Answer:
Explanation:
If the set of resources are being shared by the processes then it might be desirable to group them as a subsystem.
Grouping the processes and programs into subsystem would be wise because if the given set of processes are used for testing the system and if suppose something weird like system crash happens then only the subsystem in which the processes are running will be affected.
If suppose access to limited resource and for limited amount of time is being given to a specific group of people, then it might be desirable that the user processes to be grouped as a subsystem as well.
Advantages :
Low-level segmentation of machine and its resources cannot be provided by subsystems. This can be done by adding LPARs to a given subsystem.Logically distinct environment is established by subsystem that can be individually managed and configured.
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