2.4 Wireless Standards and Technologies Flashcards
What are the frequencies, maximum MIMO streams, maximum theoretical throughput (per stream), maximum theoretical throughput (total) of the given 802.11 standard:
802.11a
5GHz, N/A, 54Mbit/s, 54Mbit/s
What are the frequencies, maximum MIMO streams, maximum theoretical throughput (per stream), maximum theoretical throughput (total) of the given 802.11 standard:
802.11b
2.4GHz, N/A, 11Mbit/s, 11Mbit/s
What are the frequencies, maximum MIMO streams, maximum theoretical throughput (per stream), maximum theoretical throughput (total) of the given 802.11 standard:
802.11g
2.4GHz, N/A, 54Mbit/s, 54Mbit/s
What are the frequencies, maximum MIMO streams, maximum theoretical throughput (per stream), maximum theoretical throughput (total) of the given 802.11 standard:
802.11n
5GHz/2.4GHz, 4x MIMO, 150Mbit/s, 600Mbit/s
What are the frequencies, maximum MIMO streams, maximum theoretical throughput (per stream), maximum theoretical throughput (total) of the given 802.11 standard:
802.11ac
5GHz, 8x DL MU-MIMO, 867Mbit/s, 6.9Gbit/s
What are the frequencies, maximum MIMO streams, maximum theoretical throughput (per stream), maximum theoretical throughput (total) of the given 802.11 standard:
802.11ax
5GHz/2.4GHz, 8x DL and UL MU-MIMO, 1201Mbit/s, 9.6Gbit/s
What is a SSID (Service Set Identifier)?
The name for the broadcast network names advertised to wireless stations by access points.
What is a BSS (Basic Service Set)?
BSS wireless network types have just one access point, so clients don’t roam between APs.
What is an ESS (Extended Service Set)?
Extended Service Sets are created when the same SSID is advertised on multiple APs.
What is an IBSS (Independent Basic Service Set)?
IBSS is an ad-hoc connection between two stations, no access points or other infrastructure devices are required.
What encryption does Wi-fi Protected Access (WPA) use?
Implemented an algorithm called Temporal Key Integrity Protocol (TKIP) alongside the RC4 cipher.
What encryption does Wi-fi Protected Access 2 (WPA2) use?
Implements CCMP-AES encryption.
Which of the following technologies allows for global cellular communications by identifying the subscriber with a SIM card?
GSM