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ISQI ISTQB Certified Tester Advanced Level - Test Automation Engineering CTAL-TAE (Syllabus v2.0) Sample Questions:

1. An automated test case that should always pass sometimes passes and sometimes fails intermittently (non- deterministic behavior) when executed in the same test environment, even if no code (i.e., SUT code or the test automation code) has been changed. Which of the following statements about the root cause of this non- deterministic behavior is TRUE?

A) Determining the specified root cause is certainly easier than if the automated test always fails (deterministic behavior)
B) The specified root cause is a race condition that can be identified by also analyzing the log files of the test case, the SUT, and the TAF
C) Determining the specified root cause may require, in addition to the TAE, the support of others such as developers and system engineers
D) The specified root cause must be in the instability of the test environment, since no code has been changed

2. Automated tests run by a TAS on a SUT can be subject to sudden bursts of messages to log during their execution. All log messages that occur during execution must be permanently stored in the corresponding test execution logs by the TAS for later analysis. If logging is not performed correctly, these bursts can reduce the execution speed of these automated tests, causing them to produce unreliable results. Which of the following solutions would you expect to be MOST useful to address this issue for TAS logging?

A) Use a Network Time Protocol (NTP) server to ensure that the clocks of the machines running TAS and SUT are synchronized with a common time source
B) Log all the messages directly on the corresponding log files associated with the specific execution to ensure the permanent storage of test execution logs
C) Avoid logging the messages that occur during the specified bursts to minimize any potential performance overhead in test execution
D) Log all the messages in memory using a circular buffer and periodically flush the buffer to the corresponding log files associated with the specific execution

3. A TAS that performs automated testing in a single test environment was successfully manually installed and configured from a central repository, with all its components in the correct versions. It was also verified that all TAS components in this environment are capable of providing reliable and repeatable performance. The TAS will be used to run several suites of automated regression test scripts on various SUTs in the test environment. Your current goal is to complete all preliminary verifications to ensure that the TAS works correctly. Which of the following activities would you perform FIRST?

A) Check whether all regression test scripts in a given suite have expected results
B) Run a given suite multiple times using TAS to determine whether all regression test scripts always provide the same result
C) Create scripts to automatically install and configure the TAS in the test environment from the central repository
D) Check whether the TAS connectivity to all required internal systems, external systems, and interfaces is available

4. Consider choosing an approach for the automated implementation of manual regression test suites written at the UI level for some already developed web apps. The TAS is based on a programming language that allows the creation of test libraries and provides a capture/playback feature that allows recognition and interaction with all widgets in the web UIs being tested. The automated tests will be implemented by team members with strong programming skills. The chosen approach should aim to reduce both the effort required to maintain automated tests and the effort required to add new automated tests. Which of the following approaches would you choose?

A) Structured scripting
B) Linear scripting
C) Test-Driven Development (TDD)
D) Capture/playback

5. Automated tests at the UI level for a web app adopt an asynchronous waiting mechanism that allows them to synchronize test steps with the app, so that they are executed correctly and at the right time, only when the app is ready and has processed the previous step: this is done when there are no timeouts or pending asynchronous requests. In this way, the tests automatically synchronize with the app's web pages. The same initialization tasks to set test preconditions are implemented as test steps for all tests. Regarding the pre- processing (Setup) features defined at the test suite level, the TAS provides both a Suite Setup (which runs exactly once when the suite starts) and a Test Setup (which runs at the start of each test case in the suite).
Which of the following recommendations would you provide for improving the TAS (assuming it is possible to perform all of them)?

A) Implement the initialization tasks aimed at setting the preconditions of the tests within the Suite Setup feature at the test suite level
B) Implement the initialization tasks aimed at setting the preconditions of the tests within the Test Setup feature at the test suite level
C) Adopt a manual synchronization with the app's web pages using dynamic waits via polling instead of the current automatic synchronization
D) Adopt a manual synchronization with the app's web pages using hard-coded waits instead of the current automatic synchronization

Solutions: