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

1. In a first possible implementation, the automated test scripts within a suite locate and interact with elements of a web UI indirectly through the browsers using browser-specific drivers and APIs, provided by an automated test tool used as part of the TAS. In an alternative implementation, these test scripts locate and interact with elements of the same web UI directly at the HTML level by accessing the DOM (Document Object Model) and internal JavaScript code. The first possible implementation:

A) Has a lower level of intrusion than the alternative implementation, and therefore its test scripts are less likely to produce false positives
B) Has a lower level of intrusion than the alternative implementation, and therefore its test scripts are more likely to produce false positives
C) Has the same level of intrusion as the alternative implementation, and therefore the risk of test scripts producing false positives is the same in both cases
D) Has a higher level of intrusion than the alternative implementation, and therefore its test scripts are less likely to produce false positives

2. A release candidate of a SUT, after being fully integrated with all other necessary systems, has successfully passed all required functional tests (90% were automated tests and 10% were manual tests). Now, it is necessary to perform reliability tests aimed at evaluating whether, under certain conditions, that release will be able to guarantee an MTBF (Mean Time Between Failures) in the production environment higher than a certain threshold (expressed in CPU time). Which of the following test environments is BEST suited to perform these reliability tests?

A) Local development environment
B) Build environment
C) Preproduction environment
D) Integration environment

3. An automated test script makes a well-formed request to a REST API in the backend of a web app to add a single item for a product (with ID = 710) to the cart and expects a response confirming that the product is successfully added. The status line of the API response is HTTP/1.1 200 OK, while the response body indicates that the product is out of stock. The API response is correct, the test script fails but completes, and the message to log is: The product with ID = 710 is out of stock. Cart not updated. When this occurs, you are already aware that both the failed test and the API are behaving correctly and that the problem is in the test data. The TAS supports the following test logging levels: FATAL, ERROR, WARN, INFO, DEBUG. Which of the following is the MOST appropriate test logging level to use to log the specified message?

A) WARN
B) FATAL
C) DEBUG
D) INFO

4. 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) Adopt a manual synchronization with the app's web pages using hard-coded waits instead of the current automatic synchronization
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) Implement the initialization tasks aimed at setting the preconditions of the tests within the Suite Setup feature at the test suite level

5. A TAS is used to run on a test environment a suite of automated regression tests, written at the UI level, on different releases of a web app: all executions complete successfully, always providing correct results (i.e., producing neither false positives nor false negatives). The tests, all independent of each other, consist of executable test scripts based on the flow model pattern which has been implemented in a three-layer TAF (test scripts, business logic, core libraries) by expanding the page object model via the facade pattern. Currently the suite takes too long to run, and the test scripts are considered too long in terms of LOC (Lines of Code).
Which of the following recommendations would you provide for improving the TAS (assuming it is possible to perform all of them)?

A) Split the suite into sub-suites and run each of them concurrently on different test environments
B) Implement a mechanism to automatically reboot the entire web app in the event of a crash
C) Modify the architecture of the SUT to improve its testability and, if necessary, the TAA accordingly
D) Modify the TAF so that test scripts are based on the page object model, rather than the flow model pattern

Solutions: