Think41 Interview Questions and Answers

1 Coding Questions with 15MCQ's related Java Script (Hacker Rank)

Q1. Questions Core Javascript Topics
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Q2. A Design Question on Image upload service.
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Q1. Give a url which re-directs to n websites till it gives 200. Print all the url's.
Ans. 
Use a loop to follow redirects until reaching a 200 status code and print all URLs.
• Start with the initial URL and make a request to it.

• Check the status code of the response, if it's 200 then print the URL.

• If the status code is a redirect (300-399), follow the redirect URL and repeat the process.

• Continue this process until a 200 status code is received.
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Q2. Core Javascript and Database related questions.
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Q1. This round was taken by CTO, Interview was around generic discussion on project and one puzzle question
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Q1. What is verification and validation what is a test case what are teh types of exploratory tesitng done waht are the
Ans. 
Verification and validation are two important processes in software testing. Test cases are specific conditions or scenarios to test the functionality of a system. Exploratory testing involves simultaneous learning, test design, and execution.
• Verification ensures that the software meets the specifications and requirements, while validation ensures that the software meets the customer's needs.

• A test case is a set of con...read more
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Q2. Some behavorial questions like : what you will do if the test is not completed but test cycle about to end
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Q3. How you ensure tester report goood quality defect
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Ensuring tester reports good quality defects by implementing thorough testing processes and clear communication.
• Implementing comprehensive test cases to cover all possible scenarios

• Utilizing automation tools to increase efficiency and accuracy

• Regularly reviewing and verifying reported defects

• Providing clear and detailed descriptions of defects found

• Communicating effectively with developers to ensure understanding and r
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Q4. Waht are teh techniques you use while developing testcases
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Q5. What is negetive testing
Ans. 
Negative testing is a type of testing where the system is tested with invalid inputs to ensure it handles errors properly.
• Testing the system with incorrect data or unexpected inputs

• Checking how the system responds to invalid user actions

• Verifying error messages and handling

• Ensuring the system does not crash or behave unexpectedly
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Q6. What are the types of performance testing you have done
Ans. 
I have experience in conducting load testing, stress testing, and scalability testing.
• Load testing to assess the system's ability to handle a specific load

• Stress testing to evaluate the system's behavior under extreme conditions

• Scalability testing to determine the system's ability to scale up or down based on demand
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Q7. What is testng framework
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TestNG is a testing framework for Java that supports various types of testing like unit, functional, end-to-end, etc.
• TestNG is an open-source testing framework for Java

• It supports different types of testing such as unit, functional, end-to-end, etc.

• TestNG provides features like annotations, grouping, parameterization, and reporting

• It allows parallel execution of test cases and easy configuration through XML files
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Q8. What is the command to invoke browser using selenium
Ans. 
The command to invoke a browser using Selenium is driver.get("url");
• Use the WebDriver object to open a browser window

• Use the get() method to navigate to a specific URL

• Example: WebDriver driver = new ChromeDriver(); driver.get("https://www.google.com");
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Q1. Started with basic QA conceptual questions
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Q2. How do you target an element on website for automation
Ans. 
To target an element on a website for automation, use unique identifiers like IDs, classes, XPath, or CSS selectors.
• Use IDs for unique identification

• Use classes for grouping similar elements

• Use XPath for complex element targeting

• Use CSS selectors for styling-based targeting
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Q3. How do you target the dynamic element
Ans. 
Targeting the dynamic element involves identifying and testing components of the software that are subject to change.
• Identify areas of the software that are likely to change frequently

• Use automation tools to target and test dynamic elements

• Implement robust test strategies to handle dynamic changes

• Regularly update test cases to accommodate dynamic elements

• Utilize data-driven testing to handle variations in dynamic eleme
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Q4. Is it possible to automate teh flash item
Ans. 
Yes, it is possible to automate flash items using automation tools and scripts.
• Automation tools like Selenium can be used to automate flash items on web applications.

• Flash automation can be achieved by interacting with the flash object using JavaScript.

• Automated testing frameworks like TestComplete also support automation of flash elements.
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Q5. What is difference between absolute and relative xpath
Ans. 
Absolute xpath starts from the root element while relative xpath starts from any element in the DOM.
• Absolute xpath starts with a single forward slash (/) and always starts from the root element of the page.

• Relative xpath does not start with a forward slash and can start from any element in the DOM.

• Absolute xpath is more brittle and prone to breaking if the structure of the page changes.

