Page |1
WGU - D386 Hardware and Operating
Systems Essentials, USABO Test prep
Questions and Correct Answers/ Latest
Update / Already Graded
operating system
Ans: system software that acts as a "go-between", allowing
computer hardware and other software to communicate with
each other
What is the purpose of a computer operating system?
Ans: It functions as a resource manager.
Which kind of software are Mac OS X and Windows 10 programs?
Ans: Operating system (OS)
Which operating system allows for its source code to be modified and
redistributed?
Ans: Android is an open-source mobile operating system;
therefore, source code is available, and anyone can modify and
redistribute it.
All rights reserved © 2025/ 2026 |
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Cloud-based operating systems
Ans: primarily manages the operation of one or more virtual
machines within a virtualized environment.
What is a feature of cloud-based operating systems?
Ans: They are primarily stateless.
System calls
Ans: unique set of services provided by operating systems for
use by applications and have to be accounted for by different
operating systems.
Application Programming Interface (API)
Ans: A set of software routines that allows one software
system to work with another.
Why do applications designed to work on one operating system not
work on a different operating system?
Ans: Unique system calls
single‐user systems
All rights reserved © 2025/ 2026 |
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Ans: multitasking systems, found in laptops and workstations
mobile device operating systems
Ans: provides single-user and multitasking at a scaled-down
level due to power and memory limitations
Basic resources OS organizes before users can give a computer
instructions:
Ans: 1. Processor
2. Storage
3. Devices
4. Input/Output
5.Memory
Mainframe Systems
Ans: large, fast, and powerful, used for high transaction
processing and complex computations; used by corporations
and government agencies
network server systems
All rights reserved © 2025/ 2026 |
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Ans: designed and named for a specific purpose such as
database servers, web servers, and print servers
real‐time systems
Ans: designed to direct CPU access immediately when needed
or required
Embedded control systems
Ans: specialized operating systems designed to control a single
piece of equipment or machinery
distributed systems
Ans: geared toward allocating process power, programs, files,
and databases to network users
Application Software
Ans: software program that helps you use the computer to do
particular tasks
Drivers
All rights reserved © 2025/ 2026 |
WGU - D386 Hardware and Operating
Systems Essentials, USABO Test prep
Questions and Correct Answers/ Latest
Update / Already Graded
operating system
Ans: system software that acts as a "go-between", allowing
computer hardware and other software to communicate with
each other
What is the purpose of a computer operating system?
Ans: It functions as a resource manager.
Which kind of software are Mac OS X and Windows 10 programs?
Ans: Operating system (OS)
Which operating system allows for its source code to be modified and
redistributed?
Ans: Android is an open-source mobile operating system;
therefore, source code is available, and anyone can modify and
redistribute it.
All rights reserved © 2025/ 2026 |
, Page |2
Cloud-based operating systems
Ans: primarily manages the operation of one or more virtual
machines within a virtualized environment.
What is a feature of cloud-based operating systems?
Ans: They are primarily stateless.
System calls
Ans: unique set of services provided by operating systems for
use by applications and have to be accounted for by different
operating systems.
Application Programming Interface (API)
Ans: A set of software routines that allows one software
system to work with another.
Why do applications designed to work on one operating system not
work on a different operating system?
Ans: Unique system calls
single‐user systems
All rights reserved © 2025/ 2026 |
, Page |3
Ans: multitasking systems, found in laptops and workstations
mobile device operating systems
Ans: provides single-user and multitasking at a scaled-down
level due to power and memory limitations
Basic resources OS organizes before users can give a computer
instructions:
Ans: 1. Processor
2. Storage
3. Devices
4. Input/Output
5.Memory
Mainframe Systems
Ans: large, fast, and powerful, used for high transaction
processing and complex computations; used by corporations
and government agencies
network server systems
All rights reserved © 2025/ 2026 |
, Page |4
Ans: designed and named for a specific purpose such as
database servers, web servers, and print servers
real‐time systems
Ans: designed to direct CPU access immediately when needed
or required
Embedded control systems
Ans: specialized operating systems designed to control a single
piece of equipment or machinery
distributed systems
Ans: geared toward allocating process power, programs, files,
and databases to network users
Application Software
Ans: software program that helps you use the computer to do
particular tasks
Drivers
All rights reserved © 2025/ 2026 |
