Q. Which of the following changes permission to deny write permission to group and others?

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Q. Which of the following OS treats hardware as a file system?

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Q. An example of a memory management system call in UNIX is:

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Q. An example of a directory found in most UNIX system is:

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Q. The “nice” command is used in Unix:

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Q. Which of the following is not an Unix Command ?

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Q. A system call in Linux operating system to create a new child process, which is a copy of the parent process:

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Q. The environment variable in Linux, that contain a list of directories the shell automatically recognizes.

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Q. In Linux, the subdirectory that contains system configuration files including user passwords:

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Q. Linux partitions are created using the file system:

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Q. Which UNIX/Linux command is used to make all files and sub-directories in the directory “progs” executable by all users?

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Q. Consider the following statements :

(a) UNIX provides three types of permissions
* Read
* Write
* Execute
(b) UNIX provides three sets of permissions
* permission for owner
* permission for group
* permission for others

Which of the above statement/s is/are true?

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Q. Match the following WINDOWS system calls and UNIX system calls with reference to process control and File manipulation.

Windows
(a) Create - process ()
(b) WaitForSingleObject ()
(c) CreateFile ()
(d) CloseHandle ()

UNIX
(i) Open ()
(ii) Close ()
(iii) Fork ()
(iv) Wait ()

Code :
(a) (b) (c) (d)

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