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Qualcomm Interview Questions and Answers

Updated 27 Jun 2025
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259 Interview questions

An IT Program Manager was asked 2mo ago
Q. Are you hands-on with Python?
Ans. 

Yes, I am hands-on in Python, utilizing it for automation, data analysis, and developing applications.

  • Developed automation scripts using Python to streamline data processing tasks, reducing manual effort by 30%.

  • Utilized Python libraries like Pandas and NumPy for data analysis, enabling better decision-making through insights.

  • Created RESTful APIs with Flask to support application integration, enhancing system inter...

View all IT Program Manager interview questions
A Vlsi Design Engineer was asked 2mo ago
Q. What does VLSI stand for?
Ans. 

VLSI stands for Very Large Scale Integration, a technology used to create integrated circuits by combining thousands of transistors.

  • VLSI technology allows for the integration of millions of transistors on a single chip.

  • Common applications include microprocessors, memory chips, and digital signal processors.

  • Examples of VLSI devices are CPUs like Intel's Core series and GPUs like NVIDIA's GeForce series.

  • VLSI design ...

View all Vlsi Design Engineer interview questions
A RF Engineer was asked 3mo ago
Q. Given a circle with radius r, find the area of an equilateral triangle inscribed in the circle.
Ans. 

The area of an equilateral triangle inscribed in a circle can be calculated using the circle's radius.

  • The formula for the area of an equilateral triangle is (sqrt(3)/4) * a^2, where 'a' is the side length.

  • For a triangle inscribed in a circle, the side length 'a' can be expressed as a = r * sqrt(3).

  • Substituting 'a' into the area formula gives Area = (sqrt(3)/4) * (r * sqrt(3))^2 = (3 * r^2) / 4.

  • Example: If r = 2, t...

View all RF Engineer interview questions
A RF Engineer was asked 3mo ago
Q. Given an array of integers, return the array with increasing order and distinct elements.
Ans. 

Sort an array of integers, removing duplicates to return distinct elements in increasing order.

  • Use a set to eliminate duplicates: e.g., [3, 1, 2, 2] becomes {1, 2, 3}.

  • Convert the set back to a list and sort it: e.g., sorted([1, 2, 3]) results in [1, 2, 3].

  • Return the sorted list as the final output.

View all RF Engineer interview questions
A RF Engineer was asked 3mo ago
Q. Given a hexadecimal string, swap the first two digits with the next two digits.
Ans. 

Swap the first two digits of a hexadecimal string with the next two digits.

  • Identify the first four characters of the string.

  • Swap the first two characters with the next two characters.

  • Example: '1A2B3C' becomes '2B1A3C'.

  • If the string has less than four characters, no swap occurs.

View all RF Engineer interview questions
A Software Engineer was asked 3mo ago
Q. Given k sorted arrays, merge them into one sorted array.
Ans. 

Merge multiple sorted arrays into a single sorted array efficiently.

  • Use a min-heap to keep track of the smallest elements from each array.

  • Extract the smallest element from the heap and add it to the result array.

  • Insert the next element from the array of the extracted element into the heap.

  • Repeat until all elements from all arrays are merged.

  • Example: Merging [1, 4, 5], [1, 3, 4], [2, 6] results in [1, 1, 2, 3, 4, 4...

View all Software Engineer interview questions
A HR Executive was asked 3mo ago
Q. Why should we choose you?
Ans. 

I bring a unique blend of skills, experience, and passion that aligns perfectly with your organization's goals and values.

  • Proven track record: In my previous role, I increased team productivity by 20% through effective project management.

  • Strong communication skills: I successfully led cross-functional teams, ensuring clarity and collaboration across departments.

  • Adaptability: I thrive in fast-paced environments, qu...

View all HR Executive interview questions
Are these interview questions helpful?
A HR Executive was asked 3mo ago
Q. Describe yourself.
Ans. 

I am a dedicated professional with a passion for continuous learning and a strong commitment to teamwork and innovation.

  • Strong communication skills: I effectively convey ideas and collaborate with diverse teams, as demonstrated in my previous role leading cross-functional projects.

  • Adaptable and resilient: I thrive in fast-paced environments, having successfully navigated organizational changes while maintaining pr...

View all HR Executive interview questions
A Senior Staff Engineer was asked 5mo ago
Q. Explain thermal throttling.
Ans. 

Thermal throttling is a mechanism used to prevent a device from overheating by reducing its performance.

  • Thermal throttling is a technique used in electronic devices to prevent overheating.

