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Cerium Systems VLSI Design and Verification Engineer Interview Questions, Process, and Tips

Updated 12 Apr 2023

Cerium Systems VLSI Design and Verification Engineer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Apr 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Technical 

(11 Questions)

  • Q1. How many combinations of inverter can be made using just 1 nand gate
  • Ans. 

    1 NAND gate can be used to make 2 combinations of inverter.

    • A NAND gate can be used to make an inverter by connecting both inputs together.

    • The output of the NAND gate will be the inverted input.

    • Thus, there are 2 possible combinations of inverter using just 1 NAND gate.

  • Answered by AI
  • Q2. Using 2:1 mux make inverter, AND Gate, OR Gate.
  • Ans. 

    Using 2:1 mux, implement inverter, AND gate, OR gate.

    • For inverter, connect one input to select line and other input to ground

    • For AND gate, connect one input to select line and other input to input signal, output is inverted

    • For OR gate, connect one input to select line and other input to input signal, output is not inverted

    • Use truth tables to verify functionality

  • Answered by AI
  • Q3. 4:1 mux using 2:1 mux
  • Ans. 

    A 4:1 mux can be implemented using two 2:1 muxes.

    • Connect the select line of both 2:1 muxes to the same select line of the 4:1 mux.

    • Connect the output of one 2:1 mux to the input of the other 2:1 mux.

    • Connect the inputs of both 2:1 muxes to the corresponding inputs of the 4:1 mux.

    • The output of the 4:1 mux is the output of the second 2:1 mux.

  • Answered by AI
  • Q4. What is ring counter, Jhonson counter, Sync and Async Counters.
  • Ans. 

    Ring, Johnson, Sync and Async counters are types of digital counters used in electronics.

    • Ring counter is a circular shift register with only one flip-flop set to 1 at a time.

    • Johnson counter is a modified ring counter with complemented output of the last flip-flop fed back to the input.

    • Sync counters use a common clock signal for all flip-flops while Async counters use individual clock signals.

    • Examples of Sync counters a...

  • Answered by AI
  • Q5. Explain the working of Shift Registers
  • Ans. 

    Shift registers are sequential circuits that can store and shift data bits.

    • Shift registers are made up of flip-flops that store data bits.

    • Data can be shifted left or right through the register.

    • Shift registers can be used for serial-to-parallel or parallel-to-serial conversion.

    • Examples of shift registers include the Serial-in-Parallel-out (SIPO) and Parallel-in-Serial-out (PISO) registers.

  • Answered by AI
  • Q6. Setup time and Hold Time
  • Q7. Flip-Flop Conversion (DFF to JKFF more).
  • Ans. 

    Flip-flop conversion from DFF to JKFF

    • Determine the excitation table for JK flip-flop

    • Use the excitation table to derive the input equations for J and K

    • Replace D input with J and K inputs in DFF circuit

    • Verify the functionality of the converted JKFF circuit

  • Answered by AI
  • Q8. Data Types in Verilog
  • Ans. 

    Verilog supports various data types including integer, real, reg, wire, and time.

    • Integer data type is used for whole numbers

    • Real data type is used for decimal numbers

    • Reg data type is used for sequential logic

    • Wire data type is used for combinational logic

    • Time data type is used for simulation time

    • Data types can be declared using keywords like 'integer', 'real', 'reg', 'wire', and 'time'

    • Data types can also be declared wit...

  • Answered by AI
  • Q9. Difference between Task and Functions
  • Ans. 

    Tasks are concurrent and functions are sequential in execution.

    • Tasks can run concurrently and can communicate with each other using shared variables.

    • Functions are executed sequentially and return a value to the calling function.

    • Tasks can be used for parallel processing and can be scheduled by the operating system.

    • Functions are used for modular programming and can be called from other functions or tasks.

    • Example: A task ...

  • Answered by AI
  • Q10. Difference between Bocking and Non-Blocking in Verilog
  • Ans. 

    Blocking waits for a process to complete before moving to the next, while non-blocking allows for concurrent execution.

    • Blocking assignments use '=' operator, while non-blocking use '<=' operator.

