75 QA Interview Questions to Land Your Dream Job

QA interview questions! why do they matter? In order to triumph your oral interview and skill analysis, you might be asked many QA-related interview questions and that’s the reason why we have compiled the most probable QA interview question and answers just for you.

How can I prepare for the QA interview

Make sure that you are well aware of the project you have been a part of. Not just the quality aspect of it. From design to release you need to have a clear idea about what went on with the project. To make things easier, make project details that contain all the details in bullet points regarding the project and company you were a part of.
The project sheet must have, Name of the company, project details such as the name of the software, database, client base, time period, your role, team information, SDLC, tools used, and task performed
A personal retrospective about the project, tasks performed, your professional and personal gain, hurdles that came up, and how you tacked it
Perform mock interview by referring to most probable Q and A
Be confident about what you know and be upfront about what you don’t
Ensure interaction by asking your doubts
Do not imitate anyone. Be yourself!

50 good interview questions and answers

1. What is the difference between QA and software testing?

Quality Assurance refers to the activity of monitoring the process of developing software in order to assure customers that the requirements for quality will be met. Through QA, we can identify the inconsistencies and flaws present in the development process.

1. What does Quality mean?

The quality of a product or service is determined by how well they meet the expectations and the requirements set by the customers. A good quality product must be error-free, does not have any lacking areas or any present inconsistencies. Therefore, there are some quality standards that need to be met for a product to be considered to have good quality.

1. Why is checking for quality so important in business?

The following factors are the reasons why quality is very important in business:

Dependency- The success of every business depends on the quality of its products and services.
Business Reputation- If a business provides quality services to its clients and customers, only then will it gain a good reputation in the market.
More Transactions- If customers are satisfied with the quality of services and products that the business provides them, they will keep making transactions with them in the future.
Automatic Advertisement- When the business guarantees and provides quality, the customers remain satisfied, which translates into them referring your business to other people as well

1. What is the difference between Quality Assurance and Quality Control?

QA is the process of creating, documentation, and agreeing on the guidelines that assure quality. This means that at the end of QA, we get the quality standards for the software that need to be met.

QC on the other hand is a process that focuses on identifying defects in the quality of the developed product. This means that the software is tested at various stages of its development cycle against the various requirements set by the customer.

1. What is the meaning of Testware?

Testware entails all the artifacts or materials that are used while performing tests. This includes test cases, test plans, test scripts, etc.

1. What is the difference between release and build?

The build is the software developed for the customers which is handed over to the testing team by the development team.

A release is an installable application that is officially released for the customer after it is completely tested and certified by the testing team.

A build turns into a release after is removed of any prevalent bugs and errors in it.

1. At what point should the QA activities start?

The process of quality assurance must start as soon as the development of software starts. The sooner the QA activities start, the better. This is because QA can help avoid risks that have already been specified in the specification phase.

If QA activities are delayed, they can prove to be very costly, efforts and time-consuming.

1. What is a cause-effect graph?

A graph that represents all possible input domains and the outputs associated with them is called a cause-effect graph. This graph comes into use during the process of test case designing.

1. What is bug leakage and bug release?

When software is handed over to the team of testers knowing that a particular set of errors exist in the release, it is called a bug release. The severity and priority of these errors are known to be very low, as they can be resolved before the final release of the software.

When errors or bugs which went unnoticed by the testing team, are detected by the customers or the end-users after the software’s release, then it is known as a bug leakage.

1. What is the importance of a Bug Triage?

Bug Triage is the process of prioritizing every bug on the basis of its frequency, severity, risks, etc. It helps to evaluate and then assign the solution to these bugs in a very efficient manner.

1. How is Test Plan different from Test Strategy?

A test plan can be considered as a document that defines the objective, scope, approach, and emphasis that will go into the software testing efforts. Test plans can include the features that are to be tested, testing techniques to use, pass and fail criteria, etc.

