UGC-NET/GATE Multiple Choice Questions for Operating System.
In building cabling, horizontal wiring from the telecommunications closet (TC) to the wall outlet has a distance limitation of
Translation Look-aside Buffer (TLB) is
a cache-memory in which item to be searched is compared on.e-by-one with the keys
a cache-memory in which item to be searched is compared with all the keys simultaneously
an associative memory in which item to be searched is compared one-by-one with the keys
an associative memory in which item to be searched is compared with all the keys simultaneously
Operating system's module that is responsible for protection of files is known to be
Which of the following can be accesses by transfer vector approach of linking?
External data segments
Data located in other procedures
All of the above
The systems which allows only one process execution at a time, are called
none of the mentioned
MAC is a
command line interface
graphical user interface
What is the most appropriate function of Memory Management Unit (MMU)?
It is an associative memory to store TLB
It is a technique of supporting multiprogramming by creating dynamic partitions
It is a chip to map virtual address to physical address
It is an algorithm to allocate and deallocate main memory to a process
The three levels in QoS are:
Best effort service
All of the mentioned
If you do not know the current time, which command will you use to display the time?
Applying the LRU page replacement to the following reference string: 1 2 4 5 2 1 2 4 The main memory can accommodate 3 pages and it already has pages 1 and 2. Page 1 came in before page 2. How many page faults will occur?
Which of the following is not a communication command?
Which facility dynamically adds probes to a running system, both in user processes and in the kernel?
DIR command is used to
display a list of files in a directory
display types of files
display confriguration files
Which of the following options will be used to display number of blocks used by a file?
Which operation is performed by an interrupt handler?
Saving the current state of the system
Loading the interrupt handling code and executing it
Once done handling, bringing back the system to the original state it was before the interrupt occurred
All of these
Who is called a supervisor of computer activity?
There are 16 questions to complete.