cs3-1-10

Computer Science Mock Test-3 (Operating Systems) [1-10]

1.The part of machine level instruction, which tells the central processor what has to be done, is:
Operation code
Address
Locator
Flip-Flop

2. Which of the following refers to the associative memory?
the address of the data is generated by the CPU
the address of the data is supplied by the users
there is no need for an address i.e. the data is used as an address
the data are accessed sequentially

3.To avoid the race condition, the number of processes that may be simultaneously inside their critical section is:
8
1
16
0

4. Process is
program in High level language kept on disk
contents of main memory
a program in execution
a job in secondary memory

5.Fork is
the dispatching of a task
the creation of a new job
the creation of a new process
increasing the priority of a task

6.Thrashing
is a natural consequence of virtual memory systems
can always be avoided by swapping
always occurs on large computers
can be caused by poor paging algorithms

7. Which of the following instruction steps, would be written within the diamond-shaped box, of a flowchart?
S = B - C
IS A<10
PRINT A
DATA X,4Z

8.A computer cannot "boot" if it does not have the
Compilre
Loader
Operating System
Assembler

9. Which of the following addressing modes, facilitates access to an operand whose location is defined relative to the beginning of the data structure in which it appears?
Ascending
Sorting
Index
indirect

10.Which of the following rules out the use of GO TO?
Flowchart
HIPO-DIAGRAMS
Nassi-Shneiderman diagram
All of the above

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