COMPUTER NETWORKING LESSON 15

WIRELESS NETWORK

(LAN) uses radio waves to connect devices such

as laptops and mobile phones to the Internet and to your business network

and its applications.

WIRED NETWORK

uses cables to connect devices, such as laptops or desktop

computers, to the internet or another network.

WIRELESS NETWORK

allows devices to stay connected to the network but roam

untethered to any wires.

CONVENIENCE

Access your network resources from any location within

your wireless network's coverage area or from any Wi-Fi hotspot.

MOBILITY

You're not tied to your desk, as you are with a wired

connection. You and your employees can go online in conference room

meetings, for example.

PRODUCTIVITY

Wireless access to the Internet and to your company's

key applications and resources helps your staff get the job done and

encourages collaboration.

EASY SETUP

You don't have to string cables, so installation can be quick

and cost effective.

EXPANDABILITY

You can easily expand wireless networks with existing

equipment, whereas a wired network might require additional wiring.

COST

Because wireless networks eliminate or reduce wiring expenses,

they can cost less to operate than wired networks.

security

Advances in wireless networks provide robust security protections.

wireless client

is similar to a person in the audience of a play or movie.

station mode

This client mode is also known as

“— —-” as well.

wireless client

Devices such as computers, tablets, and phones are common Clients on a

network. When you are accessing a wireless hotspot, or the router in your

home or office, your device is the client.

ACCESS POINTS

is sometimes a stand-

alone device that bridges

between a wireless and wired

(Ethernet) network, or is part of

a router.

ACCESS POINT

is similar to a person on stage, addressing an audience or

crowd - they are providing the information for everyone else.

ACCESS POINT

devices that host and control

the wireless connection for

laptops, tablets, or smart

phones.

AD HOC NODE

devices are used to create a Mesh network, so when they are in this

mode, they are called “Mesh Nodes”.

AD HOC NODE

is similar to an individual in a group or roundtable

discussion. They can take equal part in the conversation, raising their hand

when they want to speak so the others will listen.

AD HOC NODE

This allows those devices to connect together directly,

without an Access Point in-between controlling the connection.

AD HOC NODE

all devices are responsible for

sending and receiving messages to the other devices - without anything else

in between.

AD HOC NODE

every device must be in this role, and

using the same configuration to participate. Not all devices use this mode,

and some have it as a “hidden” feature.

WIRELESS CLIENTS, ACCESS POINT, AND AD HOC NODE

WHAT ARE THE THREE WIRELESS ROLES?

TRUE

Clients cannot connect to each other wirelessly

TRUE

Access Points cannot connect to each other wirelessly:

TRUE

Clients cannot connect to Ad-Hoc (Mesh) devices wirelessly:

TRUE

Access Points cannot connect to Ad-Hoc (Mesh) devices wirelessly:

LONG DISTANCE CONNECTION

is often called a “point-to-point”, or “PtP” link.

long distance connection

else. This requires two wireless devices: one configured as an Access

Point; the other configured as a Client.

-100m +

how many meters does the ptp link supports

point to multipoint wireless isp model

These are larger-scale Access Point networks, where there is a

single device in the “center”, controlling all of the Clients connected to it

and bridging those connections to the Internet.

wireless internet service provicers

wisps meaning

point to multipoint wireless service providers model

These types of networks are used by Wireless Internet Service Providers

(WISPs) to connect homes and businesses to the Internet.

point to multipoint wireless service providers model

These are larger-scale Access Point networks, where there is a

single device in the “center”, controlling all of the Clients connected to it

and bridging those connections to the Internet.

MESH NEIGBHOR TO NEIGHBOR NETWORKS

takes the principle of Point-to-Multipoint, and extends it to

the idea of every node connecting to every other node in range.

MESH NEIGBHOR TO NEIGHBOR NETWORKS

This requires that all the

devices are in the Ad-Hoc mode - wireless devices all in AP mode or Client

mode can’t perform the same function.

MULTIPOINT TO MULTIPOINT NETWORK

WHEN MESH NEIGHBOR TO NEIGHBOR NETWORK IS IN EFFECT WHAT DOES IT CREATES?

ANTENNA

Converts electrical signals to radio waves.

ACCESS POINT

A device that allows wireless devices to connect to a wired network

using Wi-Fi or related standards Client Device : The device with a wifi

radio that you use to connect to a wireless access point, e.g. a

computer, cell phone or tablet device.

ETHERNET

A type of networking protocol - it defines the types of cables and

connections that are used to wire computers, switches, and routers

together. Most often Ethernet cabling is Category 5 or 6, made up of

twisted pair wiring similar to phone cables.

POWER OVER ETHERNET

describes systems which pass electrical power along with data on

Ethernet cabling.

NODE

An individual device in a mesh network.

AD HOC

can also refer to

unplanned, decentralized network connections.

AD HOC NETWORK/DEVICE NETWORK

On some devices (e.g. laptops) some available network connections are

shown as computer to computer networks. These are networks that

may be ad-hoc mesh networks or point to point links between

computers for small file sharing. The term “ad-hoc” can also refer to

unplanned, decentralized network connections.

CONVENIENCE, MOBILITY, PRODUCTIVITY,EASY SETUP. EXPANDABILITY, SECURITY, AND COST

WHAT ARE THE 7 BENEFITS OF WIRELESS NETWORK