    • Blocking assignments are executed sequentially, while non-blocking assignments are executed concurrently.

    • Blocking assignments are used for combinational logic, while non-blocking assignments are used for sequential logic.

    • Exampl

  • Answered by AI
  • Q11. What do you mean by universal Gates?
  • Ans. 

    Universal gates are logic gates that can be used to implement any Boolean function.

    • Universal gates are NAND and NOR gates.

    • They are called universal because they can be used to implement any Boolean function.

    • This is because NAND and NOR gates are functionally complete.

    • This means that any Boolean function can be expressed using only NAND or NOR gates.

    • Other gates like AND, OR, and NOT gates are not functionally complete.

    • F...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Cerium Systems VLSI Design and Verification Engineer interview:
  • Digital Electronics
  • Verilog
Interview preparation tips for other job seekers - Most of the questions were asked from the keywords which i have used in my answers.

Skills evaluated in this interview

Interview questions from similar companies

I was interviewed in Aug 2017.

Interview Preparation Tips

Round: Test
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Technical Interview
Experience: Questions about DS , CN and basic resume

Round: Technical Interview
Experience: Questions about RT OS and memory mapping. And other operating system related questions.
Projects done so far.

I was interviewed in Aug 2017.

Interview Questionnaire 

8 Questions

  • Q1. Basics of C
  • Q2. Puzzles on data structures
  • Q3. Asked on project
  • Q4. C basics
  • Q5. 3 basic and simple codes
  • Q6. Family background
  • Q7. How was technical interviews
  • Q8. Why should we not hire you
  • Ans. 

    I lack experience in a specific technology required for the role.

    • I may not have experience with a specific programming language or framework mentioned in the job description.

    • I may not have worked on projects similar to what your company is working on.

    • I may not have experience with certain tools or technologies that are crucial for the role.

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: It was just mcq questions but had negative marking
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Technical Interview
Experience: It was cool and interactive round and was fun

Round: Technical Interview
Experience: It was interesting but I fumbled a little

Round: HR Interview
Experience: It was ok

College Name: Cummins College Of Engineering For Women (CCOEW)

I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.

Interview Questionnaire 

14 Questions

  • Q1. Four people and torch problem?
  • Q2. What is the difference between AC and DC?
  • Ans. 

    AC and DC are two types of electrical current with different characteristics.

    • AC stands for Alternating Current, while DC stands for Direct Current.

    • AC periodically changes direction, while DC flows in one direction.

    • AC is commonly used in household electrical systems, while DC is used in batteries and electronic devices.

    • AC can be easily transformed to different voltage levels using transformers, while DC requires convert...

  • Answered by AI
  • Q3. Fill the cells in the pyramid?
  • Ans. 

    Fill the cells in the pyramid

    • The pyramid is a pattern of numbers or characters arranged in a triangular shape

    • Each row of the pyramid has one more cell than the previous row

    • Start filling the pyramid from the top and move downwards

    • The cells can be filled with any desired numbers or characters

  • Answered by AI
  • Q4. What is alternator and generator?
  • Ans. 

    An alternator and generator are devices that convert mechanical energy into electrical energy.

    • Both alternators and generators are used to generate electricity.

    • They work on the principle of electromagnetic induction.

    • Alternators are commonly used in modern vehicles to charge the battery and power the electrical systems.

    • Generators are often used as backup power sources during power outages.

    • Examples of alternators include ...

  • Answered by AI
  • Q5. What is the complexity of quick sort?
  • Ans. 

    Quick sort has an average and worst-case time complexity of O(n log n).

    • Quick sort is a divide-and-conquer algorithm.

    • It selects a pivot element and partitions the array around the pivot.

    • The average and worst-case time complexity is O(n log n).

    • However, in the worst-case scenario, it can have a time complexity of O(n^2).

  • Answered by AI
  • Q6. What are interesting u did?
  • Ans. 

    I developed a mobile app for tracking daily water intake and hydration levels.

