1|P age
WGU D386 TEST EXAM – HARDWARE AND
OPERATING SYSTEMS ESSENTIALS EXAM ACTUAL
PREP QUESTIONS AND WELL REVISED ANSWERS -
LATEST AND COMPLETE UPDATE WITH VERIFIED
SOLUTIONS
Which network device is considered passive in terms of how it connects to
other devices? - ✔✔✔ - ANSWER: Hub
Which port number does the file transfer protocol (FTP) use? -
✔✔✔ - ANSWER: 21
Which networking device can be programmed to make decisions to send
packets from an input port to an output port based on IP addresses? - ✔✔✔
- ANSWER: A router uses routing protocols to route packets from one
input port to an output port.
Wide Area Network (WAN) - ✔✔✔ - ANSWER: Spans a large geographic area
such as a state, province, or country
Which network device offers the capability of centralizing the control of
resources and compartmentalizing files for improved reliability? - ✔✔✔ -
ANSWER: Servers perform critical roles such as providing authentication
and providing files to users.
What do networks use to communicate with resources and manage the flow
of data across the network? - ✔✔✔ - ANSWER: Network operating system
(NOS)
,2|P age
Which network resources can be on the cloud or over the internet? - ✔✔✔ -
ANSWER: 1. applications
2. disk storage
Applications can reside on a remote computer and can be accessed over the
cloud. A server can be allocated to store data and files over the cloud.
Metropolitan Area Network (MAN) - ✔✔✔ - ANSWER: A large computer
network usually spanning a city
Local Area Network (LAN) - ✔✔✔ - ANSWER: Connects a group of
computers in close proximity, such as in an office building, school, or home
Personal Area Network (PAN) - ✔✔✔ - ANSWER: provides communication
for devices owned by a single user that work over a short distance
Virtual radio access network (vRAN) - ✔✔✔ - ANSWER:
Which type of network connects devices within the ranges of 30 feet or less? -
✔✔✔ - ANSWER: Personal area network (PAN)
,3|P age
Mesh Topology - ✔✔✔ - ANSWER: Devices are connected with many
redundant interconnections between network nodes.
Bus Topology - ✔✔✔ - ANSWER: A network layout in which there is one
main trunk, or backbone, that all the various computers and network
devices are connected to.
Star Topology - ✔✔✔ - ANSWER: A topology with one central node that
has each computer or network device attached to the central node. All data
first goes into the central node and then is sent out to its destination.
(Think of it like a bicycle wheel with spokes.)
Ring Topology - ✔✔✔ - ANSWER: Topology where the computers are
connected on a loop or ring. Data flows in one direction only.
Gateways - ✔✔✔ - ANSWER: Nodes on a network that serves as an entrance
to another network
Bridges - ✔✔✔ - ANSWER: Layer 2 devices that filter traffic between
segments based on Media Access Control (MAC) addresses.
Firewall - ✔✔✔ - ANSWER: a part of a computer system or network that is
designed to block unauthorized access while permitting outward
communication.
What is the security device that protects a network from hackers and can also
simultaneously prevent computers within the network from accessing
undesirable content on the internet? -
✔✔✔ - ANSWER: Firewalls filter and inspect inbound and outbound packets
based on rules configured by the administrator.
, 4|P age
Virtualization - ✔✔✔ - ANSWER: Creates multiple "virtual" machines on a
single computing device
Hypervisor - ✔✔✔ - ANSWER: Software that enables a single computer to
run multiple operating systems simultaneously.
Type 1 Hypervisor (bare metal) - ✔✔✔ - ANSWER: Software to manage
virtual machines that is installed before any operating system is installed.
Type 2 Hypervisor (hosted) - ✔✔✔ - ANSWER: A virtual machine interface
that's loaded on top of an existing OS.
installed on personal comp
Which component is responsible for creating and running a virtual machine
instance on a host? - ✔✔✔ - ANSWER: Hypervisor
Non-functional requirements - ✔✔✔ - ANSWER: set of specifications that
describe the system's operation capabilities and constraints and attempt to
improve its functionality.
zero client - ✔✔✔ - ANSWER: A client computer that does not have an
operating system and merely provides an interface between the user and the
server.
emulator - ✔✔✔ - ANSWER: A simulator that imitates a program or events.
