Operating System (OS)
An incremental backup

should be done each month
None of these
saves all files
saves only files that have recently changed
uses more tapes

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Operating System (OS)
A critical region is

a program segment that often causes unexpected system crashes
none is the above
a program segment that has not been proved bug-free
one which is enclosed by a pair of P and V operations on semaphores
a program segment where shared resources are accessed

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Operating System (OS)
The function(s) of the Syntax phase is(are)

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.
to parse the source program into the basic elements or tokens of the language.
None of these
to build a literal table and an identifier table
to build a uniform symbol table

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Operating System (OS)
A Processor

is a sequence of instructions
None of these
is a device that performs a sequence of operations specified by instructions in memory.
is the device where information is stored
is typically characterized by interactive processing and time of the CPU

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