a$.$ FCFS

b$.$ LIFO

STF

d$.$ All of the these

Which of the following component does not ha tong to PCB $($Process Control Block??

ar CPU registers

b$.$ CPU schoduling informution

c$.$ Operating System information

d$.$ Accounting information

Which of the following method is used to imptove the main memory utilization?

a$.$ Swapping

b$.$ Operating system

c$.$ Memory stack

d$.$ None of these:

Section B $(40$ Marks$)$

i$)$ a$)$ What is spooling?

$(2$ marks$)$

$($b$)$ Describe $3$ activities of the OS related to spooling in a distributed environmert. $(3$ marks$)$

Ve$)$ State $2$ advantages of spooling.

$(2$ marks$)$

$($ii$)$ a$)$ What is a process control block and how is it identified?

$(2$ marks$)$

b$)$ Differentiate berween paging and segmentation