Tundra Technical Solutions Senior QA Engineer Interview Questions and Answers for Freshers

Q1. Difference between functions and stored procedure in SQL.
Ans. 
Functions return a single value while stored procedures can perform multiple operations and return multiple values.
• Functions return a single value while stored procedures can return multiple values.

• Functions are used for computations and return values, while stored procedures are used for executing a series of statements.

• Functions can be called from within SQL statements, while stored procedures are called using the EX...read more
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Q2. Difference between abstract class and Interface in C#
Ans. 
Abstract class can have implementation details, while interface only contains method signatures.
• Abstract class can have constructors, fields, and methods with implementation details, while interface can only have method signatures.

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

• Abstract classes are used when some common functionality needs to be shared among multiple classes, whi...read more
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Q1. Self Introduction
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Q2. Operations round
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Q3. About job profile
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Round duration - 60 minutes
Round difficulty - Easy

This was a written test with 2 coding problems.

Q1. 
Combination Sum Problem Statement
Given an array of distinct positive integers ARR and a non-negative integer 'B', find all unique combinations in the array where the sum is equal to 'B'. Numbers can be c...read more
Ans. 
The task is to find all unique combinations in an array where the sum is equal to a given target sum, with elements in non-decreasing order.
• Use backtracking to generate all possible combinations.

• Sort the array to ensure elements are in non-decreasing order.

• Keep track of the current combination and sum while exploring the array.

• Recursively explore all possible combinations.

• Return the valid combinations that sum up to th
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Q2. 
Next Greater Number Problem Statement
Given a string S which represents a number, determine the smallest number strictly greater than the original number composed of the same digits. Each digit's frequenc...read more
Ans. 
The task is to find the smallest number greater than the given number with the same set of digits.
• Iterate from right to left to find the first digit that can be swapped with a larger digit to make the number greater.

• Swap this digit with the smallest digit to its right that is larger than it.

• Sort all digits to the right of the swapped digit in ascending order to get the smallest number.

• If no such number exists, return -
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Q1. Maximum questions based in hybris
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Q2. Promotion and its types
Ans. 
Promotion refers to the advancement of an employee to a higher position or rank within an organization.
• Promotion can be vertical, where an employee is promoted to a higher position within the same department or team.

• Promotion can also be horizontal, where an employee is promoted to a different department or team with similar or different responsibilities.

• Promotion can be temporary or permanent, depending on the organiz...read more
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Q1. Why you want to join us
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