700+ Quality Analyst Interview Questions and Answers

Learn to manage data in Excel using filters, validation, formatting, formulas, and charts for effective analysis.

• Apply filters to view specific data, e.g., filter tasks by priority.

• Use data validation to restrict entries, e.g., allow only 'Complete' or 'Incomplete' in a status column.

• Implement conditional formatting to highlight overdue tasks in red.

• Use IF logic to create a new column that shows 'On Track' if a task is due in the next week, otherwise 'Delayed'.

• Create a pie ch...read more

In this scenario, it is important to communicate with the development team, prioritize the bug fix, and ensure proper testing before releasing the fix to production.

• Communicate with the development team to understand why the bug was not fixed initially

• Prioritize the bug fix based on its impact on production

• Reproduce the bug in a controlled environment to understand its root cause

• Perform thorough testing to ensure the bug fix does not introduce new issues

• Coordinate with manage...read more

Maintaining balance between operations and quality as a Quality Analyst

• Establish clear quality standards and communicate them to all stakeholders

• Ensure that quality is integrated into all operations and processes

• Regularly review and analyze data to identify areas for improvement

• Collaborate with operations teams to develop solutions that meet both quality and operational goals

• Provide training and support to operations teams to ensure they understand and can meet quality standa...read more

Quality assurance focuses on preventing defects while quality control focuses on identifying and correcting defects.

• Quality assurance is a proactive process that involves planning, designing, and implementing processes to prevent defects from occurring.

• Quality control is a reactive process that involves identifying defects and taking corrective action to eliminate them.

• Quality assurance is focused on the entire process, while quality control is focused on the end product.

• Qual...read more

Dissolution test is performed to determine the rate at which a drug substance dissolves in a specified medium.

• Prepare the dissolution medium according to the specified requirements.

• Calibrate the dissolution apparatus by measuring the rotation speed, temperature, and other parameters.

• Place the drug substance in the dissolution vessel and start the test.

• Collect samples at specified time intervals and analyze the amount of drug dissolved.

• Compare the dissolution profile with the ...read more

To close a feedback, summarize the key points, thank the person for their input, and provide any necessary follow-up actions.

• Summarize the feedback to ensure understanding

• Thank the person for their input and acknowledge their effort

• Provide any necessary follow-up actions or next steps

• Ask if there is anything else they would like to add

• End on a positive note

To make an xpath for the 4th child node out of 5 children nodes with the same tag, use the position() function.

• Use the position() function in the xpath expression

• Add the index of the child node you want to test inside the position() function

• Example: //parentTag/childTag[position()=4]

Equivalence partitioning is a technique used in software testing to divide input data into groups that are expected to exhibit similar behavior.

• Dividing input data into groups that are expected to behave similarly

• Testing only one input from each group

• Examples: age groups, income brackets, product categories

To groom business, we need to analyze data and identify areas of improvement. Team data can be managed through regular meetings and use of project management tools.

• Analyze business data to identify areas of improvement

• Regular meetings with team to discuss progress and address any issues

• Use project management tools to track team data and progress

• Provide training and development opportunities for team members

• Encourage open communication and collaboration within the team

Stability refers to the ability of a product to maintain its quality attributes over time. Stability chambers are used to test this.

• Stability testing is a crucial part of quality control in industries such as pharmaceuticals, food, and cosmetics.

• Stability chambers are controlled environments that simulate real-world conditions such as temperature, humidity, and light exposure.

• Products are placed in stability chambers for a specified period of time and are periodically tested ...read more

Functional testing verifies that each function of the software application operates in conformance with the required specification.

• User Interaction: Tests whether buttons and links perform their intended actions, e.g., clicking 'Submit' should save the data.

• Input Validation: Ensures that forms validate user input correctly, e.g., entering an invalid email should show an error message.

• Business Logic: Confirms that the application processes data correctly, e.g., calculating tot...read more

The front end of a website or application is responsible for the user interface and user experience.

• The front end is built using HTML, CSS, and JavaScript

• It communicates with the back end to retrieve and display data

• Real-time front ends often use technologies like WebSockets or AJAX to update content without refreshing the page

• Responsive design is important for ensuring the front end works well on different devices

Answers to questions related to Quality Analyst role.

• Span is the difference between the highest and lowest price of a security in a given period.

• Exposure is the amount of money invested in a particular security or market.

• Span gets computed by taking the difference between the highest and lowest price of a security in a given period.

• Market order is an order to buy or sell a security at the best available price in the market.

• Possible case for driving market order price could be...read more

The principle of UV-spectrophotometer is based on the absorption of ultraviolet (UV) light by molecules.

• UV-spectrophotometer measures the absorbance of UV light by a sample.

• The absorbance is directly proportional to the concentration of the absorbing species in the sample.

• The principle is used in various applications such as quantitative analysis, purity determination, and kinetics studies.

