600+ Quality Analyst Interview Questions and Answers

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

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

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

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]

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

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

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

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

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

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

Molarity is the concentration of a solution in terms of the number of moles of solute per liter of solution, while molality is the concentration of a solution in terms of the number of moles of solute per kilogram of solvent.

• Molarity is denoted by M, while molality is denoted by m.

• Molarity is affected by temperature changes, while molality is not.

• Molarity is used in chemical reactions, while molality is used in colligative properties.

• Molarity is dependent on the volume of the...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

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

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

Difference between usecase and testcase, types of functional testing, software testing life cycle, SDLC, and bug life cycle.

• Use case is a description of how a user will interact with the system, while test case is a set of steps to verify if the system meets the requirements.

• Functional testing includes unit testing, integration testing, system testing, and acceptance testing.

• Software testing life cycle includes planning, design, execution, and closure.

• SDLC is a process of dev...read more

In process quality control is a system of checks and inspections during the manufacturing process to ensure product quality.

• In process quality control involves monitoring and testing products at various stages of production.

• It helps identify and correct any issues before the final product is completed.

• Examples include checking the weight and dimensions of a product, testing for defects, and ensuring proper labeling.

• It is an important part of maintaining consistent quality and...read more

I'm sorry, but I'm not sure what you mean by 'tolls' in the context of Quality. Could you please clarify?

• I'm not familiar with the term 'tolls' in the context of Quality. Could you please provide more information or context?

• I'm not sure what you're asking. Could you please rephrase the question or provide more information?

• I'm sorry, but I don't have enough information to answer your question. Could you please provide more context or clarify what you mean by 'tolls'?

Quality of durability, compatibility, and performance are important in a backhoe loader spare part.

• Durability ensures the part lasts long and can withstand wear and tear.

• Compatibility ensures the part fits perfectly with the machine.

• Performance ensures the part functions efficiently and effectively.

• Examples include hydraulic cylinders, engine parts, and transmission components.

EVs stand for electric vehicles, which are vehicles powered by electricity instead of traditional fuel sources.

• EVs are becoming increasingly popular due to their environmental benefits and lower operating costs.

• They can be powered by batteries, fuel cells, or a combination of both.

• Examples of EVs include electric cars, electric buses, and electric bicycles.

Static binding is resolved at compile time while dynamic binding is resolved at runtime in Java.

• Static binding is also known as early binding.

• Dynamic binding is also known as late binding.

• Example of static binding: method overloading.

• Example of dynamic binding: method overriding.

Wind mills generate electricity by converting the kinetic energy of wind into mechanical power.

• Wind turns the blades of the wind mill

• Blades are connected to a generator

• Generator converts mechanical power into electricity

• Electricity is then transmitted through power lines

• Wind turbines are commonly used to generate electricity

Joins are used to combine data from two or more tables based on a related column.

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

• Inner join returns only the matching rows from both tables

• Left join returns all rows from the left table and matching rows from the right table

• Right join returns all rows from the right table and matching rows from the left table

• Full outer join returns all rows from both tables, with NULL values for non-matching rows

Loan documents are legal papers that outline the terms and conditions of a loan. Different types of loans include personal loans, mortgages, and student loans.

• Loan documents are legal agreements between a lender and a borrower.

• They outline the terms and conditions of the loan, including the loan amount, interest rate, repayment schedule, and any collateral or guarantees required.

• Different types of loans include personal loans, mortgages, auto loans, student loans, and busines...read more

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

As a Quality Analyst in a Quality Laboratory, my responsibility is to ensure the accuracy and reliability of test results and maintain the quality standards of the laboratory.

• Performing various tests and analyses on samples to determine their quality and composition

• Calibrating and maintaining laboratory equipment to ensure accurate results

• Following standard operating procedures and protocols to ensure consistency and reliability of test results

• Documenting and analyzing test d...read more

AI is the simulation of human intelligence in machines that can learn and perform tasks without explicit instructions.

