Qualcomm Embedded Software Developer Interview Questions and Answers

Q1. Find the maximum length of the string without counting the duplicated characters Many questions on os, coa, registers and assembly language.
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Q2. Project related questions. It was a resume based shortlisting.
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Q1. Questions on projects and coding.
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Q2. Simple mathematical coding question. Given constraints: solve in best time complexity
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20 questions on aptitude and english and puzzles.
20 questions on Analog electronics.
20 questions on digital electronics.
Total duration was 90 minutes.

Q1. Tell me about yourself. Your college and study background. Project Discussion(Very deep)
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Q1. Define steps of booting a system
Ans. 
Booting a system involves several steps including power-on, POST, bootloader loading, kernel initialization, and user space initialization.
• Power-on: System receives power and starts the boot process.

• POST (Power-On Self Test): Hardware components are checked for functionality.

• Bootloader loading: Bootloader is loaded into memory and executed.

• Kernel initialization: Operating system kernel is loaded and initialized.

• User sp...read more
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Q2. What are the detailed steps and intermediate state in a compilation
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Compilation involves multiple steps like preprocessing, compilation, assembly, and linking.
• Preprocessing: Includes header file inclusion, macro expansion, and conditional compilation.

• Compilation: Translates source code into assembly code specific to the target architecture.

• Assembly: Converts assembly code into machine code.

• Linking: Combines object files and libraries to generate an executable file.
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Q1. LLD question on designing a cache
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40 aptitude qns and some mcqs on basic programming

Q1. I was asked to write two sum, palindrome function and merge sort code in whatever language I'm comfortable in
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Q2. Two sum- return true or false
Ans. 
Given an array of integers, determine if there are two numbers that add up to a specific target.
• Iterate through the array and store each element in a hash set.

• For each element, check if the difference between the target and the element exists in the hash set.

• If the difference exists, return true; otherwise, continue iterating.

• Example: nums = [2, 7, 11, 15], target = 9. The function should return true as 2 + 7 = 9.
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Q3. Merge sort function code
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Q4. Palindromic string or not
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Basic programs on c and linux

Q1. All basics from c embedded c Linux mpmc
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