Nvidia Interview Questions, Process, and Tips for Freshers

Round duration - 60 minutes
Round difficulty - Medium

There were 25 mcqs and 1 coding question. OS, aptitude, C and C++ concepts were the main focus. 

Q1. Which feature of the operating system is being used here?
Ans. 
The feature of the operating system being used here is multitasking.
• Allows multiple applications to run simultaneously

• Switches between tasks quickly

• Ensures efficient utilization of system resources
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Q2. 
Count of Sum of Consecutives Problem Statement
You are given a positive integer 'N'. Your objective is to determine the number of ways to express 'N' as the sum of two or more consecutive natural numbers.
...read more
Ans. 
Count the number of ways to express a positive integer as the sum of two or more consecutive natural numbers.
• Iterate through possible consecutive sequences starting from 1 up to N/2

• Check if the sum of the sequence equals N

• Count the valid sequences and return the total count
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Round duration - 60 minutes
Round difficulty - Medium

It was of 60 minutes,

Questions asked were
1. Swap without temp variable
2. A problem question in which I was asked to find the ball with odd weight out of the remaining in the least number of attempts and write an algorithm for it.
3. Code to insert in the middle of circular linked list, code to find middle element of a singly linked list with knowing the number of elements in it.
4. Socket programming
5. Operating system concepts
6. Types of joins in DBMS
7. A DBMS query
8. Print in C without a semi colon
9. If I have any questions in the end.

Q1. 
Swap Numbers Without Temporary Variable
Your task is to interchange the values of two numbers given as variables 'X' and 'Y' without using a temporary variable or any additional variable.
Explanation:
Y...read more
Ans. 
Swap two numbers without using a temporary variable.
• Use bitwise XOR operation to swap the values of X and Y without using a temporary variable.

• The XOR operation works by flipping the bits of the numbers.

• After swapping, X = X XOR Y and Y = X XOR Y.

• Finally, X = X XOR Y to get the original value of Y in X.
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Q1. Tell me about yourself.
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