50+ Quality Assurance Analyst Interview Questions and Answers

Stress, strain, automobile, IC engine, SI engine, four-stroke engine, and two-stroke engine are all related to mechanical engineering.

• Stress is the force applied per unit area, while strain is the deformation caused by stress.

• An automobile is a vehicle that is designed to transport people or goods on roads.

• An IC engine is an internal combustion engine that converts chemical energy into mechanical energy.

• An SI engine is a type of IC engine that uses a spark plug to ignite the ...read more

Test cases for money transfer from one account to another account

• Verify that the correct amount is deducted from the sender's account

• Verify that the correct amount is credited to the receiver's account

• Verify that the transaction is recorded in the transaction history of both accounts

• Verify that the transaction is not processed if the sender's account balance is insufficient

• Verify that the transaction is not processed if the receiver's account is inactive or closed

OOPs is a programming paradigm based on the concept of objects. I have used OOPs in multiple programs.

• Encapsulation: Used private and public access modifiers to restrict access to data members and methods.

• Inheritance: Created child classes that inherit properties and methods from parent classes.

• Polymorphism: Implemented method overloading and overriding to perform different actions based on the context.

• Abstraction: Used abstract classes and interfaces to define common behavio...read more

A pivot table is a data summarization tool used in Excel to analyze and present data in a more organized manner.

• Select the data range you want to summarize

• Go to the Insert tab and click on the PivotTable button

• Choose the location where you want to place the PivotTable

• Drag and drop the fields you want to summarize into the Rows and Columns areas

• Add any necessary calculations or filters to the PivotTable

In such a scenario, I would first analyze the defect thoroughly and try to reproduce it in a controlled environment.

• Investigate the defect thoroughly to understand its impact on the system

• Consult with developers to gather more information about the issue

• Attempt to reproduce the defect in a controlled testing environment

• Document all findings and steps taken to troubleshoot the issue

Refundable credits are credits that can result in a refund if they exceed the amount of taxes owed, while nonrefundable credits can only reduce tax liability to zero.

• Refundable credits can result in a refund if they exceed the amount of taxes owed.

• Nonrefundable credits can only reduce tax liability to zero.

• Examples of refundable credits include the Earned Income Tax Credit and the American Opportunity Credit.

• Examples of nonrefundable credits include the Child Tax Credit and t...read more

Title insurance is a type of insurance that protects the policyholder from financial loss due to defects in the title of a property.

• Title insurance is typically purchased during the closing process of a real estate transaction.

• It covers the policyholder for any issues that may arise with the title, such as liens, encumbrances, or other defects.

• Title insurance policies are typically issued for a one-time fee and last for as long as the policyholder or their heirs own the prope...read more

Piston is a component of an engine that moves up and down to generate power. BS6 engine is a type of engine that meets the Bharat Stage 6 emission norms.

• Piston is a cylindrical component that moves up and down inside the cylinder of an engine.

• It is connected to the crankshaft and converts the energy generated by the combustion of fuel into mechanical energy.

• BS6 engine is a type of engine that meets the Bharat Stage 6 emission norms, which are the latest and most stringent emi...read more

Smoke testing is a preliminary test to check if the software build is stable for further testing, while Sanity testing is a subset of regression testing to check specific functionalities after changes.

• Smoke testing is done to ensure the stability of the build before further testing, while Sanity testing is done to check specific functionalities after changes.

• Smoke testing is a shallow and wide approach, covering all major features, while Sanity testing is a deep and narrow ap...read more

Sanity testing is a subset of regression testing that focuses on testing the core functionalities of an application.

• Sanity testing is performed to ensure that the critical functionalities of an application are working as expected.

• It is a quick and shallow form of testing that is usually performed after a new build or a minor change.

• Sanity testing helps in identifying major issues early in the development cycle.

• Regression testing, on the other hand, is performed to ensure that...read more

The incubation process is a controlled environment to grow and develop organisms. Media presentation refers to the type of nutrients used.

