RTOS interview questions & questions asked in todays interview

Interview questions
1. What are different types of dead lock prevention algorithm's?
2. What is the difference b/w semaphore and mutual exclusion?
3. What is the difference b/w calloc and malloc?
4. when is union used ?
5. Write a sample program to find the size of structure with out using sizeof operator?
6. Write the syntax for function pointer?
7. What is the size of structure containing the an integer and character?
8. If suppose a union contains a double and integer character can we use the integer element and character element at the same time?

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