100+ Quality Analyst Interview Questions and Answers for Freshers

To test a messaging app, I would perform functional, usability, performance, and security testing.

• Functional testing to ensure all features work as intended

• Usability testing to ensure the app is user-friendly

• Performance testing to ensure the app can handle high traffic

• Security testing to ensure user data is protected

• Test different scenarios such as sending messages with emojis, attachments, and different file types

• Test the app on different devices and operating systems

• Test th...read more

Troubleshooting of HPLC system involves identifying and resolving issues to ensure accurate and reliable results.

• Check for leaks in the system

• Inspect and clean the column

• Verify the mobile phase composition

• Calibrate and check the detectors

• Troubleshoot software or connectivity issues

• Perform system suitability tests

• Consult instrument manuals or contact technical support if needed

STLC, bug life cycle, defect life cycle, severity, priority, test case, and test scenario are key concepts in software testing.

• STLC (Software Testing Life Cycle) is the process of testing software from planning to deployment.

• Bug life cycle includes stages like New, Assigned, Fixed, Retest, Verified, and Closed.

• Defect life cycle involves stages like Detection, Reporting, Analysis, Reproduction, Fixing, Retesting, and Closure.

• Severity is the impact of a defect on the system, wh...read more

Rectification is the process of correcting errors or mistakes in a system or process.

• Rectification involves identifying and fixing issues to improve quality and efficiency.

• It is a crucial step in quality assurance to ensure products or services meet standards.

• Examples include retesting software code to fix bugs, adjusting manufacturing processes to reduce defects, and revising documentation to correct errors.

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

• Tests the functionality of the system without knowing the internal code

• Focuses on input and output of the system

• Tests for user interface, performance, and security

• Examples include acceptance testing and regression testing

SDLC has 6 phases: planning, analysis, design, implementation, testing, and maintenance.

• Planning: Define project scope, objectives, and requirements.

• Analysis: Gather and analyze user requirements.

• Design: Create a detailed design plan for the software.

• Implementation: Develop and code the software.

• Testing: Test the software for bugs and errors.

• Maintenance: Make updates and improvements to the software as needed.

SQL joins combine rows from two or more tables based on related columns, enabling complex queries and data retrieval.

• INNER JOIN: Returns records with matching values in both tables. Example: SELECT * FROM A INNER JOIN B ON A.id = B.id;

• LEFT JOIN (or LEFT OUTER JOIN): Returns all records from the left table and matched records from the right table. Example: SELECT * FROM A LEFT JOIN B ON A.id = B.id;

• RIGHT JOIN (or RIGHT OUTER JOIN): Returns all records from the right table and ...read more

PCR stands for Polymerase Chain Reaction. It is a technique used to amplify a specific segment of DNA.

• PCR is used to make multiple copies of a specific DNA sequence for analysis.

• It involves cycles of heating and cooling to denature, anneal, and extend DNA strands.

• PCR is commonly used in medical diagnostics, forensics, and research.

• Example: PCR can be used to detect the presence of a specific virus in a patient's sample.

My favorite subject is Mathematics.

• I enjoy solving complex problems and equations.

• I find satisfaction in finding the right answer.

• Mathematics is a universal language that can be applied in various fields such as science, engineering, and finance.

CSAT stands for Customer Satisfaction Score and DSAT stands for Dissatisfaction Score. They are used to measure customer satisfaction levels.

• CSAT is a metric used to measure how satisfied customers are with a product or service.

• DSAT is a metric used to measure how dissatisfied customers are with a product or service.

• CSAT is usually measured through surveys or feedback forms.

• DSAT can help identify areas for improvement in products or services.

UV operation and calibration involves setting up and maintaining the equipment to ensure accurate readings.

• UV equipment must be properly installed and calibrated before use

• Regular maintenance and cleaning is necessary to ensure accurate readings

• Calibration should be performed using a certified reference material

• UV equipment should be regularly checked for accuracy using a calibration curve

• Proper training and documentation is necessary for operation and calibration

Risk analysts assess and identify potential risks that may impact an organization's financial standing or reputation.

• Risk analysts evaluate potential risks and their impact on an organization

• They use statistical analysis and modeling to predict future risks

• They develop strategies to mitigate risks and minimize potential losses

• Examples of risks analyzed include market fluctuations, regulatory changes, and cybersecurity threats

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 catch defects early in the development cycle

• It can be automated to save time and effort

• Examples include testing after bug fixes, new feature additions, and software updates

Feedback to agents should be specific, timely, and constructive.

