Certified Tester Foundation Lever – Agile Tester (CTFL-AT) Interview Questions

While some interviewers have their unique asking techniques, most job interviews follow a conventional set of questions and replies (including some of the most often-asked behavioral interview questions). Here are some of the most often asked interview questions, as well as the greatest responses to them. Let’s get started right now with some professional advice on preparing for the Certified Tester Foundation Lever-Agile Tester (CTFL-AT) Interview:

1. What exactly do you mean by exploratory testing, and when is it useful?

Exploratory testing, as the name implies, is nothing more than investigating the test case, discovering the software, what this software does, what this software does not do, what this testing does, and what does not work. It is also a hands-on technique in which testers are involved in as little preparation as possible and as much execution as possible.

Exploratory testing procedures;

• Firstly, architectural schematics and use cases are educated guesses
• Previous flaws
• Next, discussions on Error Handling
• Checklists and questions

2. What are the different sorts of testing techniques?

Test procedures are used to detect flaws while also reducing the amount of test cases.

The following are the several sorts of testing techniques:

• Firstly, partitioning by equivalence
• Secondly, analysis of boundary values
• Next, cause-and-effect graphing/decision table testing
• Transition tables for states
• All orthogonal pair testing Array evaluation
• Further, classification is not required.

3. How effective are these testing techniques in (CTFL-AT)?

• 1) Equivalence partitioning entails categorising test situations into groups that are treated in the same manner.
• 2) Boundary value analysis: this entails creating division boundaries and then testing for them.
• 3) Decision table testing/graphical cause-effective approach: This technique entails defining and testing for various combinations of conditions.
• 4) Table state transition testing entails identifying all forms of valid states and transitions that must be validated.
• 5) All pair testing/orthogonal array testing: This entails identifying the numerous configuration possibilities that must be checked.
• 6) Classification tree approach: This method use graphical notations to express the test circumstances and combinations that are handled by the test cases.

4. What exactly is the distinction between a bug, an error, a detect, and a failure?

• Error: The discrepancy between the true and accurate outputs of a software programme.
• Failure happens when a user feels that a software application is no longer providing the promised services.
• Detect: In the context of testing, it is the discrepancy between predicted and actual results. It is a divergence from the customer’s specifications.
• A bug is a programming error or an inaccurate status that allows the software to execute correctly without causing the entire application to deliver wrong results.

5. Why is software testing so critical?

The following are the primary causes;

• Firstly, to discover, fault, and fix flaws in software as it is being developed.
• Secondly, to guarantee that an application’s users or clients are satisfied and that it is reliable.
• Next, improve the software’s dependability and quality.
• Provide high-quality software applications.

6. What are the various black-box testing methods?

During black box testing, the tester is not aware of the internal architecture or implementation of the capability.

The block box testing methodologies are as follows:

• Firstly, techniques for equivalence partitioning testing
• BVA (Boundary Value Analysis) is a test procedure.
• Next, testing of decision tables
• Testing for state transitions
• Case testing should be use.

7. What information should a bug or defect report contain?

Bug/defect reporting is a document that reports on any weakness in a component or system that can cause the component or system to fail to fulfil its necessary activity.

A defect/bug report can be create in three ways:

• Find the flaw: Detect the flaw before distributing the product to the consumer.
• Report a flaw: Inform the developer team about the flaw.
• Accept defect: The developer decides whether to accept or reject the bug.

8. What exactly is a test plan?

A test plan is just a contract between customers/testers and users.

• Firstly, the project team will create and plan test methods that balance test approaches.
• Next, without a document test, the test case cannot be validate or analyze, and no test case can be repeat.
• A test plan specifies the overall test strategy, objectives, and user approach.

9. How do you put a web application’s login feature to the test?

The many methods for testing the login feature of web apps;

• Firstly, Sign in with your legitimate login information first, then exit the web browser, then reopen it to see if you are sign in to the system.
• The next step is session management, which involves keeping track of user login information via cookies or online sessions.
• Sign in and out again -> return to the login screen -> ensure you are properly log out.
• Login -> return to the login page -> do you see the login page?
• Sign in to one online browser page, then go to the second login page, and see whether you need to sign in again.
• Now login -> change the password -> logout -> you may log in to the web browser again using the old login information.

10. What are the various black box testing methods?

During black box testing, the tester is not aware of the internal architecture or implementation of the capability.

The block box testing methodologies are as follows:

• Techniques for equivalence partitioning testing
• BVA (Boundary Value Analysis) is a test procedure.
• Testing of decision tables
• Testing for state transitions
• Case testing should be use.

11. What information should a bug or defect report contain?

Bug/defect reporting is a document that reports on any weakness in a component or system that can cause the component or system to fail to fulfil its necessary activity.

A defect/bug report can be create in three ways:

• Find the flaw: Before distributing the product to the consumer, find the flaw.
• Report a flaw: Inform the development team about the flaw.
• Accept defect: The developer decides whether to accept or reject the bug.

