Operating System (OS)
The advantage(s) inherent to using high level languages is (are)

Fewer people, less management and shorter transition in learning time
Improved debugging capability, and superior documentation
A greater degree of machine independence
None of these
All of these

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Operating System (OS)
Assembler language

is usually the primary user interface
None of these
is a mnemonic form of machine language
requires fixed-format commands
is quite different from the SCL interpreter

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Operating System (OS)
A critical region is

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

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