QBurst Technologies Interview Questions, Process, and Tips

Q1. Different variables in postman tool?
Ans. 
Postman tool has various variables like environment, global, collection, local, etc.
• Environment variables: Used to store values that can be used across requests in a specific environment

• Global variables: Used to store values that can be used across requests in all environments

• Collection variables: Used to store values that can be used across requests in a specific collection

• Local variables: Used to store values that ca...read more
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Q2. Status codes and their meaning ?
Ans. 
Status codes are numerical codes that indicate the status of a HTTP request/response.
• Status codes are grouped into 5 categories: informational, success, redirection, client error, and server error.

• Informational codes (1xx) indicate that the request was received and understood.

• Success codes (2xx) indicate that the request was successfully received, understood, and accepted.

• Redirection codes (3xx) indicate that further a...read more
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Q3. Abstract class vs Interface
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Abstract class is a class that cannot be instantiated while Interface is a contract that a class can implement.
• Abstract class can have both abstract and non-abstract methods while Interface can only have abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class can have constructors while Interface cannot.

• Abstract class can have instance variables while Inter...read more
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Q4. What is network latency testing?
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Network latency testing is the process of measuring the delay in data transmission over a network.
• It involves sending data packets from one point to another and measuring the time taken for the response to be received.

• Latency can be affected by factors such as network congestion, distance, and hardware limitations.

• Tools such as ping and traceroute can be used to perform network latency testing.

• The results of network la...read more
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Q5. What is performance testing ? Do you know Jmeter ?
Ans. 
Performance testing is the process of evaluating the speed, responsiveness, stability, and scalability of a software application.
• It involves simulating real-world scenarios to measure the application's performance under different loads.

• JMeter is a popular open-source tool used for performance testing.

• It can be used to test web applications, APIs, and databases.

• JMeter allows testers to create and execute test plans, gen...read more
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Q6. How you perform mobile testing ?
Ans. 
Mobile testing is performed by creating test cases, selecting devices, and using automation tools.
• Create test cases based on requirements and user scenarios

• Select devices based on market share and user demographics

• Use automation tools like Appium or Selenium for functional and regression testing

• Perform manual testing for usability, accessibility, and compatibility

• Test for network connectivity, battery usage, and perfor...read more
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Q7. What is UAT testing and how you do this ?
Ans. 
UAT testing is User Acceptance Testing, where end-users test the software to ensure it meets their requirements.
• UAT testing is the final phase of testing before the software is released to the end-users.

• It is performed by end-users or a representative group of end-users.

• The goal of UAT testing is to ensure that the software meets the business requirements and is fit for purpose.

• UAT testing can be performed manually or ...read more
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Q8. Drop vs Delete vs Truncate
Ans. 
Difference between Drop, Delete and Truncate commands in SQL
• DROP command deletes the entire table along with its structure

• DELETE command deletes specific rows from the table

• TRUNCATE command deletes all the rows from the table but keeps the structure intact

• DROP and TRUNCATE cannot be rolled back, but DELETE can be rolled back
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Q9. Asked one SQL complex query
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Q10. How you test mobile application ?
Ans. 
I test mobile applications by performing functional, usability, performance, and security testing.
• I start by identifying the requirements and creating test cases.

• I perform functional testing to ensure the app meets the requirements.

• I test the usability of the app by checking the user interface and user experience.

• I perform performance testing to check the app's speed, stability, and scalability.

• I test the security of t...read more
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Q11. What is xpath can you find webelement by using it ?
Ans. 
XPath is a language used to locate elements in an XML document. Yes, we can find web elements using XPath.
• XPath is used to navigate through elements and attributes in an XML document

• It can also be used to locate elements in HTML documents

• XPath expressions can be used with Selenium WebDriver to locate web elements

• Example: driver.findElement(By.xpath("//input[@id='username']"));
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Q12. How you perform cross browser testing in your company ?
Ans. 
We use a combination of manual and automated testing to perform cross browser testing.
• We identify the most commonly used browsers by our users and test on those first.