• Relative xpath is more flexible a...read more
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Q6. What do you test in the api
Ans. 
In API testing, we test the functionality, performance, security, and reliability of the API.
• Functionality testing to ensure the API works as expected

• Performance testing to check the response time and throughput

• Security testing to identify vulnerabilities and ensure data protection

• Reliability testing to verify the API's stability under different conditions
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Q7. What is payload and how it is different from request body in api testing
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Payload is the data transmitted in an API request, while request body is a part of the payload containing the actual data being sent.
• Payload includes all data sent in an API request, such as headers, parameters, and request body

• Request body specifically refers to the part of the payload that contains the actual data being sent

• In API testing, it is important to validate both the payload and request body for accuracy
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Q8. Give the a test case for intergration scenario of api testing and also let us the main status codes which we get in responses
Ans. 
Test case for integration scenario of API testing with main status codes in responses
• Test case: Verify that the API response includes the expected data fields and values after integrating with another API

• Main status codes: 200 (OK), 201 (Created), 400 (Bad Request), 401 (Unauthorized), 404 (Not Found), 500 (Internal Server Error)
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Q9. Write a java program to reverse a string
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Java program to reverse a string
• Create a char array from the input string

• Use two pointers to swap characters from start and end of the array

• Continue swapping until the pointers meet in the middle
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Q10. Write a java program to sagragate the values form given array = {qsdaf12321!$@#(@#@}
Ans. 
Java program to segregate values from given array of strings
• Iterate through each string in the array

• Check each character in the string and segregate based on type (alphabet, digit, special character)

• Store segregated values in separate arrays or data structures
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Q1. How does the captcha works
Ans. 
CAPTCHA works by presenting challenges that are easy for humans to solve but difficult for bots.
• CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart.

• It typically involves distorted text, images, or puzzles that users must solve to prove they are human.

• CAPTCHA helps prevent automated bots from accessing websites or creating accounts.

• Examples of CAPTCHA include reCAPTCHA, image re
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Q2. How the search engine works explain in details
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A search engine works by crawling web pages, indexing content, and ranking results based on relevance.
• Crawling: Search engine bots visit web pages and follow links to discover content.

• Indexing: The search engine stores information about web pages in a database for quick retrieval.

• Ranking: Algorithms analyze the indexed content to determine the relevance of each page to a user's query.

• Results: The search engine displays...read more
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Q3. Explain the mobile app architecture at highlevel
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Mobile app architecture refers to the structure and design of the app, including components like UI, data storage, networking, and security.
• Mobile app architecture typically consists of presentation layer (UI), business logic layer, and data layer.

• UI layer handles user interaction and presentation of data, often using frameworks like React Native or Flutter.

• Business logic layer contains the core functionality of the ap...read more
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Q4. Since u have worked on OTT domain, what explain how the renevue is generated from OTT apps
Ans. 
Revenue from OTT apps is generated through various sources such as subscription fees, advertising, in-app purchases, and partnerships.
• Subscription fees: Users pay a recurring fee to access premium content or features.

• Advertising: OTT apps display ads to generate revenue from advertisers.

• In-app purchases: Users can buy virtual goods or upgrades within the app.

• Partnerships: OTT apps may partner with other companies for c
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Q1. Short question about tableau calculated fields
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Q2. Qts about SQL basics
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Q3. Basic python qts
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Was asked to send 5 insights from Newyorker Hotel Sample data

Q1. Salary expections
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Q2. Ready to relocate
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Q3. Notice period from old company
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They asked logical reasoning and some machin learning mcqs

Q1. Tell me something about your project
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Q2. What is convolution neural network algorithm?
Ans. 
Convolutional neural network (CNN) is a deep learning algorithm commonly used for image recognition and classification.
• CNN is designed to automatically and adaptively learn spatial hierarchies of features from input data.

• It uses convolutional layers to apply filters to input data, extracting features at different spatial locations.

• Pooling layers are used to reduce the spatial dimensions of the input data while retainin...read more
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Q3. How numpy works in the background?
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NumPy is a powerful library for numerical computing in Python, providing support for large, multi-dimensional arrays and matrices.
• NumPy uses C and Fortran libraries in the background for numerical computations, making it faster than pure Python.

• It provides a powerful N-dimensional array object and functions for performing various mathematical operations on arrays.

• NumPy arrays are stored in contiguous blocks of memory, ...read more
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