Messer Chapter 2.5 - Wireless Networking

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What are wireless networks referred to as?

IEEE 802.11
What frequency range does 802.11a operate in?

5 GHz
What is the throughput for 802.11a?

54 Mbits/s (Smaller range than b)
What frequency range does 802.11b operate in?

2.4 GHz
What is the throughput for 802.11b?

11 Mbits/s
Who has better range? 802.11a or b?

b
What frequency range does 802.11g operate in?

2.4 GHz
What is the throughput for 802.11g?

54 Mbits/s
Which wireless network is backwards compatible with 802.11b?

802.11g
what 2 frequencies does 802.11n operate at?
- 2.4 GHz
- and
- 5 GHz
What is the throughput for 802.11n?

600 Mbits/s
MIMO

Multiple input multiple output
Explain MIMO

It lets 802.11n run 4 streams with 150 Mb/s which equal to 600 Mb/s
What frequency range does 802.11ac operate in?

5 GHz band
Name 3 features that the 802.11ac has
- 1. Larger bandwidth usage
- 2. Faster data transfers
- 3. Eight MIMO streams with up to 7 Gigabits per second
WEP

Wired Equivalent Privacy
What are the two key sizes for WEP?

64 bit or 128 bit key size
Why was WEP not used after 2001?

Cryptographic vulnerabilities were identified (you could figure out the wep key)
WPA

Wi-Fi Protected Access
Why was WPA created?

As a short work around for WEP
What did wpa use with TKIP?

RC4 Cipher
TKIP

Temporal Key Integrity Protocol
What did WPA2 replace TKIP with?

CCMP (Counter mode with Cipher Block Chaining Message Authentication Code Protocol)
CCMP

Counter mode with Cipher Block Chaining Message Authentication Code Protocol
What was RC4 replaced with on WPA2?

AES (Advanced Encryption Standard)
AES

AES (Advanced Encryption Standard)
What is TKIP?

An encryption Protocol
What is AES?

Protects classified information
What is RC4?

A stream Cypher

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Messer Chapter 2.5 - Wireless Networking

Description

Wireless networking

Updated

2017-04-26T23:10:51Z