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National Instruments Interview Questions, Process, and Tips
Top National Instruments Interview Questions and Answers
- Q1. What is Orthogonal Frequency Division Multiplexing (OFDM) and what are the reasons for using Orthogonal Frequency Division Multiple Access (OFDMA)?asked in Software Intern interview
- Q2. Given a list of words. Given three operations find out the minimum steps to reach from source string to destination string. Basically, -----/ this is the problem with som ...read moreasked in Software Engineer interview
- Q3. Find the highest floor, from where if an egg is dropped will not break. k floor building and n eggs are given.asked in Software Engineer III interview
National Instruments Interview Experiences
14 interviews found
Gowtham P C
I applied via Campus Placement
Interview Questionnaire
3 Questions
- Q1. They asked me optimise the code I had written for the first question
- Q2. Given a binary tree, find out the maximum sum path from root to leaf. This problem, but they said tree has only positive integers. -----/ . To store the path I had used global array. They asked me alternat...
- Q3. Given a list of words. Given three operations find out the minimum steps to reach from source string to destination string. Basically, -----/ this is the problem with some modification. For this question I...
- Ans.
The question is about finding the minimum steps to reach from a source string to a destination string using three operations.
BFS and DFS are graph traversal techniques that can be used to solve this problem.
BFS is typically used when finding the shortest path or exploring all possible paths in a graph.
DFS is useful when searching for a specific path or exploring deeply into a graph.
In this case, BFS can be used to find...
Interview Preparation Tips
Experience: • 1 question was on time complexity of searching an unsorted array.
• 2 questions were on recursion, ie, number of recursive calls.
• 1 question on analysing given function on string.
• 1 question was on probability(Two hotels, say A and B. Probability of moving from A to B is 2/3, staying at A is 1/3. Probability of moving from B to A and staying at B is 1/2. If they make decisions each hour, and if they were at A at 7:00 pm, what is the probability that they will be at B at 10:00 pm).
• If a set has elements {1,2,3,4 .... n}. Then what is the sum of elements of it's power set. (Ex: S = {1,2}. Then power set is {{},{1},{2},{1,2}}. The sum is 6.
• If a set has elements {1,2,3,4,5,6,7,8,9,10}. Then how many subsets of 3 elements has no consecutive elements.
• 1 question was on designing a DFA for a string starting with a and ending with c and has at least b in it.
• 1 question had machine instructions. We had to find out minimum number of cycles needed to execute the given set of instructions. (a) If the instructions are executed in the given order. (b) If the instructions are executed in random order.
• 1 puzzle on bridges.
Tips: In this round they not only see the answer. They also verify how you approached(So, give correct explanation to your answers).
Duration: 90 minutes
Total Questions: 10
Round: Coding Round
Experience: Two questions were there. 3 hours duration.
1. Long question, I don't remember fully. I'll just give input/output examples. It was basically on string decoding. If jon2snow3 is there the decoded string will be jonjonsnowjonjonsnowjonjonsnow. Given a string and an integer k we have print the kth character in the decoded string
input:
jon2snow3
8
output:
n
2. Given an array and an integer k return the number of contiguous sub arrays whose sum is divisible by k.
input format:
n k
input:
4 5
10 0 4 5
output:
4
explaination: {10},{0},{10,0},{5} are the sub arrays with sum divisible by 5.
Tips: You will have lots of time, so try to optimise the solution if you can. Remember here also they review each individual's code.
Round: Technical Interview
Experience: They will help you a lot if you are stuck at some point in the question. You have to be smart enough to grasp the clue.
Tips: They only ask questions only on data structures and algorithms.
Skill Tips: You have to be strong in coding. Algorithm questions will be mostly on dynamic programming. Data structures questions are mostly on trees.
Skills: C Programming, Maths(esp Probability), Algorithms And Data Structures
Duration: 5
College Name: JSS Mahavidyapeetha Sri Jayachamarajendra College Of Engineering, Mysore
Skills evaluated in this interview
Software Engineer Interview Questions asked at other Companies
Anonymous
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?
- Q2. What is sampling, and can you explain the derivation associated with it?
- 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...
Interview Preparation Tips
Software Intern Interview Questions asked at other Companies
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
(2 Questions)
- Q1. About my current company
- Q2. About the work I do in my current company
Coding round where they ask few coding questions
Software Engineer Interview Questions asked at other Companies
arnav singh
Selected
I applied via Campus Placement and was interviewed in Jan 2024. There were 3 interview rounds.
1 hour basic leetcode questions
(1 Question)
- Q1. Discussion about resume and two coding questions which i had to solve on their coding platform
(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
National Instruments interview questions for popular designations
3 rounds online, dsa, hr
(2 Questions)
- Q1. Dsa on dp topic
- Q2. Dsa on dp topics
Software Engineer Interview Questions asked at other Companies
I applied via Campus Placement and was interviewed in Feb 2024. There were 3 interview rounds.
It was online coding test consist of 2 question
One from DP and other graph
One question of DP within in 45 min time constraints
(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.
Interview Preparation Tips
Software Engineer Interview Questions asked at other Companies
Software Development Engineer Intern Interview Questions & Answers
Saurabh Gupta
posted on 30 May 2024
I applied via Campus Placement and was interviewed in Apr 2024. There was 1 interview round.
(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.
Interview Preparation Tips
Skills evaluated in this interview
Software Development Engineer Intern Interview Questions asked at other Companies
Aditi Kulkarni
2 coding questions, aptitude and electronics
Intern Interview Questions asked at other Companies
I applied via Walk-in and was interviewed in Dec 2023. There was 1 interview round.
(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
Deepshikha
I applied via Campus Placement and was interviewed in Apr 2023. There were 2 interview rounds.
Level was medium to hard
(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
Skills evaluated in this interview
Software Engineer Interview Questions asked at other Companies
Some old coding platform with limited testcases
(1 Question)
- Q1. Normal dp problems
(1 Question)
- Q1. About resume and projects
Intern Interview Questions asked at other Companies
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National Instruments Interview FAQs
Some of the top questions asked at the National Instruments interview -
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 Interviews By Designations
- National Instruments Software Engineer Interview Questions
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Interview Questions for Popular Designations
National Instruments Interview Process
based on 11 interviews
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