Real Interview Questions

Qualcomm Interview Questions (Real, Asked)

9 real questions candidates were actually asked at Qualcomm interviews. Practice any of them out loud with Roundd AI and get instant feedback — free, no signup.

1. 1.

   Write a C program to get the size of a variable without using the sizeof() function.

   Software Engineer

2. 2.

   How do you divide a number by 4 without using the division operator?

   Software Engineer

3. 3.

   Implement merge sort.

   Software Engineer

4. 4.

   What is mutex? What is a spin lock? What is a critical section?

   Software Engineer

5. 5.

   Toggle the even bits of a number.

   Software Engineer

6. 6.

   How do you detect a loop in a linked list?

   Software Engineer

7. 7.

   A function is passed a void pointer, myfunc(void *p). Determine whether the memory address pointed to by p is on the stack or the heap.

   Software Engineer

8. 8.

   Implement memcpy() without using a temporary array.

   Software Engineer

9. 9.

   Find the count of palindromic substrings in a string.

   Software Engineer