1.6 Given a scenario, implement the appropriate wireless technologies and configurations Flashcards
802.11
wireless networking
802.11a
operates in 5 GHz range
BSSID
Basic Service Set Identifier The MAC physical address of the wireless router or the access point.
Omnidirectional Antenna
Radiates outwards from the WAP in all directions. Dipole antennas.
Heat map
graphical representaion of the RF courses on your site.
GSM
the first group of networking technologies widely applied to mobile devices. Relied on time division multiple access. TDMA. Enabled multiple uses to share the same channel more or less at the same time. move your sim card from one phone to the next.
802.11n
Supports multi-channel utilization and operates at both 2.4 GHz and 5 GHz bands
what is MIMO
Mulitple In Mulitple Out. enables the devices to make mutiple simultaneous connections.
the lastest standard used to provide lan access
802.11ac
SIM cards came from which tecnology
GSM
First step when setting up wireless network
site servey.
what is 802.11a
original standard 1999. Operates at 5GHz. 54 mbps
what is 802.11b
original standard 1999. Operates at 5GHz. 54 mbps
what is 802.11g
54 mbps. Operates in 2.4 GHz range.
what is 802.11n
2009 update. operates at 5 GHz or 2.4 GHz..
what is 802.11ac
2014 update. latest standard. 5Ghz. Less crowded more frequencies.
2G network
GSM - Global system for mobile commuinciations. Poor data support mostly for voice. Used for circuit switching.
TDMA
Time Decision Multiple Access. Mutiple streams are combined into a single stream.
LTE
Long Term evolution (LTE) - LTE (Long Term Evolution): A standard for wireless broadband communication that falls under the umbrella of 4G technologies.
Wi-Fi frequency what are they?
2.4 GHz or 5 HGHz
channles
group of frequencies numbered by the IEEE. Non-overlapping channles would be necessary
what is bandwidth
amount of frequencey in use. 20 40 80 or 160 MHz.
Yagi Antenna
Directional and high gain antenna.
Service Set Identifier SSID
The SSID is the name of the wireless network, and it is broadcast over the airwaves.
Name 4 Wireless Encryption OptionS
WEP, WPA&WPA2, TKIP, AES
WEP
Wired Equivalent privacy 64bit
WPA&WPA2
Wifi protected access 256bit
TKIP
Temporal Key integrity protocol 128bit
AES
Advanced encryption standard, 128 - 192 - 256bit
Wireless LAN (WLAN)
Network composed of at least one WAP and a computer or handheld device that connect to the WAP.
two wireless modes
Infrastructure and Ad-hoc
Ad-hoc
Used when all of the clients communicate directly with each other.
Infrastructure
Used when wireless clients connect to and are authenticated by a wireless access point.
The term “Channel bonding” refers to a technique that allows for combining adjacent wireless channels to increase the amount of available bandwidth.
What are the advantages of using non-overlapping channels in the 2.4 GHz Wi-Fi band?
Why is the 5 GHz Wi-Fi band preferred in environments with high interference?
How does channel width affect network performance in the 5 GHz band?
What is the impact of channel overlap in Wi-Fi networks, and how can it be mitigated?