• Incubation process is used to grow and develop organisms in a controlled environment

• Media presentation refers to the type of nutrients used in the incubation process

• Different types of media presentations are used for different types of organisms

• Examples of media presentations include agar plates, broth, and slants

Use Selenium WebDriver to select a value from a drop-down menu in Java.

• Use Select class from Selenium WebDriver to interact with drop-down menus

• Identify the drop-down element using its locator (id, name, class, etc.)

• Create a Select object by passing the drop-down element as a parameter

• Use selectByVisibleText(), selectByValue(), or selectByIndex() methods to choose a value

SQL query for joins

• Use JOIN keyword to combine data from two or more tables based on a related column

• Types of joins: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN

• Syntax: SELECT * FROM table1 JOIN table2 ON table1.column = table2.column

• Example: SELECT * FROM customers JOIN orders ON customers.customer_id = orders.customer_id

Program to reverse a given string.

• Declare a character array of the same length as the given string.

• Copy the characters of the given string into the array in reverse order.

• Print the reversed string by iterating through the array.

Bach processing is a technique used in exploratory testing to design and execute test cases based on the tester's intuition and experience.

• Bach processing is a manual testing technique

• It involves designing and executing test cases based on the tester's intuition and experience

• It is used in exploratory testing to uncover defects that may not be found through scripted testing

• It is named after its creator, Michael Bolton, who named it after the composer Johann Sebastian Bach

Wet section lab equipment refers to instruments used in the wet lab for chemical analysis and testing.

• Common equipment includes pipettes, beakers, flasks, and burettes.

• Used for measuring, mixing, and storing liquids in a laboratory setting.

• Examples of wet section lab equipment are pH meters, centrifuges, and spectrophotometers.

Title search is the process of examining public records to verify a property's legal ownership and find any liens or encumbrances.

• Title search is conducted by a title company or attorney before a property sale or mortgage loan.

• It ensures that the seller has the legal right to sell the property and that there are no outstanding claims or debts on the property.

• Title search involves examining deeds, mortgages, tax records, court judgments, and other public records.

• If any issues ...read more

Empact analysis is a process of identifying the impact of a change on various aspects of a system.

• Empact analysis helps in identifying the potential risks and benefits of a change.

• It involves analyzing the impact of a change on people, processes, technology, and other relevant areas.

• Empact analysis is commonly used in software development and project management.

• For example, before implementing a new software feature, empact analysis can help identify how it will affect user e...read more

Regression testing is the process of testing changes made to a software application to ensure that existing functionality still works.

• It is performed after making changes to the software

• It ensures that existing functionality is not affected by the changes

• It helps to identify any new defects introduced by the changes

• It can be automated to save time and effort

• Examples include testing a new version of an app or website after making updates

The least count of a vernier caliper is the smallest measurement that can be read on the scale.

• The least count is typically 0.02 mm or 0.001 inches on a vernier caliper.

• It is determined by the number of divisions on the main scale and the vernier scale.

• For example, if the main scale has 20 divisions and the vernier scale has 10 divisions, the least count would be 0.02 mm.

QA stands for Quality Assurance, which involves ensuring that products or services meet specified requirements and standards.

• QA involves testing and evaluating products or services to ensure they meet quality standards

• QA helps identify and fix defects or issues in products or services

• QA involves creating and implementing processes and procedures to improve quality

• QA is essential in software development to ensure the final product meets user requirements

Good laboratory practice involves following standardized procedures, maintaining cleanliness, and ensuring accuracy in testing.

• Follow standardized procedures for all tests and experiments

• Maintain cleanliness and organization in the laboratory

• Ensure accuracy in testing by double-checking results and calibrating equipment regularly

Good manufacturing practices (GMP) are guidelines that ensure products are consistently produced and controlled according to quality standards.

• GMP are regulations that cover all aspects of production, from the starting materials, premises, and equipment to the training and personal hygiene of staff.

• They are designed to minimize the risks involved in any pharmaceutical production that cannot be eliminated through testing the final product.

