Operating System (OS)
Under virtual storage,

None of these
a single program is processed by two or more CPUs
interprogram interference may occur
two or more programs are stored concurrently in primary storage
only the active pages of a program are stored in primary storage

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Operating System (OS)
Memory management is :

critical for even the simplest operating systems
None of these
replaced with virtual memory on current systems
not used in modern operating system
not used on multiprogramming systems

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Operating System (OS)
The main function of the dispatcher (the portion of the process scheduler) is

bring processes from the disk to the main memory
assigning ready process to the CPU
None of these
suspending some of the processes when the CPU load is high
swapping a process to the disk

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