What method of identity verification is used by Open System Authentication?
Answer(s): D
Open authentication is a null authentication algorithm. The access point will grant any request for authentication. It might sound pointless to use such an algorithm, but open authentication has its place in 802.11 network authentication. Authentication in the 1997 802.11 specification is connectivity-oriented.
Which of the following indicates a decrease in the amplitude of an RF signal caused by an external interference source?
Answer(s): C
What is the expended text form for the wireless LAN security acronym WEP?
Answer(s): B
Open System authentication is a very simple process. As the wireless LAN administrator, you have the option of using WEP (wired equivalent privacy) encryption with Open System authentication.
CWNA Official Study Guide, Page 174
What Wireless LAN configuration implements power management by having stations transmit beacons after they awake from sleep mode?
An independent basic service set is also known as an ad hoc network. An IBSS has no access point or any other access to a distribution system, but covers one single cell and has one SSID, as shown in Figure 7.11. The clients in an IBSS alternate the responsibility of sending beacons since there is no access point to perform this task.
CWNA Official Study Guide, Page 182
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