Indian Institute of Technology (IIT), Chennai
Chennai, Tamil Nadu
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Filter interviews byIndian Institute of Technology (IIT), Chennai Placement Interview Questions
Updated
4 Dec 2024
28 interviews found
I was interviewed in Sep 2017.
5 Interview Rounds
Interview Questions
- Q1. How do you implement the overlap-add method of convolution?
- Q2. Obtain the Nyquist criterion.
- Q3. Obtain the Nyquist sampling frequency for an unevenly distributed band-limited signal.
- Q4. How do you implement interpolation in discrete-time domain?
- Q5. How do you obtain the in-phase and quadrature components of a real pass-band signal?
- Q6. How many ways would one arrange sets of coloured balls, the first set all red, the next all blue, and the last all green, and all balls in a set are identical, ...read more
- Q7. How do you obtain the bit-rate for quantization of a band-limited signal?
- Q8. If you were offered an intern in Communications in Hyderabad, would you take it?
Interview Preparation Tips
Round: Test
Experience: Each section had 20 multiple choice questions and each section was allotted 30 minutes. The aptitude section was fairly difficult due to time constraints. The other two sections had several questions with unfamiliar concepts; however the other questions were easy.
Tips: Practice aptitude questions to increase speed in problem-solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: The first round was fairly short. The interviewer asked only three questions and I was able to answer all except for the overlap-add question. However I had the intuition to get to part of the answer.
Tips: Just brush up concepts in analog communications and DSP.
Round: Technical Interview
Experience: The second round was longer. The interviewer asked questions mostly in DSP and analog communications. I was able to answer all but one, which involved interpolation in discrete-time domain. The interviewer gave hints on how to get to the solution of the bit-rate and the interpolation question but I was able to answer only the former. The interviewer also asked if I did a course on Linear Algebra, and I affirmed it but I had no memory of it.
Tips: Just like in the first round, but expect more difficult questions.
Round: HR Interview
Experience: The HR interview was very short and the interviewer did not ask any of the typical HR questions except for if I were offered an internship in Communications, I would take it.
Tips: If you make it this far, you'll most likely make it. There is no need to prepare anything in advance.
College Name: IIT Madras
Experience: Each section had 20 multiple choice questions and each section was allotted 30 minutes. The aptitude section was fairly difficult due to time constraints. The other two sections had several questions with unfamiliar concepts; however the other questions were easy.
Tips: Practice aptitude questions to increase speed in problem-solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: The first round was fairly short. The interviewer asked only three questions and I was able to answer all except for the overlap-add question. However I had the intuition to get to part of the answer.
Tips: Just brush up concepts in analog communications and DSP.
Round: Technical Interview
Experience: The second round was longer. The interviewer asked questions mostly in DSP and analog communications. I was able to answer all but one, which involved interpolation in discrete-time domain. The interviewer gave hints on how to get to the solution of the bit-rate and the interpolation question but I was able to answer only the former. The interviewer also asked if I did a course on Linear Algebra, and I affirmed it but I had no memory of it.
Tips: Just like in the first round, but expect more difficult questions.
Round: HR Interview
Experience: The HR interview was very short and the interviewer did not ask any of the typical HR questions except for if I were offered an internship in Communications, I would take it.
Tips: If you make it this far, you'll most likely make it. There is no need to prepare anything in advance.
College Name: IIT Madras
I was interviewed in Sep 2017.
3 Interview Rounds
Interview Questions
- Q1. Find the sum of two numbers without using any mathematical operarors.
- Q2. Delete a node from linked list when we are given a reference to the node. But the head pointer is not given.
Interview Preparation Tips
Round: Technical Interview
Tips: Strong understanding and thorough knowledge of C programming.
College Name: IIT Madras
Tips: Strong understanding and thorough knowledge of C programming.
College Name: IIT Madras
I was interviewed in Sep 2017.
5 Interview Rounds
Interview Questions
- Q1. Questions mostly from Digital Electronics
- Q2. Questions regarding interested fields
Interview Preparation Tips
Round: Test
Experience: 3 sections, each with 20 questions to be answered in 30 minutes.
Marking Scheme: +1/-0.25
Aptitude:
Simple reasoning, logical and comprehension type questions.
C Programming:
Questions requiring knowledge of C syntax, pointers, recursion, queue, stack, linked lists and basic programming.
Electronics:
Questions from Digital (Combinational and Sequential Logic), Analog (Circuits with Diodes and transistors), Semiconductor Physics (PN Junctions) and VLSI domains.
Tips: Aptitude:
Time management is key. Only basic math and logical skills required.
C Programming:
Revision of C Syntax and basic data structures/pointers would be required.
Electronics:
Revision of relevant course curriculum is sufficient.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: Was asked questions related to my interests, courses and projects.
Tips: A good resume and preparation on the concepts that are relevant to the points in the resume are required.
