WGU D075 OA 100 2026 HIGH-YIELD IT
OPERATIONS AND ENTERPRISE SYSTEMS
REVIEW GUIDE
◉ Midrange Computers.
Answer: Sometimes called minicomputers, midrange computers are
less powerful and smaller in physical size than mainframe
computers, but do many of the same things, simply on a smaller
scale.
◉ Microcomputer.
Answer: Smaller mainframe. Most used in business. A single-user
computer that comes in many forms, such as a desktop model, a
portable laptop/notebook, or a handheld computer; also called a
personal computer.
◉ computer software.
Answer: list of instructions for computer to follow that is stored in
the computer's memory. It tells the computer how to work and
perform computer tasks
◉ Application Software.
,Answer: computer software created to allow the user to perform a
specific job or task
◉ system software.
Answer: Consists of the programs that control or maintain the
operations of the computer and its devices.
◉ Utility Software.
Answer: Performs a particular function in the background, such as
virus protection & printer drivers
◉ Software.
Answer: Program that enables the computer to work
◉ Operating system.
Answer: enables and becomes the platform for the app to work
◉ object linking and embedding (OLE).
Answer: Method of sharing and saving data. Software developed by
MS that allows embedding and linking to documents.
◉ Network.
,Answer: Backbone of It infrastructure, two or more devices that
connect
◉ How does a network connect?.
Answer: Client laptop/server (Central CPU).
◉ Device connected to a network.
Answer: Node
◉ Nodes.
Answer: Communicate through wires (Ethernet, cable, fiber optics)
◉ Examples of radio waves.
Answer: Wifi, celltower
◉ Examples of GPS & satellite radio.
Answer: Satellite
◉ Topology.
Answer: The mapping of a physical network and logical
interconnections between nodes(computers).
, ◉ Nodes.
Answer: Devices connected as part of a computer network (cpu,
printer, router)
◉ Bus topology.
Answer: node is connected to a common liner backbone that had
two end points
◉ Star topology.
Answer: Radiate around a central node, most common. If central
fails then all will fail
◉ Ring Topology.
Answer: Connected to another node with first and last computer,
data is transmitted in a circular manner
◉ Virus.
Answer: spread themselves attaching to files and infection webistes,
and emails,, disable systems
◉ malware.
Answer: used for financial gain, plant spyware that can monitor cpu
actions
OPERATIONS AND ENTERPRISE SYSTEMS
REVIEW GUIDE
◉ Midrange Computers.
Answer: Sometimes called minicomputers, midrange computers are
less powerful and smaller in physical size than mainframe
computers, but do many of the same things, simply on a smaller
scale.
◉ Microcomputer.
Answer: Smaller mainframe. Most used in business. A single-user
computer that comes in many forms, such as a desktop model, a
portable laptop/notebook, or a handheld computer; also called a
personal computer.
◉ computer software.
Answer: list of instructions for computer to follow that is stored in
the computer's memory. It tells the computer how to work and
perform computer tasks
◉ Application Software.
,Answer: computer software created to allow the user to perform a
specific job or task
◉ system software.
Answer: Consists of the programs that control or maintain the
operations of the computer and its devices.
◉ Utility Software.
Answer: Performs a particular function in the background, such as
virus protection & printer drivers
◉ Software.
Answer: Program that enables the computer to work
◉ Operating system.
Answer: enables and becomes the platform for the app to work
◉ object linking and embedding (OLE).
Answer: Method of sharing and saving data. Software developed by
MS that allows embedding and linking to documents.
◉ Network.
,Answer: Backbone of It infrastructure, two or more devices that
connect
◉ How does a network connect?.
Answer: Client laptop/server (Central CPU).
◉ Device connected to a network.
Answer: Node
◉ Nodes.
Answer: Communicate through wires (Ethernet, cable, fiber optics)
◉ Examples of radio waves.
Answer: Wifi, celltower
◉ Examples of GPS & satellite radio.
Answer: Satellite
◉ Topology.
Answer: The mapping of a physical network and logical
interconnections between nodes(computers).
, ◉ Nodes.
Answer: Devices connected as part of a computer network (cpu,
printer, router)
◉ Bus topology.
Answer: node is connected to a common liner backbone that had
two end points
◉ Star topology.
Answer: Radiate around a central node, most common. If central
fails then all will fail
◉ Ring Topology.
Answer: Connected to another node with first and last computer,
data is transmitted in a circular manner
◉ Virus.
Answer: spread themselves attaching to files and infection webistes,
and emails,, disable systems
◉ malware.
Answer: used for financial gain, plant spyware that can monitor cpu
actions
