Ch. 17 Learning Wireless
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| wireless access point (WAP) | centrally connects wireless nodes in the same way that a hub connects wired Ethernet.
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| carrier sense multiple access/collision avoidance (CSMA/CA) | Networking scheme used by wireless devices to transmit data while avoiding data collision, which wireless nodes have difficulty detecting
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| Ad hoc mode | peer-to-peer, each wireless node in direct contact with every other node in a decentralized free-for-all
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| infrastructure mode | use one or more WAPs to connect the wireless network nodes to a wired network segment
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| service set identifier (SSID) | network name
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| MAC address filtering | a method that enables you to limit access to your wireless network based on the physical, hard-wired address of the units wireless NIC
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| Wired Equivalent Privacy (WEP) | attempt to secure transmitted data. Uses 40 & 104 bit encryption
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| Wi-Fi Protected Access (WPA) | used to address the weakness of WEP and act a an upgrade to WEP.
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| Wi-Fi Protected Access 2 (WPA2) | lockdown wireless networks. Uses Advanced Encryption Standards (AES) among other improvement, to provide a secure wireless enviroment.
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| IEEE 802.11 | wireless ethernet, Wi-Fi
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| 802.11a | 5 GHz freq.,up to 54 Mbps, 150 ft. range
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| 802.11b | 11 Mbps, 300 ft. range, 2.4 GHz freq.
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| 802.11 g | 54 Mbps, 300 ft. range, 2.4 GHz freq., backwards compatible
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| 802.11n | 100+ Mbps, 300+ft range, 2.4 and 5 GHz freq. backwards compatible
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| multiple in/multiple out (MIMO) | enable a device to make simultaneous connections
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| Infrared Data Association (IrDA) | communication through infrared devices w, speeds up to 4 Mbps
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| Bluetooth | wireless tecnology designed to create small wireless networks preconfigured to do very specific jobs, but not replace full-function networks or Wi-Fi.
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| personal area networks (PAN) | small wireless network created w/ bluetooth technology and intended to link PCs and other peripheral devices.
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| cellular wireless network | enables you to connect to the Internet through a network-aware PDA
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Jefferywrght
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