Classification trees are a visual way of identifying test objects and data, and pairwise testing is a technique of generating test cases that cover all possible pairs of values from different classifications. Classification trees support pairwise testing by:

Helping to identify inputs to be used by the pairwise test technique, as each class represents a possible value for a test parameter.

Showing the combinations needed to cover all-pairs, as each test case is a selection of one class from each classification.

Helping to identify particular combinations of interest, as the test engineer can use the tree structure to group or prioritize classes based on their relevance or risk.  References  =  ISTQB Advanced Level Test Analyst Syllabus 2019 , section 3.2.3;  Smarter Test Design with Classification Trees and Pairwise Techniques , slides 6-12.

The correct answer is D. The story contains more than one item of functionality.

The story contains more than one item of functionality

A user story should be small, simple, and focused on one item of functionality that delivers value to the user. This story combines two items of functionality: querying the balance and withdrawing money. These items could be separated into two different stories, each with its own acceptance criteria and priority. This would make the stories easier to understand, estimate, test, and deliver 1 .

References =

User Stories | Examples and Template | Atlassian 2 , Section User story best practices

ISTQB Certified Tester Advanced Level Syllabus Test Analyst 3 , Section 2.1.1 Test Analyst Tasks in the Test Process

ISTQB Test Analyst Syllabus and Study Guide 4 , Section 2.1.1 Test Analyst Tasks in the Test Process

The correct answer is A. Functional testing.

Functional testing

Functional testing is the type of testing that focuses on completeness, appropriateness, and correctness characteristics of the application under test. Completeness means that all the functions and features of the application are tested. Appropriateness means that the functions and features are suitable for the intended purpose and meet the user’s needs. Correctness means that the functions and features produce the expected results and do not contain any errors or defects 1 .

References =

ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst 2 , Section 3.2.2 Functionality

ISTQB Certified Tester Advanced Level Syllabus Test Analyst 3 , Section 3.2.2 Functionality

ISTQB Test Analyst Syllabus and Study Guide 4 , Section 3.2.2 Functionality

A decision table is a technique that shows the possible combinations of conditions and actions for a given problem. A decision table that is not collapsed has one test case for each combination of conditions, regardless of whether the actions are the same or different. The tax system specification has three conditions: salary less than €20,000, married, and number of children between three and four. Each condition has two possible values: true or false. Therefore, the number of test cases for a non-collapsed decision table is 2^3 = 8.  References  =

ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst 1 , page 2

Decision tables - IBM 2 , section “Decision table overview”