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National Instruments Interview Questions, Process, and Tips

Updated 4 Apr 2025

Top National Instruments Interview Questions and Answers

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National Instruments Interview Experiences

Popular Designations

14 interviews found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Find floor square root of number n, without using sort() function. 1<=n<=10^12
  • Ans. 

    Implement a function to find the floor square root of a given number without using sort() function.

    • Use binary search to find the square root of the number.

    • Start with a low value of 0 and high value of n.

    • Check the middle value and adjust the range accordingly.

    • Repeat until you find the floor square root.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - patience during interview

Skills evaluated in this interview

Software Development Engineer Intern Interview Questions asked at other Companies

Q1. Say you're dealing with really long integers. They're too long to fit into a regular datatype, so linked lists are used to store them, with each node of the list containing one digit. Now the problem is, given two linked lists, i.e. two rea... read more
View answer (2)
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Mar 2025, where I was asked the following questions.

  • Q1. What is the difference between discrete signals and digital signals?
  • Ans. 

    Discrete signals are defined at specific intervals, while digital signals represent discrete values using binary numbers.

    • Discrete signals can be time-based, like a sequence of samples from an analog signal.

    • Digital signals are a type of discrete signal that specifically uses binary values (0s and 1s).

    • An example of a discrete signal is a sampled audio waveform, while a digital signal could be a digital audio file like MP...

  • Answered by AI
  • Q2. What is sampling, and can you explain the derivation associated with it?
  • Ans. 

    Sampling is the process of selecting a subset of data from a larger population for analysis.

    • Sampling helps in making inferences about a population without examining every individual.

    • Types of sampling include random sampling, stratified sampling, and systematic sampling.

    • Example: In a survey of 1,000 people, selecting 100 randomly to represent the larger group.

    • The Central Limit Theorem states that the distribution of sam...

  • Answered by AI
  • Q3. What is Orthogonal Frequency Division Multiplexing (OFDM) and what are the reasons for using Orthogonal Frequency Division Multiple Access (OFDMA)?
  • Ans. 

    OFDM is a digital modulation technique that divides a signal into multiple closely spaced sub-carriers, improving data transmission efficiency.

    • OFDM allows for high data rates by utilizing multiple sub-carriers simultaneously.

    • It is resistant to multipath fading, making it suitable for wireless communication.

    • OFDMA, a variant of OFDM, enables multiple users to share the same channel by allocating different sub-carriers to...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - NA

Software Intern Interview Questions asked at other Companies

Q1. 2nd TR:- 1. How can we reduce page loading time in a website.
View answer (1)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. About my current company
  • Q2. About the work I do in my current company
Round 2 - Coding Test 

Coding round where they ask few coding questions

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (225)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jan 2024. There were 3 interview rounds.

Round 1 - Coding Test 

1 hour basic leetcode questions

Round 2 - Technical 

(1 Question)

  • Q1. Discussion about resume and two coding questions which i had to solve on their coding platform
Round 3 - One-on-one 

(2 Questions)

  • Q1. Tell me about a time when you showed leadership qulities
  • Q2. Take me through your resume

Software Engineer Intern Trainee Interview Questions asked at other Companies

Q1. find average salary of employees from given table for each designation where employee age greater than 30
View answer (1)

National Instruments interview questions for popular designations

 Software Engineer

 (6)

 Intern

 (2)

 Researcher

 (1)

 Software Intern

 (1)

 Software Engineer Intern Trainee

 (1)

 Software Development Engineer Intern

 (1)

 Software Engineer III

 (1)

 Accounts Manager

 (1)

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

3 rounds online, dsa, hr

Round 2 - One-on-one 

(2 Questions)

  • Q1. Dsa on dp topic
  • Q2. Dsa on dp topics

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (225)

Software Engineer Interview Questions & Answers

user image Saurabh Gupta

posted on 22 Aug 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Feb 2024. There were 3 interview rounds.

Round 1 - Coding Test 

It was online coding test consist of 2 question
One from DP and other graph

Round 2 - Coding Test 

One question of DP within in 45 min time constraints

Round 3 - Technical 

(1 Question)

  • Q1. Floor value of square root of a number
  • Ans. 

    Floor value of square root of a number is the largest integer less than or equal to the square root.

    • The floor value of square root of a number can be found using mathematical functions like floor() or integer division.

    • For example, the floor value of square root of 16 is 4, as sqrt(16) = 4.