• Examples of GMP include proper documen...read more

TestNG is a testing framework for Java that supports various testing types and provides advanced features.

• TestNG stands for Test Next Generation.

• It supports various testing types such as unit, functional, integration, and end-to-end testing.

• It provides advanced features such as annotations, data-driven testing, parallel testing, and reporting.

• It integrates with build tools such as Maven and Gradle.

• It is widely used in the Java community for testing applications.

• Example: @Test...read more

QA stands for Quality Assurance. Gram staining is a microbiological process. Media type refers to the type of culture medium used in microbiology.

• QA is the process of ensuring that a product or service meets the desired quality standards

• Gram staining is a microbiological process used to differentiate bacterial species

• Media type refers to the type of culture medium used in microbiology, such as agar or broth

• Examples of QA processes include testing, bug tracking, and code revie...read more

Verification ensures the product is built right, while validation ensures the right product is built.

• Verification focuses on process, validation focuses on product

• Verification is done before validation

• Verification involves reviews, inspections, and walkthroughs

• Validation involves testing and user feedback

• Example: Verification - checking if software requirements are met, Validation - testing the software with end users

Quality assurance is the process of ensuring that products or services meet specified requirements and standards.

• Quality assurance involves creating processes and procedures to prevent defects in products or services.

• It focuses on continuous improvement and monitoring to ensure consistent quality.

• Quality assurance often includes testing, inspections, and audits to identify and correct issues.

• Examples of quality assurance activities include software testing, product inspection...read more

Reverse a given String in different ways

• Use built-in functions like reverse() in Python

• Iterate through the string in reverse order and append characters to a new string

• Use recursion to reverse the string

I will handle alerts by prioritizing them based on severity, investigating the root cause, and implementing necessary actions to resolve the issue.

• Prioritize alerts based on severity levels (e.g. critical, high, medium, low)

• Investigate the root cause of the alert to understand the underlying issue

• Collaborate with relevant teams to address and resolve the alert in a timely manner

• Implement necessary actions to prevent similar alerts in the future (e.g. code fixes, process impro...read more

Dropdowns can be handled by identifying the dropdown element, selecting an option, and verifying the selection.

• Identify the dropdown element using its locator (ID, class, etc.)

• Use a method like selectByVisibleText() or selectByValue() to choose an option

• Verify the selected option to ensure it was successfully chosen

Validation process ensures that the software meets the specified requirements and functions correctly.

• Validation process involves testing the software against the requirements to ensure it functions as expected.

• It includes functional testing, usability testing, performance testing, and security testing.

• Validation process also involves user acceptance testing to ensure the software meets the user's needs.

• Validation process is essential to ensure the quality and reliability of ...read more

Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing bugs in software development.

• Bug is identified by QA analyst during testing.

• Bug is reported to development team.

• Development team fixes the bug.

• QA analyst retests the bug to verify if it is fixed.

• If bug is fixed, it is closed. If not, it goes back to development team.

• Examples: Bugzilla, JIRA, Trello

Acids and bases are two types of chemical substances with opposite properties.

• Acids have a pH less than 7, while bases have a pH greater than 7.

• Acids are sour in taste, while bases are bitter in taste.

• Acids react with metals to produce hydrogen gas, while bases react with acids to produce salt and water.

• Examples of acids include vinegar, lemon juice, and battery acid, while examples of bases include soap, bleach, and baking soda.

Oops concepts refer to Object-Oriented Programming principles such as Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.

Black box testing is a software testing technique where the internal workings of the system are not known to the tester.

• Tests are performed based on the system's inputs and outputs

• It focuses on the functionality of the system

• Testers do not have access to the source code or internal structure of the system

• Examples include GUI testing, regression testing, and acceptance testing

Functional testing is a type of software testing that verifies the functionality of a system or application.

• It involves testing the system against the functional requirements specified in the design or business requirements document.

• It ensures that the system or application is working as expected and meets the user's needs.

• It can be performed manually or using automated testing tools.

• Examples include testing the login functionality of a website, testing the calculation of tax...read more

The V model is a software development model that emphasizes the relationship between testing and development phases.

