Operating System (OS)
Which type of command requires additional files to perform specific operations?

Primary commands
Valuable commands
External commands
Internal commands

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Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Ensuring that system clock works correctly on server
Controlling access to a shared printer in a network
Managing the access to system files in a laptop computers
Controlling the fuel injection system of an automobile engines

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Operating System (OS)
What is dispatch latency ?

The whole time taken by all processor
The time taken by the dispatcher to stop one process and start another
None of the listed here
The time taken by the processor to write a file into disk

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Operating System (OS)
Uniform Symbols Table

contains all constants in the program
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
None of these
a permanent table which lists all key words and special symbols of the language in symbolic form

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