    • Researched best practices for hydration tracking

    • Designed user-friendly interface for inputting water intake

    • Implemented data visualization for tracking hydration levels

    • Tested app with focus groups for feedback

    • Continuously updated app based on user suggestions

  • Answered by AI
  • Q7. Explain SHA Algorithm?
  • Ans. 

    SHA Algorithm is a cryptographic hash function that takes an input and produces a fixed-size output.

    • SHA stands for Secure Hash Algorithm.

    • It is widely used in various security applications and protocols.

    • SHA-1, SHA-256, SHA-384, and SHA-512 are common variants of SHA.

    • It generates a unique hash value for each unique input.

    • The output is a fixed length, regardless of the input size.

    • SHA is used for data integrity, password h

  • Answered by AI
  • 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?
  • Ans. 

    To delete a node in a linked list, we need to adjust the pointers of the previous node and the next node.

    • Find the node to be deleted

    • Adjust the pointers of the previous node and the next node

    • Free the memory of the deleted node

  • Answered by AI
  • Q10. Tell me about yourself?
  • Ans. 

    I am a passionate software engineer with experience in developing web applications and a strong background in computer science.

    • Experienced in developing web applications using technologies like HTML, CSS, JavaScript, and React

    • Strong background in computer science with knowledge of data structures and algorithms

    • Proficient in programming languages such as Java, Python, and C++

    • Familiar with Agile development methodologies

  • Answered by AI
  • Q11. What are the challenges you faced in the interns?
  • Ans. 

    As an intern supervisor, I faced challenges in terms of communication, technical skills, and time management.

    • Communication barriers due to language or cultural differences

    • Lack of technical skills or knowledge required for the job

    • Difficulty in managing time and meeting deadlines

    • Inability to work independently or as part of a team

    • Resistance to feedback or constructive criticism

    • Limited exposure to real-world scenarios and...

  • Answered by AI
  • Q12. Preference of job place?
  • Ans. 

    I prefer a job place that offers a collaborative and innovative work environment.

    • Prefer a workplace that encourages teamwork and communication

    • Value opportunities for learning and growth

    • Seek a company that fosters creativity and innovation

  • Answered by AI
  • Q13. How will you solve the disputes?
  • Ans. 

    I will solve disputes by promoting open communication, active listening, and finding mutually beneficial solutions.

    • Encourage open and honest communication between parties involved

    • Actively listen to each party's concerns and perspectives

    • Identify common goals and interests to find mutually beneficial solutions

    • Mediate discussions and facilitate negotiations if necessary

    • Document agreements and ensure follow-up to prevent f

  • Answered by AI
  • Q14. What is your view about Qualcomm?
  • Ans. 

    Qualcomm is a leading semiconductor and telecommunications equipment company.

    • Qualcomm is known for its expertise in wireless technologies and mobile chipsets.

    • They have developed popular Snapdragon processors used in smartphones and tablets.

    • Qualcomm has made significant contributions to the advancement of 5G technology.

    • The company has a strong patent portfolio and is involved in licensing its technology to other manufac...

  • Answered by AI

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

Skills evaluated in this interview

I applied via Campus Placement and was interviewed in Dec 2016. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • 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

I was interviewed in Dec 2016.

Interview Questionnaire 

4 Questions

  • Q1. Simple algorithm coding questions, e.g.- fibonacci, prime number
  • Q2. Some hardware questions
  • Q3. Networking questions and some others
  • Q4. Intro, strength, weakness, why we hire you, etc. common HR questions

Interview Preparation Tips

College Name: IIT Kharagpur

I was interviewed in Sep 2016.

Interview Questionnaire 

1 Question

  • Q1. Write a code for scheduling in C
  • Ans. 

    Code for scheduling in C

    • Define a struct for the task with fields like start time, end time, priority, etc.

