4. Including the initial parent process, how many processes are created by the program below: #include #include int main() /* fork a child process */ fork(); /* fork another child process */ fork(); /* and fork another */ fork(); return 0; 5. Describe the actions taken by a kernel to context-switch between processes. 6. Provide three programming examples in which multithreading provides better performance than a single-threaded solution. 7. Which of the following components of program state are shared across threads in a multi threaded process? 1. Register values 2. Heap memory 3. Global variables 4. Stack memory