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Qualcomm Interview Questions, Process, and Tips
Top Qualcomm Interview Questions and Answers
- Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because ...read moreasked in Software Engineer interview
- Q2. What is Min-Cut placement algorithm? Given some block sizes, use the algorithm to place them on a given chip areaasked in Engineer interview
- Q3. Function to write data to some memory location which can dynamically allocate memory and return the address details where data is present .asked in Senior Engineer interview
Qualcomm Interview Experiences
255 interviews found
Aashrith Vennelakanti
I was interviewed in Sep 2017.
Interview Questionnaire
8 Questions
- Q1. How do you implement the overlap-add method of convolution?
- Ans.
Overlap-add method of convolution is implemented by dividing the input signal into overlapping segments and convolving each segment with a filter.
Divide the input signal into overlapping segments
Apply the filter to each segment
Add the convolved segments together to get the output signal
The length of each segment should be greater than or equal to the length of the filter
The overlap between adjacent segments should be g...
- Q2. Obtain the Nyquist criterion.
- Ans.
The Nyquist criterion states that in order to accurately sample a signal, the sampling rate must be at least twice the highest frequency component of the signal.
The Nyquist criterion is used in digital signal processing and communication systems.
It ensures that the original signal can be accurately reconstructed from its samples.
The sampling rate should be at least twice the bandwidth of the signal to avoid aliasing.
Fo...
- Q3. Obtain the Nyquist sampling frequency for an unevenly distributed band-limited signal.
- Ans.
Nyquist sampling frequency for unevenly distributed band-limited signal.
Determine the highest frequency component in the signal
Use Nyquist theorem to calculate the minimum sampling frequency
Sampling frequency should be at least twice the highest frequency component
- Q4. How do you implement interpolation in discrete-time domain?
- Ans.
Interpolation in discrete-time domain involves estimating values between known data points.
Interpolation is used to fill in missing data or estimate values between known data points.
Common interpolation techniques include linear interpolation, polynomial interpolation, and spline interpolation.
Linear interpolation calculates values along a straight line between two known data points.
Polynomial interpolation uses a poly...
- Q5. How do you obtain the in-phase and quadrature components of a real pass-band signal?
- Ans.
The in-phase and quadrature components of a real pass-band signal can be obtained using a complex mixer.
A complex mixer is used to convert the real pass-band signal to a complex baseband signal.
The in-phase component is obtained by multiplying the pass-band signal with a local oscillator signal in-phase with the carrier frequency.
The quadrature component is obtained by multiplying the pass-band signal with a local osci...
- 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, in a line?
- Ans.
The number of ways to arrange sets of coloured balls in a line.
The number of ways to arrange the red balls is the factorial of the number of red balls.
The number of ways to arrange the blue balls is the factorial of the number of blue balls.
The number of ways to arrange the green balls is the factorial of the number of green balls.
To find the total number of arrangements, multiply the number of arrangements for each se
- Q7. How do you obtain the bit-rate for quantization of a band-limited signal?
- Ans.
The bit-rate for quantization of a band-limited signal can be obtained by considering the Nyquist-Shannon sampling theorem.
The Nyquist-Shannon sampling theorem states that in order to accurately represent a band-limited signal, the sampling rate must be at least twice the highest frequency component of the signal.
The bit-rate for quantization is determined by the number of bits used to represent each sample. It is typi...
- Q8. If you were offered an intern in Communications in Hyderabad, would you take it?
- Ans.
Yes, I would take the intern in Communications in Hyderabad.
Taking the intern in Communications in Hyderabad would provide me with valuable experience in a different field.
It would allow me to expand my skill set and network in a new location.
Internships are great opportunities for learning and growth, regardless of the specific field.
Interview Preparation Tips
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
Top Qualcomm Hardware Engineer Interview Questions and Answers
Hardware Engineer Interview Questions asked at other Companies
Anonymous
I was interviewed in Dec 2024.
