WGU C172 Network and Security -
Foundations; PA and OA set***
Questions and Correct Answers/ Latest
Update / Already Graded
It is a network of users that share computer resources in a limited area.
Ans: LAN
Local Area Network
Ans: LAN
How are Local Area Networks defined?
Ans: In terms of protocol and the topology used for accessing
the network.
A set of rules established for users to exchange information
Ans: Protocol
The network architecture used to interconnect the networking
equipment.
Ans: Topology
All rights reserved © 2025/ 2026 |
, Page |2
What are the most common topologies for LANs?
Ans: Ring, Bus, and Star
Uses a token that is placed in the data channel and circulates around
the ring.
Ans: Token Ring topology
A deterministic network
Ans: Token Ring Topology
Each station connected to the network ensures access for transmission
of its messages at regular or fixed time intervals
Ans: Deterministic
What are the disadvantages of the Token Ring system?
Ans: 1. If an error changes the token pattern, it can cause the
token to stop circulating.
All rights reserved © 2025/ 2026 |
, Page |3
What is a disadvantage of the Token Ring system from the
troubleshooting and maintenance?
Ans: The token ring path must be temporarily broken or
interrupted if a computer or any device on the network is to be
removed or added to the network.
What is a solution to the troubleshooting and maintenance
disadvantages of the Token Ring system?
Ans: Connect each computer or device on the network to a
central token ring hub.
A device that manages the passing of the token instead of relying on
individual computers to pass it.
Ans: Token ring hub
How does the token ring hub improve the network?
Ans: It improves the reliability of the network.
Topology whereas the computers share the media or coaxial cable for
data transmission.
Ans: Bus topology
All rights reserved © 2025/ 2026 |
, Page |4
The coaxial cable that is looped through each networking device to
transmit data in a bus topology
Ans: ThinNet
In this topology, all devices on the network can see each other's data
traffic.
Ans: Bus topology
Topology whereas each computer must wait for pauses in transmission
or until the transmission from one device is complete before initiating a
new transmission onto the network.
Ans: Bus topology
What are the disadvantages of a bus topology?
Ans: "1. Data can be corrupted if ore than one device on the
network transmits at the same time and will have to be
resubmitted.
2. The use of the shared coaxial cable prevents data
transmission from being very bandwidth-efficient."
Which topology is seldomly used in modern networks?
All rights reserved © 2025/ 2026 |