Exercise: Operating Systems Concepts

Questions for: Operating Systems Concepts

A translator is best described as
A:
an application software
B:
a system software
C:
a hardware component
D:
all of the above
Answer: B
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A disk scheduling algorithm in an operating system causes the disk arm to move back and forth across the disk surface in order to service all requests in its path. This is a
A:
First come first served
B:
Shortest Seek Time First (SSTE)
C:
Scan
D:
FIFO
Answer: C
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The function(s) of the Syntax phase is(are)
A:
to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs.
B:
to build a literal table and an identifier table
C:
to build a uniform symbol table
D:
to parse the source program into the basic elements or tokens of the language.
Answer: A
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Which table is a permanent database that has an entry for each terminal symbol.
A:
Terminal table
B:
Literal table
C:
Identifier table
D:
Reductions
Answer: A
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If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is
A:
16
B:
32
C:
64
D:
128
Answer: D
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