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OS interview questions
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1 How can a parent and child process communicate? 81
2 How can you get/set an environment variable from a program? 76
3 List the system calls used for process management: 77
4 Predict the output of the following program code main() { fork(); fork(); fork(); printf("Hello World!"); } 73
5 Predict the output of the following program code main() { fork(); printf("Hello World!"); } 76
6 Explain fork() system call. 86
7 What are various IDs associated with a process? 76
8 Brief about the initial process sequence while the system boots up. 90
9 What is a shell? 82
10 How does the inode map to data block of a file? 69
 
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