    • For non-perfect square numbers, the floor value of square root can be calculated using approximation methods.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Go through DSA and core subjects

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (225)

Intern Interview Questions & Answers

user image Aditi Kulkarni

posted on 17 Dec 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

2 coding questions, aptitude and electronics

Intern Interview Questions asked at other Companies

Q1. Case. There is a housing society “The wasteful society”, you collect all the household garbage and sell it to 5 different businesses. Determine what price you will pay to the society members in Rs/kg, given you want to make a profit of 20% ... read more
View answer (8)

Researcher Interview Questions & Answers

user image Anonymous

posted on 2 Jan 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Walk-in and was interviewed in Dec 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. What is the conduction? Given a material asking how do we modify the structure to dissipate the heat faster?

Researcher Interview Questions asked at other Companies

Q1. What are the methods for identifying and resolving defects related to HPDC (High-Pressure Die Casting)?
View answer (1)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Apr 2023. There were 2 interview rounds.

Round 1 - Coding Test 

Level was medium to hard

Round 2 - Technical 

(5 Questions)

  • Q1. Technical interview
  • Q2. Questions on DSA Cs fundamentals
  • Q3. Coding questions
  • Q4. Ques on String array
  • Q5. To print tree in anticlock wise direction
  • Ans. 

    To print a tree in anticlockwise direction, start from the bottom left and traverse each level from right to left.

    • Start from the bottom left of the tree

    • Traverse each level from right to left

    • Print the nodes as you traverse

  • Answered by AI

Skills evaluated in this interview

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (225)

Intern Interview Questions & Answers

user image Anonymous

posted on 20 Mar 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Some old coding platform with limited testcases

Round 2 - Technical 

(1 Question)

  • Q1. Normal dp problems
Round 3 - Manegeral 

(1 Question)

  • Q1. About resume and projects

Intern Interview Questions asked at other Companies

Q1. Case. There is a housing society “The wasteful society”, you collect all the household garbage and sell it to 5 different businesses. Determine what price you will pay to the society members in Rs/kg, given you want to make a profit of 20% ... read more
View answer (8)

I applied via Approached by Company and was interviewed in Feb 2022. There were 3 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Find the highest floor, from where if an egg is dropped will not break. k floor building and n eggs are given.
  • Ans. Unless you have more than one egg, apply binary search. keep a maximum safe floor value starting from 1st floor. Update the maximum safe floor in binary search if egg doesn't break on a floor. when you have only one egg left, start linearly from the maximum safe floor and go up one by one.
  • Answered Anonymously
  • Q2. Explain object oriented concepts and design in detail.
  • Ans. 

    Object-oriented concepts involve creating classes and objects to organize and structure code.

    • Classes define the properties and behaviors of objects

    • Objects are instances of classes that can interact with each other

    • Inheritance allows for the creation of subclasses that inherit properties and behaviors from a parent class

    • Polymorphism allows for objects to take on multiple forms and behave differently depending on the cont...

  • Answered by AI
Round 2 - One-on-one 

(1 Question)

  • Q1. Technical Discussions on past experiences
Round 3 - One-on-one 

(1 Question)

  • Q1. A discussion with hiring manager.

Interview Preparation Tips

Topics to prepare for National Instruments Software Engineer III interview:
  • Binary Search
  • Dynamic Programming
  • OOP concept
  • Design Patterns
  • Optimising Solutions
  • Practice competitve coding
Interview preparation tips for other job seekers - Keep practicing Algorithms and DS. Be positive and confident.

Skills evaluated in this interview

Software Engineer III Interview Questions asked at other Companies

Q1. Find the highest floor, from where if an egg is dropped will not break. k floor building and n eggs are given.
View answer (2)

National Instruments Interview FAQs

How many rounds are there in National Instruments interview?
National Instruments interview process usually has 2 rounds. The most common rounds in the National Instruments interview process are Coding Test, One-on-one Round and Technical.
How to prepare for National Instruments interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at National Instruments. The most common topics and skills that interviewers at National Instruments expect are C++, Labview, Python, Business Intelligence and Career Development.
What are the top questions asked in National Instruments interview?

Some of the top questions asked at the National Instruments interview -

  1. Find the highest floor, from where if an egg is dropped will not break. k floor...read more
  2. Given a list of words. Given three operations find out the minimum steps to rea...read more
  3. Explain object oriented concepts and design in deta...read more
How long is the National Instruments interview process?

The duration of National Instruments interview process can vary, but typically it takes about less than 2 weeks to complete.

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National Instruments Interview Process

based on 11 interviews

Interview experience

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National Instruments Reviews and Ratings

based on 41 reviews

3.9/5

Rating in categories

3.3

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4.6

Work-life balance

3.4

Salary

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Job security

4.2

Company culture

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Promotions

3.4

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