Nihilent Automation Test Engineer Interview Questions and Answers for Experienced

Simple 2 leetcode easy questions, along with MCQs

Q1. Asked about implementation of linked lists,and questions about project
Ans. Implement the linked list with java
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Q2. Swap 2 variables without using a third one
Ans. 
To swap 2 variables without using a third one, use arithmetic operations.
• Add the values of both variables and store the result in one of the variables.

• Subtract the value of the second variable from the sum and store the result in the second variable.

• Subtract the value of the first variable from the sum and store the result in the first variable.
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Q3. Use the XOR operator
Ans. 
XOR operator is a logical operator that returns true if and only if both operands are different.
• XOR is represented by the symbol ^

• It can be used to toggle a bit (e.g. x ^= 1)

• It can be used to check if two values are different (e.g. x ^ y)

• It can be used to encrypt and decrypt data

• It can be used to find the odd occurring element in an array
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Q1. Core concepts and working pattern
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Q2. Functional questions
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Q1. Regarding cloud
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Q2. Oracle core dba
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Q1. Past experience
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Q1. Basic hr question
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