WGU D386 TEST EXAM – HARDWARE AND
OPERATING SYSTEMS ESSENTIALS EXAM ACTUAL
PREP QUESTIONS AND WELL REVISED ANSWERS -
LATEST AND COMPLETE UPDATE WITH VERIFIED
SOLUTIONS
Which network device is considered passive in terms of how it connects to
other devices? - ✔✔✔ - ANSWER: Hub
Which port number does the file transfer protocol (FTP) use? -
✔✔✔ - ANSWER: 21
Which networking device can be programmed to make decisions to send
packets from an input port to an output port based on IP addresses? - ✔✔✔
- ANSWER: A router uses routing protocols to route packets from one
input port to an output port.
Wide Area Network (WAN) - ✔✔✔ - ANSWER: Spans a large geographic area
such as a state, province, or country
Which network device offers the capability of centralizing the control of
resources and compartmentalizing files for improved reliability? - ✔✔✔ -
ANSWER: Servers perform critical roles such as providing authentication
and providing files to users.
What do networks use to communicate with resources and manage the flow
of data across the network? - ✔✔✔ - ANSWER: Network operating system
(NOS)
,2|P age
Which network resources can be on the cloud or over the internet? - ✔✔✔ -
ANSWER: 1. applications
2. disk storage
Applications can reside on a remote computer and can be accessed over the
cloud. A server can be allocated to store data and files over the cloud.
Metropolitan Area Network (MAN) - ✔✔✔ - ANSWER: A large computer
network usually spanning a city
Local Area Network (LAN) - ✔✔✔ - ANSWER: Connects a group of
computers in close proximity, such as in an office building, school, or home
Personal Area Network (PAN) - ✔✔✔ - ANSWER: provides communication
for devices owned by a single user that work over a short distance
Virtual radio access network (vRAN) - ✔✔✔ - ANSWER:
Which type of network connects devices within the ranges of 30 feet or less? -
✔✔✔ - ANSWER: Personal area network (PAN)
,3|P age
Mesh Topology - ✔✔✔ - ANSWER: Devices are connected with many
redundant interconnections between network nodes.
Bus Topology - ✔✔✔ - ANSWER: A network layout in which there is one
main trunk, or backbone, that all the various computers and network
devices are connected to.
Star Topology - ✔✔✔ - ANSWER: A topology with one central node that
has each computer or network device attached to the central node. All data
first goes into the central node and then is sent out to its destination.
(Think of it like a bicycle wheel with spokes.)
Ring Topology - ✔✔✔ - ANSWER: Topology where the computers are
connected on a loop or ring. Data flows in one direction only.
Gateways - ✔✔✔ - ANSWER: Nodes on a network that serves as an entrance
to another network
Bridges - ✔✔✔ - ANSWER: Layer 2 devices that filter traffic between
segments based on Media Access Control (MAC) addresses.
Firewall - ✔✔✔ - ANSWER: a part of a computer system or network that is
designed to block unauthorized access while permitting outward
communication.
What is the security device that protects a network from hackers and can also
simultaneously prevent computers within the network from accessing
undesirable content on the internet? -
✔✔✔ - ANSWER: Firewalls filter and inspect inbound and outbound packets
based on rules configured by the administrator.
, 4|P age
Virtualization - ✔✔✔ - ANSWER: Creates multiple "virtual" machines on a
single computing device
Hypervisor - ✔✔✔ - ANSWER: Software that enables a single computer to
run multiple operating systems simultaneously.
Type 1 Hypervisor (bare metal) - ✔✔✔ - ANSWER: Software to manage
virtual machines that is installed before any operating system is installed.
Type 2 Hypervisor (hosted) - ✔✔✔ - ANSWER: A virtual machine interface
that's loaded on top of an existing OS.
installed on personal comp
Which component is responsible for creating and running a virtual machine
instance on a host? - ✔✔✔ - ANSWER: Hypervisor
Non-functional requirements - ✔✔✔ - ANSWER: set of specifications that
describe the system's operation capabilities and constraints and attempt to
improve its functionality.
zero client - ✔✔✔ - ANSWER: A client computer that does not have an
operating system and merely provides an interface between the user and the
server.
emulator - ✔✔✔ - ANSWER: A simulator that imitates a program or events.
