Nvidia Interview Questions, Process, and Tips

Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions on OOPS and OS mainly.

Q1. CS Fundamentals Question
What is Little and Big Endian?
Ans. 
Little and big endian are two ways of storing multibyte data-types ( int, float, etc). In little endian machines, last byte of binary representation of the multibyte data-type is stored first. On the other hand, in big endian machines, first byte of binary representation of the multibyte data-type is stored first.
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Q2. CS Fundamentals Question
Program to determine if your system is little or big endian
Ans. 
#include <bits/stdc++.h>
using namespace std;

int main()
{
	if constexpr (endian::native == endian::big)
		cout << "big-endian";
	else if constexpr (endian::native == endian::little)
		cout << "little-endian";
	else
		cout << "mixed-endian";
}
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Q3. OOPS Question
What is a volatile keyword?
Ans. 
The volatile keyword is intended to prevent the compiler from applying any optimizations on objects that can change in ways that cannot be determined by the compiler. 
Objects declared as volatile are omitted from optimization because their values can be changed by code outside the scope of current code at any time. The system always reads the current value of a volatile object from the memory location rather than ...read more
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Q4. C Question
What is the use of a function pointer in C?
Ans. 
In the C function pointer is used to resolve the run time-binding. A function pointer is a pointer that stores the address of the function and invokes the function whenever required.
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Q5. Data Structure Question
Design data structure to implement multi threading.
Ans. 
If you're doing lots of reads and writes on it, a ConcurrentHashMap is possibly the best choice, if it's mostly reading, a common Map wrapped inside a collection using a ReadWriteLock (since writes would not be common, you'd get faster access and locking only when writing).
Collections.synchronizedMap() is possibly the worst case, since it might just give you a wrapper with all methods synchronized, avoid it at all cost
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Q6. Operating System Question
What does a kernel do?
Ans. 
Kernel acts as a bridge between applications and data processing performed at hardware level using inter-process communication and system calls.
Kernel loads first into memory when an operating system is loaded and remains into memory until operating system is shut down again. It is responsible for various tasks such as disk management, task management, and memory management.
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Q7. OOPS Question
What is a storage class?
Ans. 
Storage Classes are used to describe the features of a variable/function. These features basically include the scope, visibility and life-time which help us to trace the existence of a particular variable during the runtime of a program. To specify the storage class for a variable, the following syntax is to be followed:
Syntax: storage_class var_data_type var_name;
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Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.

Q1. Basic HR Questions
1. Asked me if I have brother and/or sister…then about parents
2. What does your father expect from you?
3. Asked about future studies. Why I want to work and not want to go for PG?
4. Are y...read more
Ans. 
Tip 1 : The cross questioning can go intense some time, think before you speak.

Tip 2 : Be open minded and answer whatever you are thinking, in these rounds I feel it is important to have opinion.

Tip 3 : Context of questions can be switched, pay attention to the details. It is okay to ask questions in these round, like what are the projects currently the company is investing, which team you are mentoring. How all is the
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