Problem $1.(50$ points$)$

This set of questions are TRUE or FALSE.

Two different threads in Unix created by the same process have the same PID i$.$e getpid$()$ value.

Most of the instructions in a System function call in a user$-$program are executed in kernel$-$mode.

A program resides in secondary memory.

Two different processes in Unix can have the same PID $($process ID$)$ i$.$e getpid$()$ value.

A $($single$)$ fork$()$ issued by one process in Unix$/$Linux will create two new processes.

A user $($i$.$e$.$ user's code $/$ process$)$ can modify the PCB associated with that user's process directly without a system call.

It is NOT possible for a process to have its state changed from READY SUSPEND or BLOCKED SUSPEND directly into RUNNING by the kernel.

A process immediately upon creation at $t=0$ s creates $10$ threads; each of the threads intends to sleep for $2$ s and then executes code for $4$ sec starting at $t=2s.$ In the mean$-$time the process terminates after the completion of the thread creation task at $t=1s.$ The number of active threads at $t=3s$ is $0.$

The PCB of a process is stored in kernel$-$space.

A process to process context switch is slower than a KLT to KLT context switch.