Identify

the definition of an operating system.

• A software that allows users to perform specific tasks.

• A set of program that control the way a computer system works

• A tools to help users to manage daily tasks using computer

• A set of programming language that allows users to perform specific tasks

Choose the type of kernel where every services of it are migrated out to user level process. The kernel divides the OS into several processes, each which implements a single set of services

• monolithic kernel

• layered kernel

• distributed kernel

• micro kernel

What is the example of voice user interface?

• McDonald’s drive-through

• Windows 10

• Command line

• Online registration of subjects

Select the non-volatile memory.

• RAM

• Disk storage

• Cache memory

• Main memory

Identify the placement strategy that produce the largest waste of space

• First-fit

• Best-fit

• Worst-fit

• Large-fit

Select the concepts that related

to the statement below.

“More than one user’s program can be resident

in main memory at one time. In this system, multiple jobs are loaded into the

central memory and each is allotted some CPU- time, a tiny fraction of a

second during which it receives the CPU’s attention”.

• Multitasking

• Multiprogramming

• Buffering

• Caching

Identify the routine category that involve physical I/O controller.

• transient

• dispatcher

• normal

• resident

Select the type of CPU Scheduling showed in the Diagram A1 above.

• Multilevel Feedback Queue

• Multilevel Queue

• Multilevel Memory Queue

• Multilevel Ready Queue

Define the action that can prevent “no-preemption” deadlock condition?

• A particular resource can only be requested when no others are being used

• Release any resource already being used if the process can't get an additional resource

• Assign number to the resources and only request in ascending order

• Allow preemption

Identify the CPU scheduling algorithm that provides the minimum average waiting time

• First-In-First-Out

• Shortest Job First

• Priority

• Round-robin