CTAL-TA_Syll2019 Dumps with Practice Exam Questions Answers

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.

Interoperability is the degree to which two or more systems or components can exchange and use information. It is a crucial quality characteristic for an e-commerce product that needs to interface with backend applications, such as finance, stock control and order delivery. The test plan must include tests to verify that the COTS package can communicate and integrate with the existing systems and applications, and that the data and functionality are consistent and accurate across the interfaces. References = ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst, page 10, section 1.2.2.2.

Pairwise testing is a technique that reduces the number of test cases by testing only pairs of values for each data item, instead of testing all possible combinations. Pairwise testing is based on the assumption that most defects are caused by interactions of at most two factors. Pairwise testing can be applied to this problem using the classification tree, which shows the data items and their values. By using pairwise testing, the number of test cases will be lower than exhaustive testing, which would require testing every combination of values for each data item. References =

• ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst1, page 2
• Data Combination Test (DCoT) | TMap2, section “Coverage level”
• Pairwise Software Testing - GeeksforGeeks3, section “Introduction”

The correct answer isD.Automate the testing for the credit card exploratory tests so they can be used for confirmation testing after the defect is fixed.

A.Enter your exploratory test cases with detailed test steps into the Test Management System

This is incorrect because entering the test cases into the Test Management System is not enough to document and track the exploratory testing process. The test cases should also include the expected results, actual results, and defects found during the testing. Moreover, the test cases should be organized into a clear and logical structure that reflects the test charter and scope.

B.Close the session and start a new session with a new charter

This is incorrect because closing and starting a new session with a new charter would mean losing all the information and data collected during the previous session. This would make it difficult to resume and continue the testing process from where it left off. Instead, it would be better to use a consistent and stable session with a single charter that covers all the requirements and features of the system.

C.Continue the session and conduct the testing for debit cards

This is incorrect because continuing the session and conducting only one type of card (debit) would not provide a comprehensive coverage of all possible scenarios and outcomes of accepting credit cards. It would also limit the scope of testing to only one aspect of payment processing, which may not reflect all the business rules, validations, exceptions, or integrations involved in this domain.

D.Automate the testing for the credit card exploratory tests so they can be used for confirmation testing after the defect is fixed

This is correct because automating some or all of the exploratory tests can help to save time, effort, and resources by reducing manual effort and increasing efficiency. It can also help to improve accuracy, consistency, and reliability by eliminating human errors and biases. Moreover, automating some or all of the exploratory tests can enable them to be reused for confirmation testing after fixing any defects found during exploratory testing.Confirmation testing is a type of functional testing that verifies that all requirements are met by performing regression tests on previously tested functionality1.

State transition testing is a technique that models the behavior of a system as a finite number of states and the transitions between them. It is suitable for testing systems that have different outcomes depending on the previous history of inputs and events. In this case, the ATM system has different states depending on whether the user has entered a valid or invalid PIN code, and how many times they have tried. 1-switch coverage is a criterion that requires testing all possible pairs of transitions from one state to another. This can help to find failures that occur when the system changes from one state to another, or when the system does not change state when it should. For example, 1-switch coverage would test the following scenarios:

• User enters a valid PIN code on the first try and requests a cash advance (valid transition from unauthenticated to authenticated state)
• User enters an invalid PIN code on the first try and then a valid PIN code on the second try and requests a cash advance (valid transition from unauthenticated to authenticated state after one invalid attempt)
• User enters an invalid PIN code on the first and second try and then a valid PIN code on the third try and requests a cash advance (valid transition from unauthenticated to authenticated state after two invalid attempts)
• User enters an invalid PIN code on the first, second, and third try and the system rejects the card (valid transition from unauthenticated to rejected state after three invalid attempts)
• User enters a valid PIN code on the first try and then requests a cash advance twice (invalid transition from authenticated to authenticated state without inserting the card again)
• User enters a valid PIN code on the first try and then removes the card and inserts it again and requests a cash advance (invalid transition from authenticated to unauthenticated state without entering the PIN code again)

References = ISTQB Advanced Level Test Analyst Syllabus 2019, section 3.2.3; How to Design Test Cases Using State Transition Testing Technique?; 0 and 1 - Switch Coverage in State Transition Testing?