Infinite Computer Solutions Softwaretest Engineer Interview Questions, Process, and Tips

Simple DSA questions based on arrays and linkedlist

Q1. Remove duplicates from the string.
Ans. 
Use a set to remove duplicates from a string array.
• Create a set to store unique strings.

• Iterate through the array and add each string to the set.

• Convert the set back to an array to get the unique strings.
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Q2. Write a code for binary search
Ans. 
Binary search code implementation in Python
• Define a function that takes a sorted array and a target value as input

• Initialize variables for low and high indices

• Use a while loop to continue searching until low is less than or equal to high

• Calculate mid index and compare value at mid with target

• Update low or high based on comparison result
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Q1. Why you want to join Epam?
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Q2. What are your strengths and weakness?
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Q1. Java memory model in java
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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
Ans. 
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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This round if the count is more they will have it or less means they will have one to one technical round

Q1. It will be like technical round
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Q1. For document verifications
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Try to solve leetcode questions as much as possible