  • When a device reaches a certain temperature threshold, it will reduce its performance to lower the heat generation.

  • This can result in slower processing speeds or decreased battery life, but it protects the device from damage.

  • Comm...

View all Senior Staff Engineer interview questions
A Senior Staff Engineer was asked 5mo ago
Q. Design a dictionary.
Ans. 

Design a dictionary that efficiently stores and retrieves key-value pairs with various functionalities.

  • Use a hash table for O(1) average time complexity for lookups. Example: {'apple': 'a fruit', 'car': 'a vehicle'}

  • Implement collision resolution strategies like chaining or open addressing.

  • Support dynamic resizing to handle varying loads efficiently.

  • Include methods for adding, removing, and updating entries.

  • Conside...

View all Senior Staff Engineer interview questions

Qualcomm Interview Experiences

271 interviews found

Software Developer Interview Questions & Answers

user image Kavya Mrudula

posted on 17 Sep 2016

I applied via Campus Placement

Interview Questionnaire 

4 Questions

  • Q1. What is a program, task and threads
  • Ans. 

    A program is a set of instructions that tells a computer what to do. A task is a unit of work performed by a program. A thread is a sequence of instructions within a task.

    • A program is a collection of instructions that are executed by a computer to perform a specific task.

    • A task is a unit of work that is performed by a program. It can be a specific action or a set of actions.

    • A thread is a sequence of instructions within...

  • Answered by AI
  • Q2. Delete a node in a linked list
  • Ans. 

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

    • Find the node to be deleted by traversing the linked list

    • Adjust the pointers of the previous and next nodes to skip the node to be deleted

    • Free the memory occupied by the node to be deleted

  • Answered by AI
  • Q3. What is a function pointer and volatile type in c
  • Ans. 

    A function pointer is a variable that stores the address of a function. Volatile type is used to declare variables that can be modified by external factors.

    • Function pointers are used to pass functions as arguments to other functions.

    • Volatile type is used when a variable's value can be changed unexpectedly by external factors.

    • Function pointers can be used to implement callbacks or event handling mechanisms.

    • Volatile type...

  • Answered by AI
  • Q4. Summarise your resume
  • Ans. 

    Experienced software developer with expertise in Java, Python, and SQL

    • Proficient in Java, Python, and SQL programming languages

    • Developed web applications using Java Spring framework

    • Experience with database management and optimization using SQL

    • Worked on various software projects in a team environment

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Paper was challenging and It was well set.

Duration: 90 minutes
Total Questions: 60

Round: Technical Interview
Experience: It was a very good experience overall. Interviewer helped to ease the tension.
Tips: Waiting time can be reduced.

General Tips: Prepare for precedence of operators in C.
Try to be fast in solving the problems.
Skills: Knowledge Of Your Resume Points, Pointers In C, Operating System Basics
Duration: 2
College Name: IIT Madras
Motivation: Qualcomm is a

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Dec 2024, where I was asked the following questions.

  • Q1. What are the different Wi-Fi generations and their characteristics?
  • Ans. 

    Wi-Fi generations, from 802.11b to Wi-Fi 6E, have evolved in speed, range, and efficiency, enhancing wireless connectivity.

    • 802.11b (1999): Up to 11 Mbps, 2.4 GHz, good range but limited speed.

    • 802.11g (2003): Up to 54 Mbps, 2.4 GHz, backward compatible with 802.11b.

    • 802.11n (2009): Up to 600 Mbps, operates on 2.4 GHz and 5 GHz, MIMO technology for better performance.

    • 802.11ac (2013): Up to 3.5 Gbps, primarily 5 GHz, impro...

  • Answered by AI
  • Q2. Your Idea on RF testing & some basic electronic questions
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
No response

I appeared for an interview in Dec 2024.

Round 1 - One-on-one 

(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

  • Answered by AI
  • 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...

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. It was little technical with the Excel and Power Bi
Interview experience
4
Good
Difficulty level
Hard
Process Duration
-
Result
No response

I appeared for an interview in Dec 2024.

Round 1 - One-on-one 

(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...

  • Answered by AI
  • Q3. Git, merge abd rebase cherry-pick etc

Interview Preparation Tips

Interview preparation tips for other job seekers - overall interview was good
i was interviewed for devops roles
Interview experience
4
Good
Difficulty level
Hard
Process Duration
-
Result
-
Round 1 - One-on-one 

(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...

  • Answered by AI
  • 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...

  • Answered by AI
Round 2 - One-on-one 

(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...

  • Answered by AI
  • 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...

