What is one electronic device that can use Wi-Fi?
personal computers
And another?
video-game consoles
And one more?
phones and tablets
What is a hotspot?
an access point
Is this the only thing a device needs to get wireless internet?
yes
True or False: A hotspot can cover a wider area indoors than outdoors.
false
How small can a hotspot be?
unknown
How big can hotspot coverage be if multiple points are used?
many square kilometres
Do you need a license to use the ISM band?
no
What kitchen device uses the same band?
microwave ovens
What body decided to release the band for unlicensed use?
U.S. Federal Communications Commission
When?
1985
What was ALOHAnet an ancestor of?
Ethernet
What kind of protocol did the ALOHA protocol give rise to?
IEEE 802.11
What area did ALOHAnet serve?
the Hawaiian Islands
When?
1971
What kind of network did it provide?
UHF wireless packet
What is a type of wired connections?
twisted pair.
True or False: Twisted pair is more secure against attacks than Wi-Fi.
true
Why is Wi-Fi less secure?
it has no physical connections