wireless networking

Question 1

what is needed to connect to wifi

Answer 1

ISP (Internet Service Provider)
Modem and wireless router (Often combined)
Device with a network interface card (NIC), also known as a network interface controller

Question 2

Wireless components

Answer 2

Wireless Network Interface Card (NIC)
A station consists of a computer and an NIC
Stations share a radio frequency channel
Wireless Access Point (WAP) requires a connection to a router, and the router requires a connection to a modem
The WAP and the modem are often built into the router

Question 3

Service Set IDentifier (SSID)

Answer 3

Identifies each network by a unique name
Must be used by all devices on that network
Can be set manually or automatically
Can be hidden to make it harder to detect
Can be set to broadcast to wireless devices in range of an access point

Question 4

Securing a wireless network

Answer 4

Wireless networks can be less secure than wired ones
Unauthorised users can be hard to spot and transmitted data can easily be intercepted
Security measures include:
WPA
WPA2

mac address whitelisting