(2 Questions)
- Q1. What can you share about your experience?
- Ans.
I have over 5 years of experience as a Business Analyst in the finance industry.
Led cross-functional teams to analyze market trends and develop strategic plans
Performed data analysis to identify opportunities for cost reduction and revenue growth
Collaborated with stakeholders to gather requirements and create detailed business requirements documents
- Q2. What are the specific responsibilities associated with the role, and how does the workflow typically function?
- Ans.
Business Analyst responsibilities include analyzing data, identifying trends, and making recommendations to improve business processes.
Gather and analyze data to identify trends and make recommendations
Work closely with stakeholders to understand business needs and requirements
Create reports and presentations to communicate findings and recommendations
Collaborate with cross-functional teams to implement solutions
Monito
(1 Question)
- Q1. It was little technical with the Excel and Power Bi
Business Analyst Interview Questions asked at other Companies
yogesh sindam
I was interviewed in Dec 2024.
(3 Questions)
- Q1. Mostly related to docker networking concept.
- Q2. How linux boot process work?
- Ans.
Linux boot process involves several stages including BIOS, bootloader, kernel initialization, and user space initialization.
BIOS (Basic Input/Output System) performs hardware initialization and loads bootloader
Bootloader (GRUB, LILO) loads the Linux kernel into memory and starts it
Kernel initializes devices, mounts the root filesystem, and starts the init process
Init process (systemd, SysVinit) starts user space proces
- Q3. Git, merge abd rebase cherry-pick etc
Interview Preparation Tips
i was interviewed for devops roles
Senior Devops Engineer Interview Questions asked at other Companies
(2 Questions)
- Q1. What is Planning?
- Ans.
Planning is the process of setting goals, determining actions to achieve those goals, and allocating resources effectively.
Setting specific, measurable, achievable, relevant, and time-bound (SMART) goals
Creating a detailed plan of action to achieve the goals
Allocating resources such as time, money, and manpower efficiently
Monitoring progress and making adjustments as needed
Examples: Financial planning for a company's b...
- Q2. What to build financial model?
- Ans.
A financial model is built to forecast future financial performance of a company or project.
Identify the purpose of the financial model (e.g. budgeting, valuation, forecasting)
Gather historical financial data and relevant assumptions
Create income statement, balance sheet, and cash flow statement projections
Perform sensitivity analysis to assess the impact of different variables
Validate the model by comparing actual res
(2 Questions)
- Q1. What is depreciation?
- Ans.
Depreciation is the allocation of the cost of a tangible asset over its useful life.
Depreciation is a non-cash expense that reduces the value of an asset over time.
It reflects the wear and tear, obsolescence, or decrease in value of an asset.
Common methods of calculating depreciation include straight-line, double declining balance, and units of production.
Example: A company purchases a machine for $10,000 with a useful...
- Q2. What is the concept of budgeting?
- Ans.
Budgeting is the process of creating a plan to manage income and expenses over a specific period of time.
Budgeting involves setting financial goals and creating a detailed plan to achieve them.
It helps in tracking income, expenses, and savings to ensure financial stability.
Budgeting can be done on a personal level, for businesses, or for specific projects.
Examples of budgeting tools include spreadsheets, budgeting apps
Financial Analyst Interview Questions asked at other Companies
Qualcomm interview questions for popular designations
I was interviewed in Sep 2024.
(1 Question)
- Q1. Project experience, admin questions, scenario based questions in admin, apex and in general tech questions Tableau, excel etc
(1 Question)
- Q1. Overall project experience and cross questioning on my candidature
(1 Question)
- Q1. Integration with Salesforce questions
(1 Question)
- Q1. Reports and dashboards, sprint management questions
(1 Question)
- Q1. Apex and Salesforce admin questions
Interview Preparation Tips
Project Analyst Interview Questions asked at other Companies
Get interview-ready with Top Qualcomm Interview Questions
(2 Questions)
- Q1. Technical interview questions
- Q2. Questions technical interview questions
(2 Questions)
- Q1. One on round questions
- Q2. Questiobs one on round
Interview Preparation Tips
PCB Design Engineer Interview Questions asked at other Companies
Jobs at Qualcomm
I applied via Approached by Company and was interviewed in Oct 2024. There were 3 interview rounds.
