Qualcomm Python Developer interview questions

# 1st Round - 1:30 Hour *Operating System* 1. Deadlock in OS 2. Semaphores explain, features 3. Mutex vs Semaphore 4. Explain Kernel functions in OS 5. How many types of signals are in OS, signal Handling 6. Diff b/w process and thread *Concepts in C programming* 7. Compilation stages in C 8. Storage classes in C *OOPs concepts* 9. Explain OOPs with example(class, object, Polymorphism, Encapsulation, Inheritance Data Abstraction) 10. Explain briefly about Encapsulation and Abstraction *Python Coding Round* 11. Sum of two numbers using memorising function in python 12. Toggle nth bit of a number 13. Break a list into chunks of Nth size ===================== # 2nd Round - 1 Hour ===================== *Python Coding Round* 14. Shift last two elements to first position in list python. *Example : input = [1, 2, - 6, 8] output = [-6, 8, 1, 2]* 15. Time complexity explain 16. Remove all special characters, space, use lower / upper case and check palindrome of a given string. *Example : string = "Was it a Car or a cat I saw ?"* 17. Merge two sorted linked lists in python [DSA] # 3nd Round - 1 Hour [Technical + Managerial] 18. Explain project *Python Coding Round* 19. Read your resume file and search for a particular pattern and tell how many times, print complete lines containing. *Operating System* 20. Explain Interrupt in OS with example