Chapter 8 Understanding Wireless Networking Flashcards
IEEE this abbreviation stand for what? p 340
Institute of Electrical and Electrical Engineers
The original standard defines WLAN’s transmitting at ____Mbps or ____Mbps bandwidths using 2.4 GHz frequency spectrum. p 340
Mbps or 2Mbps
The 802.11a standards provide WLAN bandwidths of up to frequency _____Mbps in the GHz frequency spectrum. p340
54 Mbps
FHSS this abbreviation stand for what? p340
Frequency-hopping spread spectrum
DSSS this abbreviation stand for what? p340
Direct-sequence spread spectrum
OFDM this abbreviation stand for what? P340
Orthogonal frequency division multiplexing
The 802.11b standards provide WLAN bandwidths of up to frequency _____Mbps with fall back rates in the 5.5/2/and 1Mbps in the 2.4Ghz frequency spectrum. p341
11 Mbps
802.11b standards use _______ for data encoding
DSSS for data encoding
The 802.11g standards provide WLAN bandwidths of up to frequency _____Mbps in the 2.4 GHz frequency spectrum using OFDM or DSSS encoding. p341
54 Mpbs
T/F 802.11 b and 802.11g are backward compatiblep 341
True
T/F 802.11b devices can understand OFDM trnsmissions p341.
False. You would use 802.11 g access point the access point reverts back to DSSS modulation to provide back word compatibilty.
802.11g if devices are connected to this access point then all devices run @ _______ Mbps
11Mbps.
The three non overlapping channels are ? p341
1,6,11
802.11n claims to provide bandwiths up to______Mbps p342.
600 Mbps.
T/F 802.11n works with only 2.4 ranges. p342.
False. 2.4 and 5.5 Ghz ranges
MIMO this abbreviation stand for what?p 342
Multiple Input Multiple Output
T/F. 802.11n can support up to 8 antennas p342
True
T/F to get 54 mbps out of you 802.11g device you need to be within a 1000 ft.p343
False 100 ft
T/F OFDM breaks down data into sub signals and transmitting them simultaneously . p343
True
FHSS appear to be a______ transmission channel on both end.p343
Single
