|Que.||In UNIX, which of the following command is used to set the task priority ?|
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“The pipe sorts all files in the current directory modified in the month of “June” by order of size and prints them to the terminal screen. The sort option skips ten fields then sorts the lines in numeric order.”
Which of the following Unix command will perform above set of operations?
List - I List - II
(a) Boot block (i) Information about file system
(b) Super block (ii) Information about file
(c) Inode table (iii) Storage space
(d) Data block (iv) Code for making OS ready
(a) (b) (c) (d)
I. The process table is resident all the time and contain information needed for all processes, even those that are not currently in memory.
II. The user structure is swapped or paged out when its associated process is not in memory, in order not to waste memory on information that is not needed.
Which of the following options is correct with reference to above statements ?
(a) UNIX provides three types of permissions
(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?
I. It is used to set or change the priority of a process.
II. A process’s nice value can be set at the time of creation.
III. ‘nice’ takes a command line as an argument.
List – I List – II
(a) exec (i) Creates a new process
(b) brk (ii) Invokes another program overlaying memory space with a copy of an executable file
(c) wait (iii) To increase or decrease the size of data region
(d) fork (iv) A process synchronizes with termination of child process
a b c d
I. A mode of 641 (octal) means that the owner can read and write the file, other members of the owner’s group can read it, and users can execute only.
II. A mode of 100 (octal) allows the owner to execute the file, but prohibits all other access.
Which of the following options is correct with reference to above statements?