College Name: IIT Madras
Experience: 3 sections, each with 20 questions to be answered in 30 minutes.
Marking Scheme: +1/-0.25
Aptitude:
Simple reasoning, logical and comprehension type questions.
C Programming:
Questions requiring knowledge of C syntax, pointers, recursion, queue, stack, linked lists and basic programming.
Electronics:
Questions from Digital (Combinational and Sequential Logic), Analog (Circuits with Diodes and transistors), Semiconductor Physics (PN Junctions) and VLSI domains.
Tips: Aptitude:
Time management is key. Only basic math and logical skills required.
C Programming:
Revision of C Syntax and basic data structures/pointers would be required.
Electronics:
Revision of relevant course curriculum is sufficient.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: Was asked questions related to my interests, courses and projects.
Tips: A good resume and preparation on the concepts that are relevant to the points in the resume are required.
College Name: IIT Madras
2 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: Aptitude
Duration: 1 hour 30 minutes
Total Questions: 60
College Name: IIT Madras
Experience: Aptitude
Duration: 1 hour 30 minutes
Total Questions: 60
College Name: IIT Madras
I was interviewed in Sep 2017.
5 Interview Rounds
Interview Questions
- Q1. How is overlap-add implemented?
- Q2. Obtain the Nyquist criterion.
- Q3. How do you demodulate a QAM signal?
- Q4. How do you implement interpolation in discrete-time domain?
- Q5. If you were given an intern in Hyderabad, would you take it?
Interview Preparation Tips
Round: Test
Experience: There were 20 questions in each section and 30 minutes for each. Aptitude was fairly difficult due to time. The remaining two sections had a lot of questions with unfamiliar concepts, like linked lists and digital communications. However, the questions were easy otherwise.
Tips: Practice aptitude questions to increase speed of solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: HR Interview
Experience: The interviewer was friendly and asked only if I was interested in a Communications intern in Hyderabad. He didn't ask any of the typical HR questions.
College Name: IIT Madras
Experience: There were 20 questions in each section and 30 minutes for each. Aptitude was fairly difficult due to time. The remaining two sections had a lot of questions with unfamiliar concepts, like linked lists and digital communications. However, the questions were easy otherwise.
Tips: Practice aptitude questions to increase speed of solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: HR Interview
Experience: The interviewer was friendly and asked only if I was interested in a Communications intern in Hyderabad. He didn't ask any of the typical HR questions.
College Name: IIT Madras
I applied via Campus Placement and was interviewed before Dec 2015.
3 Interview Rounds
Interview Questions
- Q1. Gaussian mixture, pdf of sum of 2 RV
- Q2. Maximal Ratio Combining in MIMO, Quantization Noise power
- Q3. Viterbi decoder
- Q4. Average Energy, Pe in PAM, QAM
- Q5. Asymptotic bound on capacity
- Q6. MMSE derivation
- Q7. Internship details
Interview Preparation Tips
Round: Technical Interview
Experience: Asked to derive and explain all the questions
Tips: Be confident and carefully listen to the questions
Round: Technical Interview
Experience: Asked to derive and explain all the questions
Tips: Be confident and carefully listen to the questions
Round: HR Interview
Experience: Discussion on internship, job details and interview performance
Tips: No need to be worry since if you are attending HR, its most likely that you will get the offer
Skills: Wireless Communication, Information Theory, Probability Concepts, Approaching A Problem, Knowledge Gained Through Recent Research Project, Communication Systems
College Name: IIT Madras
Experience: Asked to derive and explain all the questions
Tips: Be confident and carefully listen to the questions
Round: Technical Interview
Experience: Asked to derive and explain all the questions
Tips: Be confident and carefully listen to the questions
Round: HR Interview
Experience: Discussion on internship, job details and interview performance
Tips: No need to be worry since if you are attending HR, its most likely that you will get the offer
Skills: Wireless Communication, Information Theory, Probability Concepts, Approaching A Problem, Knowledge Gained Through Recent Research Project, Communication Systems
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016.
4 Interview Rounds
Interview Questions
- Q1. Basic questions about RRC filters, matched filtering, IIR and FIR filters, basics of probability and questions regarding past projects
Interview Preparation Tips
Round: Test
Experience: The questions on aptitude were based on quantitative and logical reasoning. Questions were simple but you should have a good speed. In the programming section there were find the outout kind of questions and some theory questions based on virtual functions and abstract classes.
In technical questions we had to choose from hardware software or communication. I wrote the test for communications. Questions were based on different modulation techniques like qpsk, msk and also based on dsp. Some questions were about coding techniques as well.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: The overall experience was really good. The interviewers were frirndly and were helping out in case you get stuck. They want to see how clearly you know your basics.
College Name: IIT Madras
Experience: The questions on aptitude were based on quantitative and logical reasoning. Questions were simple but you should have a good speed. In the programming section there were find the outout kind of questions and some theory questions based on virtual functions and abstract classes.