• We use automated testing tools like Selenium to test on multiple browsers simultaneously.

• We also perform manual testing on each browser to ensure compatibility.

• We document any issues found and prioritize them based on severity.

• We regularly update our test...read more
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Q13. Which defect tracking tools you used? Tell me different parameters of defect reporting?
Ans. 
I have used JIRA and Bugzilla for defect tracking. Parameters include severity, priority, steps to reproduce, and expected vs actual results.
• Defect tracking tools used: JIRA and Bugzilla

• Parameters of defect reporting: severity, priority, steps to reproduce, expected vs actual results

• Severity: impact of the defect on the system

• Priority: importance of fixing the defect

• Steps to reproduce: detailed instructions on how to r...read more
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Q14. What is Upgradation testing ?
Ans. 
Upgradation testing is the process of testing an upgraded version of software or hardware to ensure its compatibility and functionality.
• It involves testing the upgraded version of software or hardware

• The purpose is to ensure compatibility and functionality

• It includes testing for data migration, backward compatibility, and performance

• Examples include upgrading an operating system, upgrading a database management system,
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Q15. Challanges you faced during testing and how you overcome it ?
Ans. 
As a tester, I faced challenges in identifying and reproducing defects. I overcame it by improving my communication and collaboration skills with the development team.
• Identifying and reproducing defects was a challenge

• Improved communication and collaboration with the development team

• Used tools like JIRA and Trello to track defects and progress

• Developed a better understanding of the product and its features

• Created detai...read more
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Q16. What is your current sprint duration ?
Ans. 
Our current sprint duration is 2 weeks.
• Our team follows the Agile methodology and we have adopted a 2-week sprint cycle.

• We have found that this duration allows us to deliver high-quality software within a reasonable timeframe.

• During each sprint, we focus on completing a set of user stories and addressing any bugs or issues that arise.

• At the end of each sprint, we conduct a retrospective to identify areas for improvemen
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Q17. Who priorities sprint itams in your company?
Ans. 
The product owner and the development team collectively prioritize sprint items in our company.
• The product owner is responsible for understanding the business requirements and customer needs.

• The development team provides input on the technical feasibility and effort required for each item.

• Collaborative discussions and negotiations take place to determine the priority of sprint items.

• Factors like customer value, busines...read more
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Q18. How you perform API testing in your company?
Ans. 
API testing is performed using a combination of manual and automated testing techniques.
• We use tools like Postman and SoapUI for API testing

• We create test cases based on API documentation and requirements

• We test for functionality, performance, security, and error handling

• We use mock servers to simulate API responses

• We perform both positive and negative testing

• We use automation scripts to perform regression testing

• We co...read more
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Q19. Scenario based question
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Q1. Explain singleton design pattern.
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Q2. Streaming query to get frequently occurring character.
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Q3. SQL query for outer join scenario
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Q1. Questions related to Jwt token
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Q2. Questions related to current project architecture
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3 questions
1. Check the given string is reversed?
input: "worldhello" output: "true"
2. Check the given string is permutation of palindrome?
3. Sort a stack using an empty stack

Q1. Javascript basics
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Q2. Nodejs basics questions
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Q1. How do GO handle concurrency?
Ans. 
GO uses goroutines and channels to handle concurrency efficiently.
• GO uses goroutines to achieve concurrency. Goroutines are lightweight threads managed by the Go runtime.

• Channels are used to communicate between goroutines. They provide a safe way to pass data between concurrent processes.

• GO also has a built-in 'sync' package for synchronization primitives like mutexes and wait groups.

• GO's 'select' statement allows for ...read more
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Q2. What is defer in GO ? If there are multiple defers in a function, what will be order of execution of these?
Ans. 
defer in Go is used to delay the execution of a function until the surrounding function returns.
• Defer is used to ensure that a function call is performed at the end of the surrounding function, regardless of where the defer statement is located.

• If there are multiple defers in a function, they will be executed in Last In, First Out (LIFO) order.

• Example: func exampleFunc() { defer fmt.Println('First defer'); defer fmt.Pr...read more
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