Perfios Software Solutions Sdet Automation Test Engineer Interview Questions and Answers

Frequency array, java collection, missing number

General Aptitude test was conducted

Q1. String related problem and code the solution. Some Mongodb questions
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Q1. OOPS concept, testing methods and other QA related questions
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Q1. Test Scenarios discussion, Selenium basics and database problems
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Q1. In depth technical discussion of current projects
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Q1. Cultural fitment round and basic personal questions
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Logic based questions

Tough and easy at the same time

Aptitude and coding round, one coding question and others are computer fundamentals

Q1. Return true if Subarray is present whose sum is 0
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Q2. Project, oops, dbms
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Q1. Subarray sun equal to k
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Q2. Project, oops, dbms
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Q1. Did not got slected i answered all still
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It included aptitude...selenium questions...java mcq questions...and a program to write

Q1. Abstraction related questions
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Q2. Interface, JIT, inheritance, java architecture
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Q3. SQL questions...diff between char and varchar.....pk and fk....
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Q1. Introduce yourself
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Q2. Why should I hire you
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Q1. Git workflow and xpath. Reverse a string
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Basic Array Questions

Q1. Basic Array Questions and SQL
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Q1. Basic Behavirival Quuestions
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Q1. Sort the list of a given array of strings
Ans. 
Sort a given array of strings
• Use built-in sorting functions in programming languages

• Implement sorting algorithms like bubble sort, merge sort, etc.

• Consider case sensitivity and special characters
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Q2. Maximum number of repeating characters in a string
Ans. 
The maximum number of repeating characters in a string needs to be determined.
• Iterate through each character in the string and keep track of the count of consecutive repeating characters.

• Update the maximum count whenever a new maximum is found.

• Return the maximum count at the end of the iteration.
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Q3. Type script and java script arrow function loops if else condition
Ans. 
Explaining type script and java script arrow function loops with if else condition.
• TypeScript and JavaScript both support arrow functions for concise syntax.

• Arrow functions can be used in loops to simplify code.

• If-else conditions can be used with arrow functions to add logic.

• Example: const numbers = [1, 2, 3]; numbers.forEach(num => {if(num % 2 === 0) {console.log(num + ' is even');} else {console.log(num + ' is odd');
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Q4. Parallel browser testing, test ng, oops concept
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Q5. Scaled agile framework related questions
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Q6. Selenium and cypress difference ? How to choose best tool
Ans. 
Selenium is widely used for web automation while Cypress is a newer tool with better performance and debugging capabilities.
• Selenium supports multiple programming languages while Cypress only supports JavaScript.

• Cypress has a built-in test runner and debugger while Selenium requires third-party tools.

• Selenium is better for cross-browser testing while Cypress is better for end-to-end testing.

• Choose Selenium for larger a...read more
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Q7. Comparator and comparable difference?
Ans. 
Comparator and Comparable are interfaces used for sorting objects in Java.
• Comparator interface is used to sort objects based on custom criteria.

• Comparable interface is used to sort objects based on their natural order.

• Comparator interface has two methods: compare() and equals().

• Comparable interface has one method: compareTo().
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Q8. Fail-safe and fail-fast iterator?
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