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Qualcomm Dsp Software Engineer Interview Questions and Answers

Updated 17 May 2021

Qualcomm Dsp Software Engineer Interview Experiences

1 interview found

I applied via Naukri.com and was interviewed before May 2020. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Fourier Transform, Audio signal basics, Frequency spectrum questions
  • Q2. C programming - Arrays, structures, strings, bit fields, scope-related queestions, bitwise operations
  • Q3. Code compilation on microcontrollers, Build process, debugging, etc
  • Ans. 

    Code compilation, build process, and debugging are essential for DSP software engineers working on microcontrollers.

    • Understanding the microcontroller architecture and instruction set is crucial for efficient code compilation.

    • The build process involves compiling the code, linking it with libraries, and generating a binary file that can be loaded onto the microcontroller.

    • Debugging tools such as JTAG, SWD, and UART are us...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared with your basics and skills on Resume

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview in Feb 2017.

Interview Questionnaire 

7 Questions

  • Q1. What is a malloc function and where is it used and how is it different from new?
  • Ans. 

    malloc is a function in C that dynamically allocates memory on the heap. It is used to allocate memory for variables or data structures.

    • malloc is used in C programming language.

    • It is used to allocate memory on the heap.

    • malloc is different from 'new' in C++ as it does not call constructors for objects.

  • Answered by AI
  • Q2. What is the difference between C++ and Objective C and where will you use it?
  • Ans. 

    C++ is a general-purpose programming language while Objective C is a superset of C used for iOS and macOS development.

    • C++ is widely used for developing applications, games, and system software.

    • Objective C is mainly used for iOS and macOS development.

    • C++ supports both procedural and object-oriented programming paradigms.

    • Objective C is an object-oriented language with dynamic runtime features.

    • C++ has a larger community a...

  • Answered by AI
  • Q3. What is the difference between class container and class composition?
  • Ans. 

    Class container is a class that holds objects of other classes, while class composition is a way to combine multiple classes to create a new class.

    • Class container holds objects of other classes, acting as a collection or container.

    • Class composition combines multiple classes to create a new class with its own behavior and attributes.

    • In class container, the objects are typically stored in a data structure like an array o...

  • Answered by AI
  • Q4. There are fifteen horses and a racing track that can run five horses at a time. You have to figure out the top 3 horses out of those and you don't have any timer machine to measure. How will you find the t...
  • Ans. 

    Divide the horses into groups of 5 and race them. Take the top 2 from each race and race them again. Finally, race the top 2 horses to determine the top 3.

    • Divide the horses into 3 groups of 5 and race them.

    • Take the top 2 horses from each race and race them again.

    • Finally, race the top 2 horses to determine the top 3.

  • Answered by AI
  • Q5. What is the most difficult problem that you have solved (during work) till now and why you think you could do so?
  • Ans. 

    Developing a real-time data processing system for a high-traffic e-commerce website

    • Implemented a distributed system architecture to handle large volumes of data

    • Optimized algorithms for efficient data processing and storage

    • Utilized caching mechanisms to improve system performance

    • Worked closely with cross-functional teams to troubleshoot and resolve issues

    • Example: Successfully reduced data processing time by 50% by imple

  • Answered by AI
  • Q6. Why you want to change your current job?
  • Ans. 

    Seeking new challenges and opportunities for growth.

    • Looking for a more challenging role to further develop my skills

    • Interested in exploring new technologies and industries

    • Seeking better career advancement opportunities

    • Want to work in a more collaborative team environment

  • Answered by AI
  • Q7. What is the width of a tree? How will you calculate the width of the tree?
  • Ans. 

    The width of a tree is the maximum number of nodes at any level in the tree.

    • To calculate the width of a tree, we can perform a level order traversal and keep track of the maximum number of nodes at any level.

    • We can use a queue data structure to perform the level order traversal.

    • At each level, we count the number of nodes in the queue and update the maximum width if necessary.