A test strategy on the other hand can be defined as a set of guidelines that define the test designs in detail and provide instructions on how to conduct the testing process. It includes documentation formats, scope, and objectives, testing processes, test deliverables, etc.

1. What is meant by data-driven testing?

It is a testing methodology where test scripts are created which read test data, such as input and output values, directly from data files. The data sources can be of any type such as CSV files, ODBC files, ADO files, data pools, etc.

1. What are the different phases in the QA testing cycle?

The QA cycle has 4 phases:

Plan- Businesses first need to plan the processes that are related to the goals and objectives and determine what is required to be done to develop a good quality product.
Do- Here the development of the software and its testing is conducted.
Check- An important aspect of QA is to monitor the processes and methodologies that are used to check whether they meet the previously determined objectives or not.
Act- Finding out inconsistencies and flaws in the process and acting accordingly to improve them.

1. What is meant by a test case?

A test case contains conditions and specifications according to which a particular software must be tested for bugs. It includes details of the acceptable inputs, conditions for execution, procedures for testing, ideal outputs, etc.

1. What constitutes a good test case?

A test case can be considered as good if it is capable of finding defects and errors. Therefore, a test case that exhibits the following characteristics can be considered as a good one:

Accuracy- It must exact its purpose
Economic- It must not include unnecessary words or steps
Traceable- It should be traceable to the requirements
Repeatable- The test case must be usable again and again
What are High-level and Low-level test cases?
High-level: The cases which cover all the core functionalities of a product are considered high-level test cases.
Low-level: The cases which are related to the UI of the application are considered low-level test cases.
Which are the most important functions of QA?
The important functions of QA include validation, creation of improvement plans, documentation, and technology transfers.

1. What are the common challenges faced by the testing team when automating the QA process?

The most common automation challenges that are faced in QA testing are:

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Reusability of automation script
Mastering the tools for automation
Adapting the test cases for automation
Automating complex test cases

1. What are the different types of software testing approaches?

There are many types of software testing approaches, among which the commonly used ones are:

Unit Testing
Integration Testing
Systems Testing
Functional testing
Non-Functional Testing
Black and White box testing
Regression Testing
Exploratory testing
Agile Testing
Ad-Hoc Testing
Smoke Testing
Alpha and Beta Testing

1. What are the stages in a Bug Life Cycle?

The bug life cycle includes all the stages through which a bug goes, throughout its lifetime. The different stages in a bug lifecycle ate as follows:
The bug is detected and identified, its state is ‘new’
A tester approves the bug as genuine and its state becomes ‘assigned’
It is checked whether the bug is in the scope or not. If it is not, then the bug is postponed for later
Its state becomes ‘in-progress once a tester starts working on it
When the bug is fixed, its state changes to ‘fixed’
If it passes the final testing process, the state is set as ‘closed’

1. What does Bug Control mean in product development?

It is an approach that aims at developing software products that are free from bugs and errors. In this approach, efforts are made to detect and avoid errors only in the testing phase, and not after that.

1. What are functional and non-functional tests?

Functional tests are those which check the functional aspects of the software to validate their efficiency. Smoke testing, unit testing, integration testing, user acceptance, regression testing, etc. come under functional testing.

Non-functional tests are those which check the non-functional aspects of the software to validate its performance. Performance testing, load testing, stress testing, scalability, volume testing, etc. come under non-functional testing.

1. What is Agile Testing?

Agile testing is a software testing approach where continuous iteration of developing and testing the software takes place throughout the SDLC. In this approach, the requirements are gradually developed during the development lifecycle by the customers and the testers. This means, in agile testing, the coding and the testing processes are conducted simultaneously.

1. When a bug is found in production, how can you make sure that the same bug doesn’t occur again?

Whenever a bug is detected in production, the best practice is to create a test case immediately for it and to include it in the regression suite. We can also create alternate or similar test cases to include them in the suite. This way, we can prevent the occurrence of that same bug again in production.

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