• It is also known as the Verification and Validation model.

• It is a sequential development process that follows a V-shaped path.

• Each phase of the development life cycle has a corresponding testing phase.

• It ensures that testing activities are integrated throughout the software development process.

• The left side of the V represents the planning and design phases, whi...read more

SDLC process involves planning, designing, developing, testing, and deploying software. Testing ensures quality and functionality.

• SDLC (Software Development Life Cycle) process includes planning, designing, developing, testing, and deploying software.

• Testing is a crucial phase in SDLC to ensure the quality and functionality of the software.

• Different types of testing include unit testing, integration testing, system testing, and acceptance testing.

• Testing involves creating tes...read more

Test cases for a pen

• Verify that the pen writes smoothly on paper

• Check if the pen's ink is visible and does not smudge

• Ensure that the pen's cap can be easily removed and replaced

• Test if the pen's clip is sturdy and functional

• Verify that the pen's grip is comfortable to hold

pH is a measure of the acidity or basicity of a solution.

• pH stands for 'potential of hydrogen'.

• It is measured on a scale of 0-14, with 7 being neutral.

• Solutions with a pH less than 7 are acidic, while those with a pH greater than 7 are basic.

• The pH of a solution can be determined using a pH meter or pH paper.

• Examples of pH values: lemon juice (pH 2), milk (pH 6.5), baking soda (pH 9).

Standard Operating Procedure (SOP) is a detailed step-by-step guide on how to perform a specific task or process.

• SOP procedures outline the necessary steps, tools, and resources required to complete a task.

• They ensure consistency, quality, and compliance with regulations.

• SOPs are commonly used in industries such as healthcare, manufacturing, and software development.

• Examples of SOP procedures include how to conduct software testing, how to clean medical equipment, and how to ...read more

Normality refers to the concentration of a solution in terms of the number of equivalents of solute per liter of solution.

• Normality is a measure of concentration used in acid-base reactions.

• It is defined as the number of equivalents of solute per liter of solution.

• For example, a 1N solution of HCl contains 1 mole of H+ ions per liter of solution.

• Normality is different from molarity, which is a measure of concentration based on the number of moles of solute per liter of soluti...read more

The previous process involved manual testing of software applications.

• Manual testing was performed to identify bugs and defects in the software.

• Test cases were created and executed to ensure the functionality and quality of the applications.

• Defects were logged and tracked using a bug tracking system.

• Test results were documented and shared with the development team for fixing.

• Regression testing was conducted to ensure that fixes did not introduce new issues.

• The process relied ...read more

Nitrobenzene is an organic compound with the chemical formula C6H5NO2.

• Nitrobenzene has a benzene ring with a nitro group (NO2) attached to it.

• The chemical structure of nitrobenzene is C6H5NO2.

• It is a pale yellow, oily liquid with a slightly sweet odor.

Test case is a detailed set of conditions and steps to be followed to verify a specific functionality, while test plan is a high-level document outlining the overall testing approach and strategy.

• Test case is specific to a particular test scenario, while test plan is a comprehensive document covering multiple test scenarios.

• Test case includes detailed steps, expected results, and actual results for a specific test scenario.

• Test plan includes objectives, scope, resources, sche...read more

Molarity is a measure of the concentration of a solution in terms of the number of moles of solute per liter of solution.

• Molarity is expressed in units of moles per liter (mol/L or M)

• It is calculated by dividing the number of moles of solute by the volume of the solution in liters

• For example, a solution containing 0.5 moles of solute in 1 liter of solution has a molarity of 0.5 M

IQ, PQ, DQ, OQ are validation protocols used in the pharmaceutical industry to ensure equipment and processes meet regulatory requirements.

• IQ stands for Installation Qualification, which verifies that equipment is installed correctly and according to specifications.

• PQ stands for Performance Qualification, which ensures that equipment consistently performs as intended in a specific environment.

• DQ stands for Design Qualification, which confirms that the design of the equipment ...read more