  • Answered by AI

Interview Preparation Tips

Skills: Basic C/C++, Implementing Data Structures In C++

Skills evaluated in this interview

Software Engineer Interview Questions & Answers

Intel user image ESHAN SHEKHAR cs15m018

posted on 2 Dec 2016

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

Interview Questionnaire 

2 Questions

  • Q1. Given a blackbox with arithmetic circuits , design the logical circuits
  • Ans. 

    Design logical circuits for arithmetic circuits in a blackbox.

    • Understand the functionality of the arithmetic circuits in the blackbox.

    • Identify the inputs and outputs of the blackbox.

    • Design logical circuits using logic gates to replicate the arithmetic operations.

    • Test the logical circuits to ensure they produce the same outputs as the arithmetic circuits.

  • Answered by AI
  • Q2. Embedded c-code for recursion
  • Ans. 

    Recursion in embedded C-code allows a function to call itself, useful for repetitive tasks or complex algorithms.

    • Ensure proper base case to avoid infinite recursion

    • Use stack space efficiently as embedded systems have limited resources

    • Avoid recursive functions with deep call stacks to prevent stack overflow

    • Example: Recursive function to calculate factorial of a number

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: During this round we had some technical questions and some digital logic questions.
Tips: Please be patient.Interviewers do stress testing. Don't panic even if you don't know any answers.
Duration: 2 hours
Total Questions: 1

Round: Technical Interview
Experience: He asked me questions regarding my project and some coding questions
Tips: Please be patient.Interviewers do stress testing. Don't panic even if you don't know any answers.

Round: Technical + HR Interview
Experience: He asked me questions regarding my project and some coding questions
Tips: Please be patient.Interviewers do stress testing. Don't panic even if you don't know any answers.

College Name: IIT Madras

Skills evaluated in this interview

Software Engineer Interview Questions & Answers

Intel user image Niranjhana Narayanan

posted on 2 Dec 2016

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

Interview Preparation Tips

Round: Test
Experience: Questions were based on C concepts, given piece of code, find error, output,etc then data structures, bit manipulation, a few aptitude questions were also there (around 5-7).
Duration: 1 hour
Total Questions: 30

Round: Technical + HR Interview
Experience: I was asked to explain project in detail, I had done projects on embedded, so was asked what fields did you use in that structure, why this implementation and not some related other. Then questions on C concepts, memory allocation, function pointers, data structures, linked lists, then bit manipulation in registers. Then later, why higher studies, would you still go for higher studies if you had a good job at a company, why etc.
Tips: Just be thorough with C (Know your Kernighan Ritchie) and be prepared to go into details about your projects.

College Name: IIT Madras

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

Interview Questionnaire 

2 Questions

  • Q1. Tell me about your self
  • Ans. 

    I am a passionate software engineer with experience in developing web applications using various technologies.

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

    • Proficient in backend development with Node.js and databases like MongoDB and MySQL

    • Familiar with version control systems like Git and project management tools like Jira

  • Answered by AI
  • Q2. Questions on gen data structures and basic electrical questions Regards software - Dsa,computer organization,computer networks

Interview Preparation Tips

Round: Test
Experience: I was gen basic analytics questions
Tips: No needforany serious preperation,just be yourself
Duration: 45 minutes
Total Questions: 25

Round: Technical + HR Interview
Experience: I got trough most of dsa and computer network questions but i was notso strong in digital part so i cupped
Tips: Just know the basics of all the areas you are interested in.

Round: HR Interview
Experience: This is the basic question expected i have gone through my family childhood experiences and hobies
Tips: Every person have a unique style of expressing themselves ,so prepare for these kind of questions,dont rise any interest in higher studies

College Name: IIT Madras

I applied via Campus Placement and was interviewed in Dec 2016. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Question on pointers and concepts based on Resume
  • Q2. Device Drivers, Linux, Firmware and some questions like "how will you handle some scenarios"
  • Q3. Why Intel, Introduce yourself
  • Ans. 

    I am passionate about technology and innovation, and I believe Intel is at the forefront of cutting-edge advancements in the field.

