tool?

JMeter, which performs load and performance testing

SonarQube, which analyzes code quality

Selenium, which automates web browser interactions

Chaos Monkey, which randomly terminates instances in a production environment

Certified Tester Advanced Level Technical Test Analyst

Domain 6Objective 4

Fault Injection Tools CTAL-TTA Practice Questions (Page 4)

Part of the Domain 6: Test Tools and Automation domain, which makes up ~25% of our current practice bank. ISTQB does not publish an official question count, but from its 120-minute exam (~50–80 total, ~13–20 in this domain), expect 1–2 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

4concepts

Questions 16–20

16foundation · easy
How can fault injection be used to verify that a system meets reliability requirements?
Select an answer first
17application · medium
A company is deploying a new payment processing system. The system must be able to handle a failure in the external payment gateway without losing transactions. The test team has been asked to verify this requirement. Which fault injection approach should they use?
Select an answer first
18application · easy
A test manager is planning the testing strategy for a new online banking system. The system must be highly reliable and handle failures gracefully. The manager wants to include fault injection in the test plan. What is the primary benefit of using fault injection in this context?
Select an answer first
19application · medium
A test team is working on a system that uses a message queue for communication between components. They need to test how the system handles a failure in the message queue. The team wants to use a tool that can simulate this failure without modifying the application code. Which tool capability is most important?
Select an answer first
20foundation · easy
Which of the following is an example of a fault injection tool?
Select an answer first

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