12. What are the different sorts of software testing techniques?

The various software testing approaches are as follows;

• Manual testing
• Automation testing
• Performance testing
• Security testing
• Black-box testing
• White-box testing

13. What exactly is acceptance testing?

The client creates acceptance tests to ensure that the system is functioning properly. Acceptance tests represent the interests of the consumer. The acceptance test assures the client that the application contains the necessary features and functions properly.

14. What exactly is accessibility testing?

An accessibility testing tool that aids in the detection of accessibility flaws. Using the axe chrome extensions, you may use the debugger mode to detect accessibility flaws on your website.

15. What exactly is an application programming interface (API)?

An API is a collection of functions made available by an operating system or other system software. To request the service, an application software calls the functions. An API specifies how to call functions and what the results should be.

16. What exactly is automate testing?

Automated tests conduct repetitive activities on your application and compare expected and actual data. It employs software to validate test implementation, which in most circumstances helps to minimize test time and simplify the process.

17. What exactly is agile testing?

Agile testing is a form of software testing approach that adheres to the concepts of agile software development application development.

Agile testing includes the following testing activities:

• Providing specific examples to guide growth
• The question is being ask to put ideas and assumptions to the test.
• Exploratory testing and automated testing

18. Explain Adhoc Testing in (CTFL-AT).

Adhoc testing is a way of evaluating software that is unscripted and at random. It’s similar to “single-use” testing. It is sometimes call to as exploratory testing, negative testing, or monkey testing. However, the definition of “ad hoc” involves the use of manual testing techniques.

19. What exactly is bottom-up testing in (CTFL-AT)?

Bottom-up testing takes advantage of the incoming input to decipher the message. Decoding is the process of comprehension.

• Lower level components are group together in clusters to execute a certain software function.
• A driver primarily coordinates and supports the input/output of the test case.
• Cluster testing is aid by the bottom-up approach.
• The drivers will be remove from the program structure using the bottom-up method, allowing clusters to be join.

20. Explain the term BETA testing in (CTFL-AT).

BETA testing is a sort of test practice that is carry out by real users of software application development in a real-time setting.

• Firstly, it is always done at the customer’s location.
• It will not be carry out by the independent testing team.
• Next, it is open to the market and the general public.
• It is mostly use for software products.
• Also, it’s essentially black-box testing.
• It is sometimes refer to as field testing.

21. What exactly is an independent testing, and what are the dangers associate with it?

Independent testing is nothing more than tests performed by the person who wrote the code. Tested by another member of that team or by a member of the independent test team.

There is some danger in independent testing.

• Isolation and a breakdown in communication
• Relationship level
• Isolation from the border (from a business standpoint)
• Independent testing may become a stumbling block.
• Developers may lose sight of their duty and quality.

22. What are the testing principles?

The seven principles of software testing are as follows:

• Testing aids in the detection of mistakes in software development.
• Extensive testing is not permitted in testing.
• Errors and incompleteness should be reduced.
• Clustering is not permitted.
• Produce the efficiency
• The software context can be tested.
• Avoiding incorrect conclusions results in fewer errors/bugs.

23. What is the difference between a Product Backlog and a Sprint Backlog?

The project owner maintains a product backlog that includes all of the product’s features and requirements. Sprint backlog may be thought of as a subset of product backlog that only comprises features and requirements relevant to that given sprint.

24. Describe the concept of Velocity in Agile in (CTFL-AT).

Velocity is a statistic that is calculate by adding all effort estimates associated with complete user stories in an iteration. It forecasts how much work Agile can finish in a sprint and how long a project will take to complete.

25. Describe Pair Programming and its advantages in (CTFL-AT).

Pair programming is a technique in which two programmers collaborate as a team, with one writing code and the other reviewing it. They can both exchange roles.

Benefits:

• Improved code quality: Because the second partner evaluates the code concurrently, the odds of error are reduce.
• It is simple to share knowledge: one experienced partner may educate another about the procedures and protocols.

26. What is the difference between iterative and incremental development in Agile?

• Iterative Development: Software is produce, supplied to the client, and then developed again based on input in cycles, releases, and sprints. For instance, Release 1 software is create in 5 sprints and deliver to the client. Now that the client needs certain adjustments, the development team is planning a second release that can be finish in a few sprints, and so on.
• Incremental Development: Software is create in little chunks or increments. Each increment delivers a percentage of the whole demand.

27. What exactly is a test stub in (CTFL-AT)?

A test stub is a short piece of code that mimics and may replace a certain component in the system. Its output is identical to that of the component it replaces.

28. What is an Agile Taskboard?

A taskboard is a dashboard that displays the status of a project.

It includes:

• It contains genuine business necessity.
• To Do: Tasks that can be complete.
• In Progress: Tasks that are currently being work on.
• To Verify: Tasks that are awaiting verification or testing.
• Done: Tasks have been complete.

29. What precisely is Test Driven Development (TDD) in (CTFL-AT)?

It is a test-first development strategy in which we add a test before writing the entire production code. Following that, we run the test and, based on the results, rework the code to meet the test requirement.

30. What exactly is the Application Binary Interface (ABI) in (CTFL-AT)?

Application Binary Interface (ABI) is describe as an interface for compile application programs or the low-level interface between an application and the operating system.