CARS24 QA Engineer Interview Questions and Answers

Basic aptitude questions

Q1. Manual testing related questions
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Q1. Testing related question and writing test cases
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Q1. Basic discussion
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Q1. What is Smog Testing
Ans. 
Smog testing is a process to measure the amount of pollutants emitted by vehicles to ensure they meet environmental standards.
• Smog testing is also known as emissions testing or vehicle inspection.

• It is typically required by law to ensure vehicles are not emitting excessive pollutants into the air.

• The testing process usually involves measuring the levels of pollutants such as carbon monoxide, hydrocarbons, and nitrogen ...read more
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Q2. What is SDLC lifecycle
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SDLC lifecycle is the process of planning, creating, testing, and deploying software.
• SDLC stands for Software Development Life Cycle

• It includes phases like planning, analysis, design, implementation, testing, and maintenance

• Each phase has specific goals and deliverables

• Examples of SDLC models include Waterfall, Agile, and DevOps
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Q1. Given was a case study of lift, need to make test cases regarding that.
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Q1. What is your marital status, family and current job.
Ans. 
Married with two children, currently working as a QA Engineer.
• Married with two children

• Currently working as a QA Engineer
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Q1. Write an SQL query to find the 2nd largest salary
Ans. 
SQL query to find the 2nd largest salary
• Use the ORDER BY clause to sort salaries in descending order

• Use the LIMIT clause to get the second row
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Q2. Write test cases of Login API
Ans. 
Test cases for Login API
• Verify valid credentials login successfully

• Verify invalid credentials show error message

• Verify login with empty username or password

• Verify login with special characters in username or password

• Verify login with long username or password
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Q3. In Jmeter, what is Rampup period
Ans. 
Rampup period in JMeter is the time taken for all virtual users to start executing the test plan.
• Rampup period is specified in seconds in JMeter test plan settings.

• During the rampup period, JMeter gradually starts all virtual users to avoid overwhelming the server.

• For example, if rampup period is set to 60 seconds and number of threads is 100, JMeter will start 1 thread every 0.6 seconds.
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Q4. Difference between cookie and cache
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Cookies are small pieces of data stored on the client side, while cache is temporary storage of web documents on the server or client side.
• Cookies are used to store user-specific information like login credentials, preferences, etc.

• Cache is used to store frequently accessed web documents to reduce loading times.

• Cookies are sent with every HTTP request, while cache is used to store resources locally to reduce server loa...read more
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Q5. API vs Webservice
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API is a general term for any set of rules that allow different software applications to communicate with each other. A web service is a type of API that is accessed over a network.
• API is a set of rules and protocols that allow different software applications to communicate with each other.

• Web service is a type of API that is accessed over a network, typically using HTTP.

• API can be used for various purposes like access...read more
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Q6. Write a program to find a prime number
Ans. 
Program to find a prime number
• Iterate through numbers starting from 2 up to the given number

• Check if the number is divisible by any number other than 1 and itself

• If not divisible, then it is a prime number
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Q7. Write a program to find the factorial
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Program to find the factorial of a number
• Use a loop to multiply numbers from 1 to the given number

• Handle edge cases like 0 and negative numbers

• Example: For input 5, factorial is 5*4*3*2*1 = 120
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Q1. Questions related to SQL, Manual concepts, test cases, Automation
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Q1. SQL queries, Real-time scenarios, Manual and automation concepts, Java concepts
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Q1. About company and salary
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Binary Search questions were asked

Peak in a mountain array question were asked

Q1. Salary Questions were asked
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Q2. Salaryyy questions were asked
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Q1. Tell me about yourself
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Q2. Where will you see yourself in 3year
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Q3. What id your goal
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Q4. About relocation
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Q5. Your project and future goals
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Q1. Sdlc, tc creation, yourself,
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Q2. Stlc, bug life cycle, apti
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