In technical questions we had to choose from hardware software or communication. I wrote the test for communications. Questions were based on different modulation techniques like qpsk, msk and also based on dsp. Some questions were about coding techniques as well.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: The overall experience was really good. The interviewers were frirndly and were helping out in case you get stuck. They want to see how clearly you know your basics.
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016.
4 Interview Rounds
Interview Questions
- Q1. 1)Equations of Cordic, Block diagram, and asked me to write code in verilog for Cordic 2)Digital testing : how my minimum test cases are required to tell whethe...read more
Interview Preparation Tips
Round: Test
Experience: Basic questions. From Digital circuits, analog and SSD basics.
Round: Technical Interview
Experience: Interview went on for 1 and half hr. Just 1 round. Asked me many questions and tried to trick me, saying that i think it is wrong and stuff like that. Be confident and think with a calm mind before answering.
They were referring my resume and asking questions in around my domain itself. Asked me atleast one question from all the subjects. And questions on my internships, course projects etc.
College Name: IIT Madras
Experience: Basic questions. From Digital circuits, analog and SSD basics.
Round: Technical Interview
Experience: Interview went on for 1 and half hr. Just 1 round. Asked me many questions and tried to trick me, saying that i think it is wrong and stuff like that. Be confident and think with a calm mind before answering.
They were referring my resume and asking questions in around my domain itself. Asked me atleast one question from all the subjects. And questions on my internships, course projects etc.
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016.
5 Interview Rounds
Interview Questions
- Q1. Four people and torch problem?
- Q2. What is the difference between AC and DC?
- Q3. Fill the cells in the pyramid?
- Q4. What is alternator and generator?
- Q5. What is the complexity of quick sort?
- Q6. What are interesting u did?
- Q7. Explain SHA Algorithm?
- Q8. 5 heads and two tails, separate into two groups such that two groups should have equal number of tails?
- Q9. Delete a node in linked list?
- Q10. Tell me about yourself?
- Q11. What are the challenges you faced in the interns?
- Q12. Preference of job place?
- Q13. How will you solve the disputes?
- Q14. What is your view about Qualcomm?
Interview Preparation Tips
Round: Test
Experience: Simple aptitude questions and technical questions which includes OOPS, Computer networks
Duration: 1 hour 25 minutes
Total Questions: 50
College Name: IIT Madras
Experience: Simple aptitude questions and technical questions which includes OOPS, Computer networks
Duration: 1 hour 25 minutes
Total Questions: 50
College Name: IIT Madras
I applied via Campus Placement
4 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: Aptitude and programming questions were easy but needed speed and accuracy. Technical round had questions from the profile we selected (hardware or communication or software). I chose hardware which had questions from digital electronics and solid state devices. Third section had lengthy questions but less time. So attempting perfectly the questions you know is better than spending time on all the questions without fully solving.
Tips: Technical round was tough given the time constraint. So be well prepared for it
Duration: 90 minutes
Total Questions: 60
Round: Technical Interview
Experience: Basic questions from digital circuits like working of flipflops,FSM design, mux from logic gates, counters and frequency dividers etc.
Also questions about my project mentioned in resume. After that a little chat about the kind of work and the projects there.
Tips: Be clear with the basic concepts of the subject. Be confident and don’t feel nervous while answering. Write a genuine project in your resume as they may ask you everything about the project.
Round: HR Interview
Experience: Asked to summarize my resume. A small conversation about my interests. I was asked how I came to know about Qualcomm. Then they asked if I had any doubts and later informed me that I was selected. It was a very friendly interaction.
Tips: Knowing a little bit about Qualcomm may help.
Skills:
Duration: 2
College Name: IIT Madras
Experience: Aptitude and programming questions were easy but needed speed and accuracy. Technical round had questions from the profile we selected (hardware or communication or software). I chose hardware which had questions from digital electronics and solid state devices. Third section had lengthy questions but less time. So attempting perfectly the questions you know is better than spending time on all the questions without fully solving.
Tips: Technical round was tough given the time constraint. So be well prepared for it
Duration: 90 minutes
Total Questions: 60
Round: Technical Interview
Experience: Basic questions from digital circuits like working of flipflops,FSM design, mux from logic gates, counters and frequency dividers etc.
Also questions about my project mentioned in resume. After that a little chat about the kind of work and the projects there.
Tips: Be clear with the basic concepts of the subject. Be confident and don’t feel nervous while answering. Write a genuine project in your resume as they may ask you everything about the project.
Round: HR Interview
Experience: Asked to summarize my resume. A small conversation about my interests. I was asked how I came to know about Qualcomm. Then they asked if I had any doubts and later informed me that I was selected. It was a very friendly interaction.
Tips: Knowing a little bit about Qualcomm may help.
Skills:
Duration: 2
College Name: IIT Madras
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