Qualcomm Interview Questions, Process, and Tips

Q1. Technical interview questions
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Q2. Questions technical interview questions
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Q1. One on round questions
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Q2. Questiobs one on round
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Aptitude and technical questions were asked

Q1. Pattern question
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Q2. Doubly linked list insertion
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Q1. C++ linked lists
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Q2. Resume based, projects were asked.
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Q1. Bitwise questions easy to medium
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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
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Q1. Inter process communication theory
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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
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Q1. Linux Module development
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Q2. Dynamic 2d array multiplication
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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
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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 ...read more
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Q1. Give an example of a customer dispute in making payment
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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
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Q2. How do you support backward compatibility whiel designing a system
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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...read more
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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

Q1. Question were from vlsi and SOC design
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Q2. Then questions on optimizations in vlsi were asked.
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Q1. Family and background check
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Q2. Resume and projects
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First round-aptitute and technical questions from C,OS,DBMS

Q1. What are the types of caching mechanisms?
Ans. 
Types of caching mechanisms include browser caching, server-side caching, and content delivery network (CDN) caching.
• Browser caching: storing web page resources locally on a user's device to reduce load times on subsequent visits.

• Server-side caching: storing data in memory on the server to reduce the need to fetch data from the database repeatedly.

• Content Delivery Network (CDN) caching: caching content on servers distr...read more
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Q2. Explain the physical memory and virtual memory
Ans. 
Physical memory refers to the actual RAM installed in a computer, while virtual memory is a memory management technique that uses disk space as an extension of RAM.
• Physical memory is the actual hardware component where data is stored temporarily for quick access by the CPU.

• Virtual memory is a memory management technique that allows the operating system to use disk space as an extension of physical memory.

• Physical memor...read more
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