Term
| How do computers connected to an access point prevent collisions? |
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Definition
| WLAN devices are designed to avoid collisions since they do not detect collisions. CSMA/CA Sense the medium for energy levels and wait until the medium is free before sending data. |
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Term
| What is the hidden node problem? |
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Definition
| When two wireless devices are at opposite sides of an AP and do not sense the other device sending data and therefore their data collides. |
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Term
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Definition
| Request to send / Clear to send -- protocol developed to allow negotiation between a client and an AP. |
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Term
| PSK with TKIP = what type of encrytption |
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Definition
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Term
| PSK with AES = what type of encryption? |
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Definition
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Term
| At what level of the OSI do wireless access points operate? |
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Definition
| Data Link -- They use MAC's for operation. |
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Term
| What two steps are required for a wireless client to associate with an access point? |
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Definition
Wireless client authentication
Wireless client association |
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Term
| How many channels apart must channels be to be sure there is no overlap in signal? |
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Definition
| Five channels --- IE 1,6,11 or 4,9 |
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