    • Create an array of tasks and sort them based on priority and start time

    • Implement a scheduling algorithm like Round Robin or Priority Scheduling

    • Use system calls like fork() and exec() to create and execute processes

    • Implement synchronization mechanisms like semaphores or mutexes to avoid race conditions

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: There were 3 sections.Aptitude,C programming,Software / Communication / Hardware
Tips: U should be very fast while solving.Aptitude is normal.C programming qsns mainly consists of simple C like trees,arrays,sorting etc.I chose software for 3rd section as I wanted software profile .It has qsns based on OS(little bit linux),Data structures and Algorithms.
Duration: 2 hours
Total Questions: 60

Round: Technical Interview
Experience: Just asked me qsns related to Data structures
Tips: Solve sums in geeksforgeeks

Round: HR Interview
Experience: Its for fun.HR talks about unrelated things :P .If u got selected for HR,then u are selected for job.

College Name: IIT Kharagpur

Skills evaluated in this interview

I applied via Campus Placement

Interview Questionnaire 

10 Questions

  • Q1. What are static, volatile, const in C mean ?
  • Ans. 

    Static, volatile, const are C keywords used to define properties of variables.

    • Static: used to define a variable that retains its value between function calls

    • Volatile: used to indicate that a variable's value may change unexpectedly, e.g. in an interrupt

    • Const: used to define a variable whose value cannot be changed once initialized

  • Answered by AI
  • Q2. Write a pseudo code to remove a node from a linked list
  • Ans. 

    Pseudo code to remove a node from a linked list

    • Find the node to be removed

    • Update the previous node's next pointer to point to the next node

    • Free the memory occupied by the removed node

  • Answered by AI
  • Q3. How do you manage ISR ?
  • Ans. 

    ISR stands for Interrupt Service Routine. It is managed by prioritizing interrupts and handling them in a timely manner.

    • Prioritize interrupts based on their importance

    • Handle interrupts in a timely manner to prevent delays in the system

    • Ensure that the ISR does not interfere with the normal flow of the program

    • Test the ISR thoroughly to ensure that it works as expected

    • Use appropriate tools and techniques to debug any issu

  • Answered by AI
  • Q4. What is the difference between task, process and thread ?
  • Ans. 

    Task is a unit of work, process is an instance of a program, and thread is a subset of a process.

    • Task is a single unit of work that needs to be completed.

    • Process is an instance of a program that is being executed.

    • Thread is a subset of a process that can run concurrently with other threads.

    • A process can have multiple threads, but a thread can only belong to one process.

    • Threads share the same memory space, while processe...

  • Answered by AI
  • Q5. What is the difference between multi-threading, multi-processing and multi-tasking ?
  • Ans. 

    Multi-threading, multi-processing and multi-tasking are different ways of achieving parallelism in computing.

    • Multi-threading is a technique of dividing a single process into multiple threads that can run concurrently.

    • Multi-processing is a technique of dividing a single process into multiple processes that can run concurrently.

    • Multi-tasking is a technique of running multiple processes or tasks concurrently on a single p...

  • Answered by AI
  • Q6. What is mutex ?
  • Ans. 

    Mutex is a synchronization mechanism used to prevent multiple threads from accessing shared resources simultaneously.

    • Mutex stands for mutual exclusion.

    • It is used to protect shared resources from race conditions.

    • Mutex provides exclusive access to a shared resource.

    • It is used in multi-threaded programming.

    • Mutex can be implemented using locks or semaphores.

  • Answered by AI
  • Q7. Tell me about yourself and the projects you have done
  • Ans. 

    I am a software engineer with experience in developing web applications and mobile apps.

    • Developed a web application for a retail company using React and Node.js

    • Created a mobile app for a fitness startup using React Native

    • Worked on a project to automate data entry for a healthcare organization using Python

    • Contributed to an open-source project for a social media platform using Ruby on Rails

  • Answered by AI
  • Q8. What are your hobbies ?
  • Ans. 

    I enjoy reading, playing video games, and hiking.

    • Reading: I love to read books on various topics, including science fiction, history, and philosophy.

    • Video games: I enjoy playing games that challenge my problem-solving skills, such as puzzle games and strategy games.

    • Hiking: I like to explore new trails and enjoy the beauty of nature.

  • Answered by AI
  • Q9. Do you have any questions you want to ask me ?
  • Q10. How much do you about Qualcomm ?
  • Ans. 

