Free CWNP CWAP-404 Exam Dumps Questions & Answers

Many access points support IEEE 802.1Q VLAN tagging. When analyzing a WLAN system using IEEE 802.1Q tags, where can the VLAN tag number be seen?

• A.  In the Frame Control field of the MPDU header
• B.  In the Beacon Management frame's Capabilities fixed field
• C.  In the Ethernet header on the wired port of the access point
• D.  In the Sequence Control field of the MSDU
• E.  In the PLCP header's Service field

You're the WLAN administrator for a large retailer based at the HQ in New York. The London- based office has been complaining about WLAN disconnections around lunch time each day. You suspect this might be interference from the staff microwave, how might you test your theory from the New York office?

• A.  Ask a local member of staff to take some pictures of the microwave, including some close-ups of the door seal so that you can access it
• B.  Place one of the London APs into spectrum analyzer mode and monitor the situation over lunch time
• C.  Ask a local member of staff to change the frequency of the microwave and see if the disconnections stop
• D.  Access the microwave remotely and run a diagnostic check

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

The To DS bit is set to 0 and the From DS is set to 1.
What best describes this 802.11 frame?

• A.  A frame being transmitted in a mesh BSS
• B.  A frame being transmitted from an AP to a client STA
• C.  A frame being transmitted from a client STA to an AP
• D.  A frame being transmitted directly from one client STA to another

When a 5 GHz HT station in a 40 MHz BSS desires to protect a 40 MHz transmission from an OFDM station using an RTS/CTS or CTS-to-Self exchange, what frame format is used for the RTS and/or CTS frames?

• A.  Non-HT Duplicate
• B.  HT-greenfield format
• C.  HT-mixed format
• D.  Phased Coexistence PPDU
• E.  Dual-CTS