Placement papers on Operating System - Set 3

Placement papers on Operating System - Set 3

1. Super computers typically employ _______.

Real time Operating system
Multiprocessors OS
desktop OS
None of the above
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2. A page fault occurs

when the page is not in the memory
when the page is in the memory
when the process enters the blocked state
when the process is in the ready state
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3. What is a shell ?

It is a hardware component
It is a command interpreter
It is a part in compiler
It is a tool in CPU scheduling
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4. In the blocked state

the processes waiting for I/O are found
the process which is running is found
the processes waiting for the processor are found
none of the above
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5. Virtual memory is __________.

An extremely large main memory
An extremely large secondary memory
An illusion of extremely large main memory
A type of memory used in super computers.
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6. If the Disk head is located initially at 32, find the number of disk moves required with FCFS if the disk queue of I/O blocks requests are 98,37,14,124,65,67.

310
324
315
321
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7. Multiprogramming systems ________.

Are easier to develop than single programming systems
Execute each job faster
Execute more jobs in the same time
Are used only on large main frame computers
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8. Which is not the state of the process ?

Blocked
Running
New
Privileged
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9. The solution to Critical Section Problem is : Mutual Exclusion, Progress and Bounded Waiting.

The statement is false
The statement is true.
The statement is contradictory.
None of the above
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10. The problem of thrashing is effected scientifically by ________.

Program structure
Program size
Primary storage size
None of the above
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