CompTIA 901 Unit 2.5 WiFi Standards

What is the reason for using Wi-Fi Protected Access version 2 (WPA2) instead of Wired Equivalent Privacy (WEP) on a router?

Improved data security

Why is Wired Equivalent Privacy (WEP) no longer recommended as a wireless security method on a router?

It uses static encryption keys, which can easily be cracked by eavesdropping attackers.

In what way does Wi-Fi Protected Access (WPA) improve upon Wired Equivalent Privacy (WEP)?

It uses the Temporal Key Integrity Protocol (TKIP), which provides a 128-bit encryption key.

What special feature of Wi-Fi Protected Access version 2 (WPA2) improves upon Wi-Fi Protected Access (WPA)?

The inclusion of Advanced Encryption Standard (AES) and Cipher Block Chaining Message Authentication Code Protocol (CCMP)

Which wireless standard operates exclusively in the 5 GHz band?

802.11ac

Which 802.11 standard has the lowest data transfer rate?

802.11b

Which wireless standard supports up to 54 Mbps in the 2.4 GHz band?

802.11g

Which statement about 802.11x compatibility is accurate?

802.11g and 802.11b are not compatible with 802.11a.

Which form of wireless encryption introduced the Temporal Key Integrity Protocol (TKIP) security protocol?

Wi-Fi Protected Access (WPA)

Which method of wireless encryption is considered to be the least secure?

Wired Equivalent Privacy (WEP)

What is the maximum data throughput supported by the 802.11n standard?

600 Mbps

Which wireless standard supports speeds up to 54 Mbps in the 5 GHz frequency band?

802.11a

What is the maximum throughput of an 802.11g device?

54 Mbps

What is the major limitation of the 802.11a standard?

The signal range