    Qualcomm is a semiconductor and telecommunications equipment company based in San Diego, California.

    • Qualcomm is a leading provider of wireless technology and services.

    • They are known for their Snapdragon processors used in smartphones and other devices.

    • Qualcomm has been involved in several legal disputes with Apple and other companies over patent infringement.

    • They also have a strong presence in the development of 5G tec...

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: My overall experience was great. I felt very good inside the room . They offered me enough time and resources to answer the questions.
Tips: Be strong with basics and be confident.

Round: HR Interview
Experience: It was very pleasant . The HR was very friendly.
Tips: Just be confident.

Round: Test
Experience: I really enjoyed the test. But it would've been great if I were allowed to go back to previous section after I have finished the current one.
Tips: You need to be strong in basics and should have off the hat answering skills to pass this.
Duration: 90 minutes
Total Questions: Software

General Tips: Just be yourself
Skill Tips: Be thorough with code manipulations and data-structures
Skills: Math Puzzles, 12th Class Maths, Implementation Of Code Using OOPS, Object Oriented Programming (OOP) Basics, Java Programming, 1)communication, C
Duration: 2
College Name: IIT Madras
Motivation: I wanted to work in a software field that also has a good integration with hardware
Funny Moments: My friends had a really good chatter outside the office

Skills evaluated in this interview

Interview Preparation Tips

Round: Test
Experience: There was an online written test of 55 multiple choice questions in 70 minutes. This included:
20 questions of aptitude
15 questions of programming
25 questions of basic C++/operating systems
Duration: 70 minutes
Total Questions: 55

Round: Technical Interview
Experience: My interview was a technical interview. It had questions from my core branch which was electronics. The other topics which were discussed in the interview were:
OOPs concept
Operating System
Compiler
Bit related questions
There were also some other questions like puzzles and some pretty easy case studies which were based on logical reasoning and quantitative ability.

Round: HR Interview
Experience: There was a HR interview in which they asked me about myself, my family, my strengths and weaknesses and also why was I suitable for the company. According to me if you could have impressed them with your technical skills you would have won half the battle.

College Name: IIT BOMBAY

I was interviewed in Sep 2016.

Interview Questionnaire 

2 Questions

  • Q1. Explain about your project
  • Ans. 

    Developed a web application for online shopping with user authentication and payment gateway integration.

    • Implemented user authentication using JWT tokens

    • Integrated Stripe API for payment processing

    • Designed responsive UI using React and Bootstrap

  • Answered by AI
  • Q2. Explain insertion in binary search trees
  • Ans. 

    Insertion in binary search trees involves finding the appropriate position for a new node based on its value.

    • Start at the root node and compare the value of the new node with the current node.

    • If the new node's value is less than the current node, move to the left child node.

    • If the new node's value is greater than the current node, move to the right child node.

    • Repeat the comparison and movement until reaching a leaf nod...

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: The interviewer was mostly interested in the projects and my CPI which thankfully was not bad. One of my projects was a loose brush off of a patent he was developing so I got him to talk about the project and that took most of the time!
Tips: Be thorough about the projects mentioned in the CV.
Data structures and algorithms

College Name: IIT Varanasi

Skills evaluated in this interview

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Cerium Systems Interview FAQs

How many rounds are there in Cerium Systems VLSI Design and Verification Engineer interview?
Cerium Systems interview process usually has 2 rounds. The most common rounds in the Cerium Systems interview process are Resume Shortlist and Technical.
What are the top questions asked in Cerium Systems VLSI Design and Verification Engineer interview?

Some of the top questions asked at the Cerium Systems VLSI Design and Verification Engineer interview -

  1. How many combinations of inverter can be made using just 1 nand g...read more
  2. what is ring counter, Jhonson counter, Sync and Async Counte...read more
  3. Difference between Bocking and Non-Blocking in Veri...read more

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Cerium Systems VLSI Design and Verification Engineer Salary
based on 7 salaries
₹4.1 L/yr - ₹9 L/yr
15% less than the average VLSI Design and Verification Engineer Salary in India
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3.7/5

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3.4

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3.8

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3.8

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