UGC-NET/GATE Multiple Choice Questions for Operating System.
Command set which is correct according to its function is
RD and MD
DEL and ERASE
CD and RD
COPY and RENAME
A process that is based on IPC mechanism which executes on different systems and can communicate with other processes using message based communication, is called.....
Local Procedure Call
Inter Process Communication
Remote Procedure Call
Remote Machine Invocation
With the use of multiprogramming batch processing work can be
What is meaning of right-set?
It is a subset consist of read and write
It is a subset of all valid operations that can be performed on the object
It is a subset consist of read, write and execute
None of the mentioned
A useful tool in characterizing and allocating of resources to process is the
User Allocation Graph
Time Allocation Graph
Resource Allocation Graph
Location Allocation Graph
Which of the following is default mode for Windows to start?
None of above
What script is run for setting bash global defaults for all users?
Device controller is the controller of the computer system that contains
both A and B
For improving performance of the computer system memory used is
Network between computers and terminal is considered as requirement of
set of software
An interrupt occurs when the timer count reaches to
A Computer system implements 8 kilobyte pages and a 32-bit physical address space. Each page table entry contains a valid bit, a dirty bit three permission bits, and the translation. If the maximum size of the page table of a process is 24 megabytes, the length of the virtual address supported by the system is.......... bits.
In DOS, the maximum length of filename is
The child process completes execution, but the parent keeps executing, then the child process is known as:
With 64 bit virtual addresses, a 4KB page and 256 MB of RAM, an inverted page table requires:
Consider a uniprocessor system executing three tasks T1, T2 and T3, each of which is composed of an infinite sequence of jobs (or instances) which arrive periodically at intervals of 3, 7 and 20 milliseconds, respectively. The priority of each task is the inverse of its period and the available tasks are scheduled in order of priority, with the highest priority task scheduled first. Each instance of T1, T2 and T3 requires an execution time of 1, 2 and 4 milliseconds, respectively. Given that all tasks initially arrive at the beginning of the 1st milliseconds and task preemptions are allowed, the first instance of T3 completes its execution at the end of.......... milliseconds.
There are 16 questions to complete.