• UV-spectrophotometer operates in the UV range of electromagnetic spectrum, typically be...read more

UV spectroscopy is a technique that uses ultraviolet light to analyze the chemical composition of substances.

• UV spectroscopy is based on the principle that molecules absorb ultraviolet light at specific wavelengths.

• The Beer-Lambert law relates the concentration of a substance to the amount of light it absorbs.

• UV spectroscopy is commonly used in pharmaceutical, environmental, and forensic analysis.

• It is used to determine the concentration of a substance, identify unknown compo...read more

Calibration of instruments is a crucial process to ensure accuracy and reliability of measurements.

• Calibration involves comparing the measurements of an instrument to a known standard.

• It helps in identifying and correcting any deviations or errors in the instrument's readings.

• Calibration ensures that the instrument is performing within acceptable limits and provides accurate results.

• It is necessary to calibrate instruments regularly to maintain their performance and reliabili...read more

Answering normalisation of a given table in an interview for Quality Analyst.

• Identify the functional dependencies in the table

• Check for any partial dependencies and remove them by creating new tables

• Check for any transitive dependencies and remove them by creating new tables

• Normalize the table to 1st, 2nd or 3rd normal form based on the dependencies

• Ensure that the new tables have a primary key and foreign key relationships with the original table

Black box testing is based on external expectations while white box testing is based on internal workings.

• Black box testing focuses on the functionality of the system without knowledge of its internal workings.

• White box testing involves testing the internal workings of the system, including code and algorithms.

• Black box testing is typically done by end-users while white box testing is done by developers or testers.

• Examples of black box testing include user acceptance testing ...read more

This question is about software testing life cycle, methods, levels, bug and defect life cycle, and test cases.

• Phases in software testing life cycle: planning, preparation, execution, and closure.

• Methods in software testing: black box, white box, grey box, unit, integration, system, acceptance, regression, and more.

• Levels of testing: unit, integration, system, acceptance, and more.

• Bug life cycle: new, assigned, open, fixed, verified, and closed.

• Defect life cycle: detection, r...read more

ISO 9001, 14001, 18001, and 22001 are all international standards for quality management, environmental management, occupational health and safety management, and food safety management, respectively.

• ISO 9001 is focused on quality management systems and ensuring customer satisfaction.

• ISO 14001 is focused on environmental management systems and reducing environmental impact.

• ISO 18001 is focused on occupational health and safety management systems and ensuring a safe workplace....read more

Pareto Analysis is a technique used to identify the most significant factors contributing to a problem.

• Construct a bar chart showing the frequency or impact of each factor

• Arrange the factors in descending order of frequency or impact

• Calculate the cumulative percentage of each factor

• Identify the 'vital few' factors that contribute to the majority of the problem

• Focus on addressing the vital few factors to have the greatest impact on improving quality

The role of a quality auditor in addressing a user consistently making errors and not accepting them.

• Provide additional training or resources to help the user improve their skills

• Offer constructive feedback and guidance on how to avoid errors in the future

• Implement a system for monitoring and tracking errors to identify patterns and areas for improvement

• Encourage open communication and collaboration to address any underlying issues causing the errors

• Consider involving a super...read more

The interview question covers various topics related to database testing and quality analysis.

• Types of joins in database include inner join, left join, right join, and full outer join.

• Adhoc testing involves testing without any predefined test cases.

• Test cases for Red bus ticket booking screen can include verifying the availability of seats, checking the payment gateway, and ensuring the booking confirmation message is displayed.

• API response through PUT method involves updatin...read more

Answering questions on testing field, standard process, extra activities, strengths and weaknesses.

• I chose testing field because I enjoy finding and fixing bugs.

• The standard process of testing includes planning, designing test cases, executing tests, reporting bugs, and retesting.

• Extra activities include learning new testing techniques, attending conferences, and collaborating with other testers.

• My strengths include attention to detail, strong communication skills, and abilit...read more

I would clarify the reason behind the request and discuss any potential impact on the analysis.

• Ask for clarification on the reason for skipping the step

• Discuss any potential impact on the analysis

• Provide alternative solutions if possible

The 7 QC tools are a set of basic tools used for quality control and problem-solving in manufacturing and service industries.

• Check sheet: Used to collect and organize data in a systematic way.

• Histogram: A graphical representation of data distribution.

• Pareto chart: Helps identify the most significant factors contributing to a problem.

• Cause-and-effect diagram (Fishbone diagram): Used to identify and analyze potential causes of a problem.

• Scatter diagram: Shows the relationship b...read more

The type of test for a new feature is determined based on its complexity, impact, and requirements.

• Consider the complexity of the feature - simple features may only require manual testing, while complex features may need automated testing

• Assess the impact of the feature on the overall application - critical features may require thorough regression testing

• Review the requirements and specifications of the feature - testing should align with the expected functionality and user e...read more