QUESTION $1$

Which two statements are true? Multitasking...

A$.$ was developed to increase I$/$O speed.

B$.$ was developed to increase processor efficiency.

C$.$ works because the processor executes multiple instructions simultaneously.

D$.$ reduces idle processor cycles.

QUESTION $2$

Which two statements are true? Compared to a monolithic kernel, a microkernel...

A$.$ has better support for code reusability.

B$.$ is more efficient.

C$.$ is less modular.

D$.$ has a smaller memory footprint if you just consider the kernel itself.

QUESTION $3$

If a Process Model has two suspend states, the transition from a Ready state to

a Ready$/$Suspend state may occur because...

A$.$ the OS must free up a large block of main memory used by the process.

B$.$ the process has a higher priority than a blocked process.

QUESTION $4$

In a user$-$level thread model each individual thread within the process

A$.$ is schedulable by the kernel.

B$.$ is schedulable by the runtime environment of the process.

C$.$ is not schedulable $-$ only the process can be scheduled.

QUESTION $5$

Select two. In Linux a spawned thread inherits$/$shares which two items with its parent after a pthread$\_$create$()$ call? I.e$.,$ these items are not zeroed out.

A$.$ open file descriptors

B$.$ the signal queue

C$.$ the CPU time$-$clock

D$.$ values in the data segment

QUESTION $6$

Strong semaphores $($e$.$g$.,$ SysV IPC$)$ use what type of policy for releasing multiple blocked processes on semphore?

A$.$ The semaphore will be released to the blocked processes in queue order.

B$.$ Which process gets added to the queue first is not a race condition.