An OS using a preemptive scheduling policy

assigns dynamically changing priorities. The priority of a process changes at different rates

depending on its state as follows

$\backslash$alpha Rate of change of priority when a

process is running

$\backslash$beta Rate of change of priority when a

process is ready

$\backslash$gamma Rate of change of priority when a

process is performing I$/$O

Note that the rate of change of priority can be

positive, negative, or zero. A process has priority $0$ when it is created. A process with a larger

numerical value of priority is considered to have

a higher priority for scheduling.

Comment on properties of the scheduling policies in each of the following cases:

a$.\backslash$alpha $>0,\backslash$beta $=0,\backslash$gamma $=0.$

b$.\backslash$alpha $=0,\backslash$beta $>0,\backslash$gamma $=0.$

c$.\backslash$alpha $=\backslash$beta $=0,\backslash$gamma $>0.$

d$.\backslash$alpha $<0,\backslash$beta $=0,\backslash$gamma $=0.$

Will the behavior of the scheduling policies

change if the priority of a process is set to $0$ every

time it is scheduled?