Batch processes use MLF scheduling; each process enters at priority level $7.$

Interactive processes use MLF scheduling with floating priorities.

Each process has a base priority.

The priority increment for returning from a keyboard input is $4.$

The priority increment for returning from a disk input is $2.$

A process $p$ is running at level $6$ when a new process $q$ arrives.

For each process type, determine which process will run next.

q is a real$-$time process with priority $22$

q is an interactive process with base priority $1$ returning from a disk input

q is a batch process

q is an interactive process with base priority $6$ returning from a keyboard input

Determine if each statement is true or false.

An interactive process q always preempts a running batch process $p$

An interactive process q may preempt a running interactive process $p$

An interactive process $q$ may preempt a running real$-$time process $p$