Operating System (OS)
Block caches or buffer caches are used

to handle interrupts
to speed up main memory read operation
to improve disk performance
to increase the capacity of the main memory
None of these

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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.
to build a literal table and an identifier table
to build a uniform symbol table
None of these

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