WGU C172 Network and Security - Foundations; PA and OA 2023 with complete solution

WGU C172 Network and Security -

Foundations; PA and OA 2022 with

complete solution

It is a network of users that share computer resources in a limited area. - LAN

Local Area Network - LAN

How are Local Area Networks defined? - In terms of protocol and the topology used for

accessing the network.

A set of rules established for users to exchange information - Protocol

The network architecture used to interconnect the networking equipment. - Topology

What are the most common topologies for LANs? - Ring, Bus, and Star

Uses a token that is placed in the data channel and circulates around the ring. - Token

Ring topology

A deterministic network - Token Ring Topology

Each station connected to the network ensures access for transmission of its messages

at regular or fixed time intervals - Deterministic

What are the disadvantages of the Token Ring system? - 1. If an error changes the

token pattern, it can cause the token to stop circulating.

What is a disadvantage of the Token Ring system from the troubleshooting and

maintenance? - 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? - 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. - Token ring hub

How does the token ring hub improve the network? - It improves the reliability of the

network.

Topology whereas the computers share the media or coaxial cable for data

transmission. - Bus topology

The coaxial cable that is looped through each networking device to transmit data in a

bus topology - ThinNet

In this topology, all devices on the network can see each other's data traffic. - 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. - Bus topology

What are the disadvantages of a bus topology? - "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? - Bus topology

What is the most common topology used in today's LANs? - Star topology

Topology that uses twisted-pair cables with modular plugs to connect computers and

other networking devices. - Star topology

Topology whereas each device is connected to a switch or hub - Star

A switch or hub facilitates the transfer of data between networking devices in this

topology - star

Transmits data to all the devices connected in the star network - hub

Also called a multiport repeater - hub

Not meant for large networks, but are still used in some smaller, slower speed LANs -

hub

A transmission from a hub in a star network to all the devices in the network connected

to the hub - broadcast

Stores the hardware or physical address for each device connected to its ports in a star

network - switch