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General knowledge question and answer on Operating system

Round robin scheduling is essentially the preemptive version of ________ ?
A.    FIFO
B.    Shortest job first
C.    Shortest remaining
D.    Longest time first

Answer : A.  FIFO

A page fault occurs ?
A.    when the page is not in the memory
B.    when the page is in the memory
C.    when the process enters the blocked state
D.    when the process is in the ready state

Answer : A.  when the page is not in the memory

Which of the following will determine your choice of systems software for your computer?
A.    Is the applications software you want to use compatible with it ?
B.    Is it expensive ?
C.    Is it compatible with your hardware ?
D.    Both 1 and 3

Answer : D.  Both 1 and 3

What is a shell ?
A.    is a hardware component
B.    It is a command interpreter
C.    It is a part in compiler
D.    It is a tool in CPU scheduling

Answer : B.   It is a command interpreter

Routine is not loaded until it is called. All routines are kept on disk in a relocatable load format. The main program is loaded into memory & is executed. This type of loading is called... ?
A.    Static loading
B.    Dynamic loading
C.    Dynamic linking
D.    Overlays

Answer : C.  Dynamic linking

In the blocked state ?
A.    the processes waiting for I/O are found
B.    the process which is running is found
C.    the processes waiting for the processor are found
D.    none of the above

Answer : A.  the processes waiting for I/O are found

What is the memory from 1K - 640K called ?
A.    Extended Memory
B.    Normal Memory
C.    Low Memory
D.    Conventional Memory

Answer : D.  Conventional Memory

Virtual memory is ..... ?
A.    An extremely large main memory
B.    An extremely large secondary memory
C.    An illusion of extremely large main memory
D.    A type of memory used in super computers

Answer : C.  An illusion of extremely large main memory