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Operating System Architecture Practice Test
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The architecture of an operating system is basically the design of its software and hardware components. The core software components of an operating system are collectively known as the kernel.  For example, The architecture of the Linux operating system consists of the Kernel, system library, system, hardware layer, and shell utility. 

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Operating System Architecture Practice Test
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25 Questions

1. Which of the following umask settings allow execute permission to be set by default on regular files
2. Which of the following is true of all Perl scripts ?
3. read() system call on success returns
4. Choose the correct statements.
5. The main difference between application and system software is that ………
6. Which command is used to locate all the .profile files in the system?
7. Syntax to suppress the display of command error to monitor?
8. GRUB stands for ………
9. Which is an example for character special file?
10. What are the files attributes for executing perl programs ?
11. Create a new file “new.txt” that is a concatenation of “file1.txt” and “file2.txt”
12. The octal representation 652 indicates
13. Which of the following commands is used to summarize the disk usage?
14. To use a Unix system with a GUI you need this type of window to enter Unix commands
15. Comments in a shell program are important because
16. LILO can also be used to boot other operating systems as well such as ……..
17. Which of the following keys is used to replace a single character with new text?
18. Which function can be used instead of the dup2 to duplicate the file descriptor?
19. Another term for shell programs is
20. Choose the correct statements.
21. The permission -rwxr–r– represented in octal expression will be
22. the different permissions associated with files are
23. Which of the following signs is used to back up over typing errors in vi?
24. If cat x ,prints garbage ,then x is probably a
25. Short lived files created during execution are stored in

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