CWAP-404 試験問題を無料オンラインアクセス

You are concerned about attackers gaining access to your WLAN from outside the facility.
Why does reducing the output power on the APs not provide sufficient certainty that an attacker outside the facility cannot gain access?

• A.Because the attacker will simplify use a lower gain antenna and a radio with higher receive sensitivity
• B.Because the attacker can increase the output power of the radio on the client
• C.Because the attacker can simply use high gain antennas
• D.Because RF signals can be received even when weak if using a Mac OS X computer

A PHY Header is added to the PSDU at which sub-layer?

• A.Network
• B.LLC
• C.PHY
• D.MAC

What is the function of the PMD sub-layer?

• A.Adds a PHY preamble and header to a PSDU
• B.Performs A-MPDU
• C.Converts 1s and 0s given to it by the PLCP sub-layer into the appropriate RF signals
• D.Provides framing

Given the IEEE 802.11 Beacon frame decode shown, determine which statement is definitively true.

• A.The access point is operating on channel 3.
• B.ERP mobile stations must use the RTS/CTS protocol before Data transmissions.
• C.This Beacon frame came from an ERP or HT access point.
• D.The SSID value in this Beacon is null.
• E.The access point has both 1 Mbps and 2 Mbps configured as basic rates.

When evaluating modulation and coding schemes, you must determine the best coding rate available.
In 802.11 MCS tables, what is the best coding rate from the perspective of highest data rates?

• A.2/3
• B.3/4
• C.5/6
• D.1/2