    • I have always been fascinated by the latest advancements in technology and Intel's reputation for innovation drew me to the company.

    • I admire Intel's commitment to pushing the boundaries of what is possible in the tech industry.

    • I am excited about the opportunity to work with a team of talent...

  • Answered by AI

Interview Preparation Tips

College Name: IIT Madras

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

Interview Questionnaire 

1 Question

  • Q1. OS concepts, C programme to convert big endian (int data type) to little endian(short data type)

Interview Preparation Tips

Round: Test
Duration: 1 hour
Total Questions: 25

College Name: IIT Madras

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

Interview Questionnaire 

2 Questions

  • Q1. About compilers and project
  • Q2. About myself and related to intereset in company

Interview Preparation Tips

College Name: IIT Madras

I applied via Campus Placement and was interviewed in Dec 2016. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. C, C++, Semaphores
  • Q2. Why Intel?
  • Ans. 

    Intel is a leading technology company known for innovation and cutting-edge products.

    • Intel is a pioneer in the semiconductor industry, known for its advanced technology and high-performance processors.

    • Intel has a strong reputation for innovation and research, constantly pushing the boundaries of technology.

    • Working at Intel provides opportunities to work on cutting-edge projects and collaborate with top talent in the in

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: Questions on project I am working on, languages I know etc.

Round: Technical + HR Interview
Experience: General questions were asked.

Skills: Technical Questions, Technical Questions
College Name: IIT Madras

I applied via Campus Placement and was interviewed in Dec 2016. There was 1 interview round.

Interview Questionnaire 

7 Questions

  • Q1. Phases of compiler
  • Ans. 

    Phases of compiler include lexical analysis, syntax analysis, semantic analysis, code generation, and optimization.

    • Lexical analysis: breaking down input into tokens

    • Syntax analysis: checking if tokens form valid syntax

    • Semantic analysis: checking if syntax is semantically correct

    • Code generation: generating machine code from input

    • Optimization: improving generated code performance

  • Answered by AI
  • Q2. Compiler optimisations
  • Q3. Why to c over cpp
  • Ans. 

    C is preferred over C++ for certain applications due to its simplicity and efficiency.

    • C is a simpler language compared to C++ and has a smaller runtime footprint.

    • C is often used for low-level programming, embedded systems, and operating systems.

    • C allows for more control over memory management and can be faster in certain scenarios.

    • C++ introduces additional features like object-oriented programming and templates, which

  • Answered by AI
  • Q4. Classes and structure and memory allocation for them
  • Ans. 

    Classes are blueprints for creating objects, while structures are similar but with different default access levels.

    • Classes and structures are used to define the structure and behavior of objects in object-oriented programming.

    • Classes are reference types and are allocated on the heap, while structures are value types and are allocated on the stack.

    • Memory allocation for classes is managed by garbage collection, while mem...

  • Answered by AI
  • Q5. My research area
  • Q6. My professional experience
  • Q7. Knowledge in cpp, c and debugging

Interview Preparation Tips

Round: Technical Interview
Experience: Asked about, basic cpp, c. compiler optimisations and phases, lex and yacc. why and how compiler optimisations help.
Tips: Its good.

Round: Technical Interview
Experience: How good am i in c, cpp. My research area.
Tips: Question where not clear to me. when asked how good are you in cpp, in debugging, in firmware I was not able to understand what the interviewer was looking for.

College Name: IIT Madras

Skills evaluated in this interview

Qualcomm Interview FAQs

How to prepare for Qualcomm Dsp Software Engineer 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 Qualcomm. The most common topics and skills that interviewers at Qualcomm expect are Control Valves, DSA, Fmea, LVS and Marine Operations.
What are the top questions asked in Qualcomm Dsp Software Engineer interview?

Some of the top questions asked at the Qualcomm Dsp Software Engineer interview -

  1. Code compilation on microcontrollers, Build process, debugging, ...read more
  2. C programming - Arrays, structures, strings, bit fields, scope-related queestio...read more
  3. Fourier Transform, Audio signal basics, Frequency spectrum questi...read more

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