  • Answered by AI
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
More than 8 weeks
Result
No response

I appeared for an interview in Sep 2024.

Round 1 - Technical 

(1 Question)

  • Q1. Project experience, admin questions, scenario based questions in admin, apex and in general tech questions Tableau, excel etc
Round 2 - Technical 

(1 Question)

  • Q1. Overall project experience and cross questioning on my candidature
Round 3 - Technical 

(1 Question)

  • Q1. Integration with Salesforce questions
Round 4 - Technical 

(1 Question)

  • Q1. Reports and dashboards, sprint management questions
Round 5 - Technical 

(1 Question)

  • Q1. Apex and Salesforce admin questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't expect much from them, the organization's hiring process itself is ridiculous.
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Technical interview questions
  • Q2. Questions technical interview questions
Round 2 - One-on-one 

(2 Questions)

  • Q1. One on round questions
  • Q2. Questiobs one on round

Interview Preparation Tips

Interview preparation tips for other job seekers - seek job
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Oct 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Aptitude and technical questions were asked

Round 2 - Technical 

(2 Questions)

  • Q1. Pattern question
  • Q2. Doubly linked list insertion
Round 3 - Behavioral 

(2 Questions)

  • Q1. C++ linked lists
  • Q2. Resume based, projects were asked.

Engineer Interview Questions & Answers

user image Anonymous

posted on 13 Aug 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - Technical 

(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

  • Answered by AI
Round 2 - Technical 

(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

  • Answered by AI
Round 3 - Technical 

(4 Questions)

  • Q1. Linux Module development
  • Q2. Dynamic 2d array multiplication
  • Ans. 

    Dynamic 2D array multiplication involves multiplying two matrices of varying sizes using dynamic memory allocation.

    • Define two 2D arrays (matrices) dynamically using pointers.

    • Ensure the number of columns in the first matrix equals the number of rows in the second.

    • Allocate memory for the result matrix based on the dimensions of the input matrices.

    • Use nested loops to perform the multiplication: for each element in the res...

  • Answered by AI
  • 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

  • Answered by AI
  • 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 ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prep OS.
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

Accountant Interview Questions & Answers

user image Anonymous

posted on 4 Dec 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-

I applied via Company Website

Round 1 - One-on-one 

(1 Question)

  • Q1. Give an example of a customer dispute in making payment
  • Ans. 

    A customer disputed a payment due to incorrect billing for services rendered, leading to a resolution process.

    • Customer received an invoice for $1,000 but only expected to pay $800 based on prior agreement.

    • Dispute arose when the customer claimed they were charged for services not rendered.

    • Communication breakdown occurred; the customer felt their concerns were not addressed promptly.

    • Resolution involved reviewing service ...

  • Answered by AI
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(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

  • Answered by AI
  • 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...

  • Answered by AI

Skills evaluated in this interview

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Interview Tips & Stories
1w
toobluntforu
·
works at
Cvent
Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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Qualcomm Interview FAQs

How many rounds are there in Qualcomm interview?
Qualcomm interview process usually has 2-3 rounds. The most common rounds in the Qualcomm interview process are Technical, One-on-one Round and Coding Test.
How to prepare for Qualcomm 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 Python, C++, Staffing, Computer science and Debugging.
What are the top questions asked in Qualcomm interview?

Some of the top questions asked at the Qualcomm interview -

  1. Bridge and torch problem : Four people come to a river in the night. There is a...read more
  2. Given an array A[n], write a C program to find P and Q (P>Q) such that A[P] - A...read more
  3. What is scheduling? List different types of schedul...read more
What are the most common questions asked in Qualcomm HR round?

The most common HR questions asked in Qualcomm interview are -

  1. Why are you looking for a chan...read more
  2. What is your family backgrou...read more
  3. What are your strengths and weakness...read more
How long is the Qualcomm interview process?

The duration of Qualcomm interview process can vary, but typically it takes about less than 2 weeks to complete.

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Overall Interview Experience Rating

4.1/5

based on 191 interview experiences

Difficulty level

Easy 14%
Moderate 74%
Hard 12%

Duration

Less than 2 weeks 62%
2-4 weeks 26%
4-6 weeks 7%
6-8 weeks 2%
More than 8 weeks 3%
View more

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Qualcomm Reviews and Ratings

based on 1.1k reviews

3.8/5

Rating in categories

3.5

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3.4

Work-life balance

4.0

Salary

3.6

Job security

3.5

Company culture

3.3

Promotions

3.4

Work satisfaction

Explore 1.1k Reviews and Ratings
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