• AI enables machines to learn from data and improve their performance over time

• Machine learning is a subset of AI that involves training algorithms to make predictions or decisions based on data

• AI and machine learning are used in various industries such as healthcare, finance, and transportation

• Examples of AI applications include virtual assistants, image recog...read more

Verification ensures that the product is built according to the requirements, while validation ensures that the product meets the customer's needs.

• Verification checks if the product meets the specified requirements and standards.

• Validation checks if the product meets the customer's needs and expectations.

• Verification is done during the development phase.

• Validation is done after the development phase.

• Verification is a process-oriented activity.

• Validation is a product-oriented ...read more

MTM Realised and Unrealised are methods of calculating profit or loss on options. Moneyness is determined by the strike price and current market price.

• MTM Realised calculates profit or loss on options that have been closed or exercised

• MTM Unrealised calculates profit or loss on options that are still open

• Moneyness is determined by comparing the strike price to the current market price

• In-the-money options have a strike price below the current market price

• Out-of-the-money optio...read more

HPLC stands for High Performance Liquid Chromatography. It is a principle used in analytical chemistry to separate, identify, and quantify components in a mixture.

• HPLC uses a liquid mobile phase and a solid stationary phase to separate components based on their interactions with the stationary phase.

• The principle is based on the differential partitioning of components between the mobile and stationary phases.

• Components with stronger interactions with the stationary phase will...read more

Finished product quality control system ensures that the final product meets the desired quality standards.

• It involves testing and inspection of the final product before it is released to the market.

• It includes checking for defects, ensuring compliance with regulations and standards, and verifying product specifications.

• Examples of quality control tests include visual inspection, functional testing, and chemical analysis.

• The system also involves documentation and record-keepi...read more

I would focus on implementing automation testing and improving communication with development team.

• Implement automation testing to increase efficiency and reduce manual errors

• Improve communication with development team to ensure timely bug fixes

• Create a comprehensive test plan to cover all possible scenarios

• Regularly review and update testing processes to stay current with industry standards

System suitability parameters for HPLC ensure the proper functioning of the system and accuracy of results.

• Retention time of the analyte

• Resolution between peaks

• Theoretical plates

• Peak symmetry factor

• Limit of detection and quantification

• Accuracy and precision of the system

• Mobile phase composition and pH

• Column temperature and pressure

• Flow rate and injection volume

The standard operating procedure of FT-IR analysis involves sample preparation, instrument calibration, data acquisition, and interpretation.

• Sample preparation involves obtaining a representative sample and preparing it for analysis.

• Instrument calibration ensures accurate measurements by calibrating the instrument using known reference materials.

• Data acquisition involves placing the sample in the FT-IR instrument and collecting the infrared spectrum.

• Interpretation of the obta...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

AI is used in various aspects of daily life, from personal assistants to social media algorithms.

• AI is used in virtual assistants like Siri, Alexa, and Google Assistant

• Social media platforms use AI to personalize content and ads

• AI is used in navigation apps like Google Maps and Waze

• AI is used in online shopping recommendations and fraud detection

• AI is used in smart home devices like thermostats and security systems

Airport Management System schema and ER diagram design

• Entities: Airport, Flight, Passenger, Employee, Schedule

• Attributes: Airport (code, name, location), Flight (number, destination, departure time), Passenger (name, age, contact info), Employee (ID, name, role), Schedule (flight number, date, time)

• Relationships: Airport has many Flights, Flight has many Passengers, Employee works at Airport, Flight has Schedule

PUT is used to update or replace an existing resource, while POST is used to create a new resource.

• PUT is idempotent, meaning multiple identical requests will have the same effect as a single request

• POST is not idempotent, meaning multiple identical requests may have different effects

• PUT is used to update an existing resource at a specific URI

• POST is used to create a new resource under a specific URI

• Example: PUT /users/123 updates user with ID 123, POST /users creates a new u...read more

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

• Identify the functional dependencies in the table

• Eliminate partial dependencies by breaking the table into multiple tables

• Eliminate transitive dependencies by further breaking down the tables

• Ensure each table has a primary key and all non-key attributes are fully functionally dependent on the primary key