Aptitude and technical questions were asked
(2 Questions)
- Q1. Pattern question
- Q2. Doubly linked list insertion
(2 Questions)
- Q1. C++ linked lists
- Q2. Resume based, projects were asked.
Top Qualcomm Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
Selected
(2 Questions)
- Q1. Bitwise questions easy to medium
- Q2. Merge two sorter linked list
- Ans.
Merge two sorted linked lists into a single sorted linked list
Create a new linked list to store the merged result
Iterate through both input linked lists and compare nodes to determine the order in which they should be merged
Update the next pointers of the nodes in the new linked list accordingly
(2 Questions)
- Q1. Inter process communication theory
- Q2. Reverse words in String
- Ans.
Reverse words in a given string
Split the string into words using a space as delimiter
Reverse each word individually
Join the reversed words back together with a space in between
(4 Questions)
- Q1. Linux Module development
- Q2. Dynamic 2d array multiplication
- Q3. Why this role ?
- Ans.
I am passionate about solving complex engineering problems and contributing to innovative projects.
I have always been fascinated by the intersection of technology and creativity
I thrive in fast-paced environments where I can apply my technical skills
I am excited about the opportunity to work with a talented team and make a real impact
- Q4. Why linux kernel ? And About how to compile linux kernel?
- Ans.
Linux kernel is popular for its open-source nature, stability, security, and flexibility. Compiling it allows customization and optimization.
Linux kernel is widely used due to its open-source nature, allowing for customization and collaboration.
It is known for its stability, security, and flexibility, making it a preferred choice for many developers and organizations.
Compiling the Linux kernel involves configuring the ...
Interview Preparation Tips
Prep Embedded Linux.
Prep Bitwise and Linked list Problems. (easy to medium)
Prep Array and String w.r.t to dynamic memory allocation.
Prep Pointer Arithmetic.
Skills evaluated in this interview
Top Qualcomm Engineer Interview Questions and Answers
Engineer Interview Questions asked at other Companies
I applied via Company Website
(1 Question)
- Q1. Give an example of a customer dispute in making payment
Accountant Interview Questions asked at other Companies
Ravinder Kumar
(2 Questions)
- Q1. Invert bits of a number
- Ans.
Invert the bits of a given number
Use bitwise XOR operator (^) with 1 to flip each bit
Repeat the process for all bits in the number
Return the inverted number
- Q2. How do you support backward compatibility whiel designing a system
- Ans.
Backward compatibility can be supported by using versioning, deprecation strategies, and maintaining clear communication with users.
Use versioning to clearly distinguish between different versions of the system
Implement deprecation strategies to phase out old features gradually
Maintain clear communication with users about upcoming changes and provide migration paths
Consider using compatibility layers or adapters to bri...
Skills evaluated in this interview
Senior Software Engineer Interview Questions asked at other Companies
I applied via Campus Placement and was interviewed in Jul 2024. There were 3 interview rounds.
It consisted of aptitude questions, then OS C 1mrks, which were re GATE questions. No coding, I chose hardware role, so questions were from digital electronics too. prepare the gate questions for these subjects
(2 Questions)
- Q1. Question were from vlsi and SOC design
- Q2. Then questions on optimizations in vlsi were asked.
(2 Questions)
- Q1. Family and background check
- Q2. Resume and projects
Interview Preparation Tips
Top Qualcomm Hardware Engineer Interview Questions and Answers
Hardware Engineer Interview Questions asked at other Companies
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Qualcomm Interview FAQs
Some of the top questions asked at the Qualcomm interview -
The duration of Qualcomm interview process can vary, but typically it takes about less than 2 weeks to complete.
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