D413 - Telecomm and Wireless Communications ACTUAL
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (100% CORRECT VERIFIED SOLUTIONS)
CURRENTLY UPDATED VERSION 2026 EDITION
Network
Interconnected collection of computers and communication devices
Node
Individual computer or device connected to a network
Host
Computer or device connected to a network that provides services
,Advantages of Networking
Sharing equipment and data
Disadvantages of Networking
Personnel and cost increase, vulnerabilities to cyberattacks
Local Area Network (LAN)
A network that is usually confined to a single building and managed by
a single entity. Example: Office Building
Metropolitan Area Network (MAN)
Consists of two or more LANs connected with private or public
communication lined within the same geographic area—for example, a
computer network used by governmental employees of an entire city.
Wide Area Network (WAN)
Consists of a large number of networks and PCs connected with
private and public communication lines throughout many
geographic areas; for example, computers used by the US
government.
Personal Area Network (PAN)
A small network, perhaps consisting of a single computer and mobile
device.
Campus Area Network (CAN)
A network spread across multiple buildings in the same geographical
location, much like a college campus.
, Global Area Network (GAN)
Any network that spans multiple countries, for example, the Internet.
Star Topology
A topology that involves running cables from each node to
connect a single point. The center is usually a device known as a
hub.
Ring Topology
Common network topology with devices connected in a circular loop
Bus Topology
Network topology that uses a single cable or conductor to connect
all nodes on the network.
Mesh Topology
A network topology where each node is connected to each of the
other nodes. The number of cable paths rapidly increases as more
nodes are added.
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES (100% CORRECT VERIFIED SOLUTIONS)
CURRENTLY UPDATED VERSION 2026 EDITION
Network
Interconnected collection of computers and communication devices
Node
Individual computer or device connected to a network
Host
Computer or device connected to a network that provides services
,Advantages of Networking
Sharing equipment and data
Disadvantages of Networking
Personnel and cost increase, vulnerabilities to cyberattacks
Local Area Network (LAN)
A network that is usually confined to a single building and managed by
a single entity. Example: Office Building
Metropolitan Area Network (MAN)
Consists of two or more LANs connected with private or public
communication lined within the same geographic area—for example, a
computer network used by governmental employees of an entire city.
Wide Area Network (WAN)
Consists of a large number of networks and PCs connected with
private and public communication lines throughout many
geographic areas; for example, computers used by the US
government.
Personal Area Network (PAN)
A small network, perhaps consisting of a single computer and mobile
device.
Campus Area Network (CAN)
A network spread across multiple buildings in the same geographical
location, much like a college campus.
, Global Area Network (GAN)
Any network that spans multiple countries, for example, the Internet.
Star Topology
A topology that involves running cables from each node to
connect a single point. The center is usually a device known as a
hub.
Ring Topology
Common network topology with devices connected in a circular loop
Bus Topology
Network topology that uses a single cable or conductor to connect
all nodes on the network.
Mesh Topology
A network topology where each node is connected to each of the
other nodes. The number of cable paths rapidly increases as more
nodes are added.
