CIT211 Exam Practice Questions and Answers 2026
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Why is an OS important in a computer system?
a.To provide features for low-level scheduling of processes.
b.To manipulate process control blocks.
c.It serves as an interface to coordinate different resources of computer
d.To design and implement abstraction mechanisms.
The Zeroth Generation can be define as________?
a.The period before the commercial production and sale of computer equipment
b.Libraries, operating systems, and applications
c.Abstraction, simulation, and programming
d.Hardware, encryption, and networking
________ is the goal of spooling?
a.The digital operating system component or even the operating system
b.The disk operating system only
c.The digital operating system only
d.to increase resource utilization
What did the abbreviation DOS refer to in some cases?
a.A kernel that only supports video game consoles and embedded systems
b.A kernel that provides services to applications
c.The disk operating system component or even the operating system…
d.A kernel that only manages hardware resources
Memory management is_________?
a.Digital Operating Software
b.Digital Operating System
c.The process of safely allowing processes to access computer memory as they require it
d.Disk Operating Software
John W. Backus in 1956 developed which programming language?
a.to increase the user\’s waiting time
b.FORTRAN
c.to decrease resource utilization
d.to increase the CPU\’s waiting time
_________ is an example of a disk operating system that can refer to the entire operating system?
a.first-come-first-served rule
b.dynamic priority rule with preemption
c.round-robin rule with preemption
d.FreeDOS
The main task of a kernel is________?
a.In the late days of mainframes
b.In the late days of microcomputing
c.In the early days of mainframes
d.To allow the execution of applications and support them with features such as hardware abstractions
The most significant of the early computers was _________?
a.the introduction of multiprogramming
b.the idea of taking fuller advantage of the computer\’s data channel I/O capabilities
c.EDVAC
d.the introduction of IBM\’s System/360 family of computers
Disk operating system usually loaded_______________?
a.interrupt system
b.storage protecting hardware
c.privileged instructions
d.From a disk
An exokernel is_______________?
a.Managing computer resources, facilitating networking, and controlling input and output devices
b.Providing an interface to coordinate different resources of a computer
c.A type of kernel that does not abstract hardware into theoretical models
d.None of the options
__________ is the purpose of virtual addressing in memory management?
a.None of the options
b.Allow processes to access memory safely as they require it
c.Developing new system functions without interfering with its service
d.Managing computer resources, facilitating networking, and controlling input and output devices
Which of the following is a function of OS as a resource manager?
a.By providing an interface for using the computer system
b.By managing the hardware and software resources of a computer
c.By allowing computer system resources to be used in an efficient manner
d.By directing the processor in the use of the other system resources and in the timing of its execution of other programs
The first electronic digital computers on the ABC was designed and built by_________?
a.A system where the number of processes being run simultaneously is higher than the maximum number of processes the computer is physically able to run.
b.A system where each process is allowed to run uninterrupted until it makes a special request.
c.A system where each process has equal priority.
d.John Atanasoff
What are some issues in kernel design?
a.Load files containing application code into memory
b.Determine which processes are running on the computer
c.Performance, scalability, and security
d.Manage interprocess communication
________. is hardware-based protection?
a.Deciding which memory each process can use
b.Providing synchronization mechanisms to ensure that no two processors attempt to modify the same data at the same time
c.Allocating requests from applications to perform I/O
d.Protecting resources by using hardware features
The mode of operation during the First Generation was_________?
Question 4Answer
a.Closed shop
b.The period after the invention of the operating system
c.The period after the development of the first commercial computer in 1951
d.The period after the development of transistors
Operating System can be defined as______?
a.Managing file systems
b.Controlling and allocating memory
c.A set of computer programs that manage the hardware and software resources of a computer
d.Prioritizing system requests
_______________ were the two new system programs introduced with the HASP system?
a.a system reader and a system writer
b. The core of computer programming that primarily deals with computer architecture
c.A set of programs that provide an interface to the OS managed resources
d.An application that provides an interface to coordinate different resources of computer
Inter-process communication is_______________?
a.By permitting the effective development, testing and introduction of new system functions
b.A way for processes to communicate with each other
c.By allowing users to directly program the hardware
d.By allowing computer system resources to be used in an efficient manner