• Provide specific examples of what the agent did well or could improve on

• Deliver feedback in a timely manner, ideally soon after the interaction

• Use constructive language and focus on actionable steps for improvement

• Offer support and resources to help the agent improve

• Encourage open communication and a growth mindset

Test cases should be written in a structured format to ensure thorough testing.

• Test case should have a unique ID

• Test case should have a clear objective

• Test case should have preconditions and inputs

• Test case should have expected results and post-conditions

• Test case should be repeatable and independent

• Test case should be reviewed and approved before execution

I have a Bachelor's degree in Computer Science and 3 years of experience in quality analysis.

• Bachelor's degree in Computer Science

• 3 years of experience in quality analysis

To calculate 1% NaOH, divide the weight of NaOH by the volume of the solution and multiply by 100.

• Determine the weight of NaOH used

• Measure the volume of the solution

• Divide the weight of NaOH by the volume of the solution

• Multiply the result by 100 to get the concentration in percentage

Relative xpath is a type of xpath that starts from the current node and navigates to the desired element.

• Relative xpath is used to locate elements based on their relationship with other elements in the HTML structure.

• It is written using the '//' symbol and can be used to navigate up or down the HTML tree.

• For example, if we want to locate the 'Submit' button inside a form, we can use the relative xpath: //form//button[@type='submit']

Grapes are harvested by hand or machine, depending on the vineyard's size and terrain.

• Hand harvesting is more common for high-quality wine grapes.

• Machine harvesting is faster and more cost-effective for large vineyards.

• Grapes are typically harvested in the early morning when temperatures are cooler.

• Harvested grapes are sorted and transported to wineries for processing.

• The timing of the harvest is crucial for the quality of the grapes and the resulting wine.

AI stands for Artificial Intelligence, which is the simulation of human intelligence in machines.

• AI involves the development of computer systems that can perform tasks that would typically require human intelligence.

• It encompasses various subfields such as machine learning, natural language processing, and computer vision.

• AI is used in various applications like virtual assistants, autonomous vehicles, and recommendation systems.

• Examples of AI technologies include IBM's Watson...read more

SDLC stands for Software Development Life Cycle.

• It is a process followed by software development teams to design, develop and test high-quality software.

• It consists of several phases such as planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of deliverables and goals that must be achieved before moving on to the next phase.

• It helps in ensuring that the software is developed efficiently, on time, and within budget.

• Examples of SDLC m...read more

UAT (User Acceptance Testing) ensures the software meets user requirements before deployment.

• UAT is the final testing phase before the software goes live.

• It is performed by end-users to validate the functionality and usability.

• Typically conducted in a real-world environment to mimic actual usage.

• Example: A healthcare app is tested by doctors to ensure it meets their workflow needs.

• UAT helps identify any issues that were not caught during earlier testing phases.

Least count is the smallest measurement that can be read on a measuring instrument.

• Least count of a micrometer is 0.01 mm

• Least count of a vernier caliper is 0.02 mm

• Both instruments are used for precise measurements in engineering and manufacturing

• The least count is important for accurate readings and calculations

The Importance of Time Management

• Time management is crucial for personal and professional success

• It helps in prioritizing tasks and meeting deadlines

• Effective time management leads to reduced stress and increased productivity

• Examples include creating a to-do list, setting realistic goals, and avoiding procrastination

Recombinant technology involves combining DNA from different sources to create genetically modified organisms or products.

• Involves combining DNA from different sources

• Used to create genetically modified organisms or products

• Commonly used in biotechnology and genetic engineering

• Examples include genetically modified crops, insulin production in bacteria

The 7 QC tools are essential techniques for quality control, aiding in problem-solving and process improvement in various industries.

• Cause-and-Effect Diagram: Also known as a fishbone diagram, it helps identify root causes of problems. For example, analyzing why a product fails.

• Check Sheet: A structured form for collecting and analyzing data, such as tracking defects in a manufacturing process.

• Control Chart: A statistical tool used to monitor process variation over time, help...read more

Bread and butter refers to essential tasks in QA, while calibration ensures accuracy in measurement tools and processes.

• Bread and Butter: In QA, this term refers to the fundamental tasks that are crucial for maintaining quality, such as testing and documentation.

• Calibration: This is the process of adjusting and verifying the accuracy of measurement instruments, ensuring they produce reliable results.

• Example of Calibration: Regularly calibrating a thermometer used in a lab to ...read more