ISTQB CTAL-TTA Practice Test - Questions Answers, Page 5

When users complain about issues with links on a website, the most appropriate test tool to identify the causes of these failures is a hyperlink tool (answer B). Hyperlink tools are specifically designed to check the validity of links on web pages. They can automatically identify broken or dead links, which is essential for maintaining the quality and user experience of a website. Review tools, static analysis tools, and dynamic analysis tools do not primarily focus on hyperlink verification.

Component testing tools, which are often specific to a programming language, are used to automate unit tests (answer C). These tools help to validate the functionality of individual components or units of code in isolation from the rest of the application. While build automation tools are indeed used by developers and are related to continuous integration (answers A and D), and they can facilitate testing at various levels (answer B), component testing tools' primary purpose is to support the testing of individual components, often through automated unit tests, which can be specific to the language in which the components are written.

In the context of API testing, the defect types generally found are related to the specific interactions with the API, such as issues with data formatting, handling, validation, and the sequencing or timing of API calls. Architectural structural complexity is not typically a defect that would be identified at the API testing level. API tests are concerned with the interface and immediate integration points, not the overarching system architecture, which would be more relevant to design or system-level testing.

The pseudo-code provided for the 'Win' program reads in variables A, B, C, and D. However, only variables A, B, and C are used in the conditional statements to determine if the output will be 'Win' or 'Loose'. Variable 'D' is never used after it is read, which is a classic example of a 'defined but not used' data flow anomaly. This means that while there is an instruction to read a value into variable 'D', there is no subsequent use of this variable in the program's logic or output.

Performance efficiency testing is most commonly associated with system testing. This is the level at which the complete, integrated system is evaluated, and it is typically where performance, load, and stress testing are conducted to assess the system's behavior under various conditions and loads. Performance efficiency testing at this level helps to ensure that the system meets the necessary performance criteria as a whole.

A Technical Test Analyst is primarily involved in the technical aspects of test preparation and execution. One of their typical activities includes the execution of test cases, particularly those that are automated, and the subsequent analysis of any test failures to identify defects and issues. This activity is more technical than defining business processes or training other analysts, and while making decisions based on a business case may be part of their role, it is not an activity directly related to test automation.

To achieve 100% decision coverage with the minimum number of test cases, we need to ensure that every branch of the decision is taken at least once. For the code provided:

The first condition (a>b) is true for the first two test cases and false for the third.

The second condition (b>c) is true for the first test case, false for the second, and does not matter for the third since the first condition is false.

Therefore, with these three test cases, we cover all possible outcomes of the decision, ensuring 100% decision coverage.

Tools that support component testing and the build process are designed to provide a controlled environment where individual units or components of the software can be tested in isolation. This is typically done using stubs, which simulate the behavior of missing components, and drivers, which simulate the behavior of a user or calling program. This isolated environment is essential for unit testing because it allows testers to find defects within the boundaries of a single component before integrating it into the larger system.

In the provided pseudo-code for the Bingo program, the variable MIN is used in the statement MIN = MIN + A without being initialized with a value beforehand. This represents a classic 'use before define' anomaly, as the variable MIN must have an initial value before any operation like addition can be performed on it.