ThoughtWorks Softwaretest Engineer Interview Questions and Answers

Q1. Java memory model in java
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Q1. Java program for prime no
Ans. 
Java program to check if a number is prime or not
• Create a function to check if a number is prime or not

• Iterate from 2 to n/2 and check if n is divisible by any number

• If n is divisible by any number, it is not prime

• If n is not divisible by any number, it is prime
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Q2. Dynamic web table element program
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A dynamic web table element program involves identifying and interacting with elements in a table that change dynamically.
• Identify the table element using unique identifiers like class or id

• Use Selenium WebDriver to locate and interact with the table element

• Handle dynamic changes in the table by using dynamic XPath or CSS selectors

• Iterate through rows and columns to extract data or perform actions
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Q1. SQL, RDBMS, ETL transformation related questions
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Q1. Explain your typical Software Testing Life Cycle.
Ans. 
Software Testing Life Cycle involves planning, designing, executing, and reporting on tests to ensure quality software.
• 1. Planning phase involves defining test objectives, scope, and resources.

• 2. Design phase includes creating test cases, test data, and test environment setup.

• 3. Execution phase is where tests are run, defects are logged, and retesting is done.

• 4. Reporting phase involves documenting test results, defect...read more
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Q1. Why do you want to change your job?
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Q1. Reverse a string with spaces present in same position Ex: i am indian o/p:n ai dnimai
Ans. 
To reverse a string with spaces present in the same position, we can split the string by spaces, reverse each word, and then join them back together.
• Split the string by spaces to get individual words

• Reverse each word

• Join the reversed words back together with spaces in between
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Q2. Difference between put and post in sql
Ans. 
PUT is used to update an existing resource in SQL, 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 specific resources identified by the request URI.

• POST is used to create new resources under the request URI.

• PUT is ty...read more
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Q3. What is bad request in api testing
Ans. 
A bad request in API testing is when the server cannot process the request due to incorrect syntax or missing parameters.
• Bad request status code is 400

• Common causes include missing or incorrect parameters, invalid data format, or unauthorized access

• Examples: missing required parameters, incorrect data type in request body
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Q1. Permutations of string of length n in string of length m
Ans. 
Generate all permutations of a string of length n within a string of length m.
• Use recursion to generate all possible permutations of the string of length n.

• Iterate through the string of length m and insert the permutations at different positions.

• Return an array of strings containing all permutations of the string of length n within the string of length m.
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Q2. Count ocurrence of characters in digit
Ans. 
Count occurrences of characters in a digit
• Iterate through each digit in the input array

• For each digit, convert it to a string and iterate through each character

• Use a hashmap to keep track of the count of each character
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Q3. Find second highest salary in sql
Ans. 
Use SQL query with ORDER BY and LIMIT to find the second highest salary.
• Use ORDER BY clause to sort the salaries in descending order

• Use LIMIT 1,1 to get the second row after skipping the first row

• Consider handling cases where there might be ties for the highest salary
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Q4. Http status in API
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HTTP status codes are used to indicate the result of a HTTP request made to an API.
• HTTP status codes range from 1xx to 5xx, with each range representing a different type of response.

• Some common HTTP status codes include 200 (OK), 404 (Not Found), and 500 (Internal Server Error).

• Status codes starting with 2 indicate success, 4 indicate client errors, and 5 indicate server errors.
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Q1. Explain about your project
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Q2. How do you run your automation Regression scripts
Ans. 
I run automation Regression scripts using a test automation framework and scheduling tools.
• I organize regression scripts into test suites based on functionality

• I use a test automation framework like Selenium or Appium to execute the scripts

• I schedule the regression runs using tools like Jenkins or TeamCity

• I analyze the test results and report any failures for further investigation
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Q1. The round comprised of basic multiple choice questions from DBMS, networking, data structure, algorithms and Java/C++ coding.
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This round consisted of flow diagram based aptitude questions. No multiple choices were present.

A simple group discussion on topics related to current affairs.

Q1. An interesting interaction with HR about the company's expectations on hiring you.
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Q1. This was the final round where simple technical questions were asked from topics specified in applicant's resume. Also some basic questions from Networking and data structures.
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