$1.$

What is$/$are the differences between a short$-$term and long$-$term scheduler?

Group of answer choices

short term schedule is executed more frequently than long term scheduler

short term scheduler schedules processes and long term scheduler schedules jobs

both $($A$)$ and $($B$)$

there are no differences

$2.$

CPU bound process $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Group of answer choices

spends more time performing frequent I$/$O operations than using CPU for computation.

spends more time performing computation using CPU and performing less I$/$O operations.

spends as much time doing I$/$O as it does computation using CPU

are programs requiring several devices

$3.$

Context switch is $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Group of answer choices

saving context of the process losing the CPU in its PCB and restoring the context of the process getting the CPU from its PCB

saving context of the process getting the CPU and restoring the context of the process losing the CPU

switch the process from one CPU to another CPU

switching the PCB from the process losing CPU to the PCB of the process getting the CPU

$4.$

A process is a $\_\_\_\_\_\_\_\_\_\_\_\_.$

Group of answer choices

program ready to run when run command is issued by the user

daemon a user creates

process control black

program in execution