Fault Injection Tools CTAL-TTA Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A test manager is planning the testing strategy for a new e-commerce platform. The platform must be highly reliable and handle failures gracefully. The manager wants to include fault injection in the test plan. However, the team has limited time and resources. What is the most effective way to prioritize fault injection testing?

   • AInject faults only during the final testing phase to avoid disrupting development.
   • BInject faults in all components equally to ensure comprehensive coverage.
   • COnly inject faults in components that are known to have issues.
   • DFocus on injecting faults in the most critical components and failure scenarios.
   Reveal Solution Discussion Select an answer first
2. 12expert · hard

   A test team is working on a distributed system that uses multiple services. They need to test how the system handles a failure in one of the services. The team wants to use a tool that can inject faults into the services without requiring code changes. However, they also need to ensure that the tool does not affect the production environment. Which tool capability is most important?

   • AThe ability to create detailed test reports.
   • BThe ability to generate high CPU load on the services.
   • CThe ability to measure code coverage of the test suite.
   • DThe ability to run in a test environment only.
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A team is testing a microservices-based application. They need to verify that the application can handle a failure in one of its internal services without affecting the entire system. The team wants to use a tool that can inject faults into the services without requiring code changes. Which tool capability is most important?

   • AThe ability to create detailed test reports.
   • BThe ability to generate high CPU load on the services.
   • CThe ability to intercept and modify network traffic between services.
   • DThe ability to measure code coverage of the test suite.
   Reveal Solution Discussion Select an answer first
5. 14expert · hard

   A team is testing a safety-critical system that controls a nuclear reactor. They need to verify that the system can handle a failure in a critical sensor. The team has access to the hardware and can use specialized equipment. However, they must ensure that the fault injection does not cause any damage to the system or the environment. Which fault injection technique is most appropriate?

   • AUse a simulation environment to model the sensor failure.
   • BUse a hardware fault injection tool to introduce glitches on the sensor lines.
   • CUse a network simulator to drop packets between the sensor and the controller.
   • DUse a software fault injection tool to corrupt the sensor data in memory.
   Reveal Solution Discussion Select an answer first
6. 15expert · hard

   A test team is working on a system that uses a third-party API for payment processing. They need to test how the system handles a failure in the API. The team wants to use a tool that can simulate this failure without modifying the application code. However, they also need to ensure that the tool does not affect the performance of the system during testing. Which tool capability is most important?

   • AThe ability to measure code coverage of the test suite.
   • BThe ability to create detailed test reports.
   • CThe ability to inject faults with minimal overhead.
   • DThe ability to generate high CPU load on the system.
   Reveal Solution Discussion Select an answer first