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National Instruments Researcher Interview Questions and Answers
National Instruments Researcher Interview Experiences
1 interview found
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?
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Interview Questionnaire
4 Questions
- Q1. Implement the following code using gates(MUX and multiplier) If(A): F = D*E Else: F = G*H
- Ans.
Implement code using MUX and multiplier gates for conditional assignment
Use a 2:1 MUX to select between D*E and G*H based on A
Use a multiplier gate to calculate D*E and G*H
Connect the output of the MUX to the input of the multiplier gate
Ensure proper sizing of gates to meet design requirements
- Q2. Draw State diagram to find a pattern 1011.Important to ask: If overlap is allowed.If there are 1000 states, we represent using 10 bits. If ‘P’ power is consumed when the system moves from State 0 to State ...
- Q3. Timing analysis of Sequential and combinational logic: Definition of Setup time. How does it affect the system. Find the minimum clock frequency given Tcq, delay of all the gates, Tsu, Thold
- Ans.
Setup time is the minimum time required for the input signal to be stable before the clock edge arrives.
Setup time is a critical parameter in timing analysis of sequential and combinational logic.
It affects the system by ensuring that the input signal is stable before the clock edge arrives, preventing errors in the output.
The minimum clock frequency can be calculated using the formula: Fmin = 1 / (Tcq + Tsu + Thold), ...
- Q4. Due to some other type of fabrication, if clock frequency happened to be more than whatit is supposed to be(the one calculated above), how do you handle that situation?
Interview Preparation Tips
Experience: Shortlisted 8 students from resumes for interview.
Parameters for shortlisting (at each stage of process):Varied ResumeAny work done in FGPACG - I had CGPA of 8.66Internship - Was an Intern at QualcommProjects - Digital IC Design-used Standard Cell Design,Wireless-OFDMsynchronization and channel estimation,Automatic speech recognition)
Round: Technical Interview
Experience: Only 1 round of interview was taken.No HR round and only Technical Questions were asked.
Basics in our courses(state diagrams etc.) were tested.Concepts were explained and was asked questions. So, skill ofgrasping and applying were also testedSpeed didn’t matter. How aproblem was approached,thought were testedNo knowledge regarding minors/electives tested.
For Core:No courses/electives looked at(as nothing related to FPGA is taught)Nothing related to BTP/DDP
Tips: Good skills of maths might help.
In the interview, in 2nd question which was mentioned, whether repetition isallowed or not was asked by the candidate.This really mattered as that was theonly thing different he has done from the person who did an intern in FPGA andit might helped in getting selected finally :)
Skills: Grasping Power, Approaching a Problem, Thought Process, Math Skills, C++, C, Python, Matlab, Networks, Digital Signal Processing, Data Structures , Digital Systems, Algorithms
College Name: IIT MADRAS
I was interviewed before Jul 2021.
(1 Question)
- Q1. Project related questions
Interview Preparation Tips
Selected
I applied via Campus Placement
(1 Question)
- Q1. 1. Variant of Binary Search
- Ans.
Variant of Binary Search
Implement a binary search with a twist, such as searching for a range of values instead of a single value
Modify the binary search algorithm to handle duplicates in the array
Consider implementing a binary search for a rotated sorted array
Interview Preparation Tips
Skills evaluated in this interview
I applied via LinkedIn and was interviewed before Apr 2023. There were 2 interview rounds.
Leetcode questions, not very hard
(1 Question)
- Q1. General hr questions
Selected
I applied via Campus Placement and was interviewed before Aug 2022. There were 3 interview rounds.
Basics of Aptitude and Engineering
(5 Questions)
- Q1. Types of Transmission Lines
- Ans.
Transmission lines are used to carry signals or power from one point to another.
Types include coaxial cables, twisted pair cables, and optical fibers.
Coaxial cables have a central conductor surrounded by an insulating layer and a metallic shield.
Twisted pair cables consist of two insulated copper wires twisted together to reduce interference.
Optical fibers use light to transmit data and are made of glass or plastic fib...
- Q2. Diplexer vs Duplexer
- Ans.
A diplexer is a device that separates or combines different frequency bands, while a duplexer is a device that allows two-way communication over a single channel.
Diplexer is used to separate different frequency bands in communication systems.
Duplexer allows two-way communication over a single channel by separating transmit and receive signals.
Example: Diplexer is used in satellite communication to separate uplink and d...
- Q3. Phase delay vs Group delay
- Ans.
Phase delay is the time difference between input and output signals, while group delay is the rate of change of phase delay with respect to frequency.
Phase delay is the time delay experienced by a signal passing through a system, while group delay is the derivative of phase delay with respect to frequency.
Phase delay is constant for all frequencies, while group delay varies with frequency.
In audio systems, phase delay ...
- Q4. Antenna Basics of the RF
- Q5. Final year Project details
Software Engineer Interview Questions & Answers
Keysight Technologies
Anonymous
posted on 28 Dec 2024
Selected
I applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
1 hr test , basics C++, oops, pointers
(1 Question)
- Q1. Oops concepts , smart pointers, ask me write code of oops concepts and then cross questioning
Interview Preparation Tips
Software Engineer Interview Questions & Answers
Keysight Technologies
Anonymous
posted on 14 Jan 2025
I applied via Campus Placement and was interviewed in Dec 2024. There were 2 interview rounds.
MCQ questions in a time frame of 45 mins.
(2 Questions)
- Q1. Resume based questions
- Q2. Questions on Stack
I applied via Campus Placement and was interviewed in Jul 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Basic C related questions, and computer architecture and operating systems
Interview Preparation Tips
Intern Interview Questions & Answers
Texas Instruments
Gaddampally Vishwasen Reddy 4-Year B.Tech. Electronics Engineering
posted on 2 Apr 2024
(1 Question)
- Q1. Asked about questions on network synthesis
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