PW0-205 무료 덤프문제 온라인 액세스

The PLCP Protocol Data Unit (PPDU) consists of which three parts?

• A.FCS
• B.PSDU
• C.Trailer
• D.MSDU
• E.Preamble
• F.Header

Which features of a wireless LAN protocol analyzer allow troubleshooters to monitor network events that are happening while the troubleshooters are not watching the analyzer user interface?

• A.Node Statistics
• B.Peer Map
• C.Trending Analysis
• D.Alarms
• E.Event Triggers
• F.Notifications

The 802.11 series of standards calls for use of a Traffic Indication Map (TIM) and a Delivery Traffic Indication Message (DTIM). Which of the following is true regarding the TIM and DTIM in an infrastructure BSS?

• A.A DTIM period of 0 means that every TIM is a DTIM.
• B.The DTIM is used in 802.11a and 802.11g Beacons whereas the TIM is used only in
  802.11b Beacons. The DTIM purpose is to allow for higher rates of Beacon broadcasting and thus raise overall data rates in OFDM based systems.
• C.The first Beacon sent during a CFP must contain a DTIM
• D.The TIM and DTIM are both part of the Beacon management frame and are both sent in every Beacon for the purpose of announcing the modulation type and supported rate set of the access point.
• E.The DTIM parameters are part of each Beacon's TIM Information Element, and they are used to indicate queued broadcast/multicast data to client stations using power management features in the BSS.
• F.The TIM is a field in the Beacon Management frame that holds a map of every client station associated to an access point. It is used for broadcast traffic delivery.

In the 802.11b analyzer trace shown, what explains why the Probe Request frame and Probe Response frame are transmitted at different data rates.

• A.802.11b client stations always send Probe Request frames at 1 Mbps regardless of configuration. The access point is required to send Probe Response frames at its highest basic rate, which in this case is 2 Mbps.
• B.The client station output power is set at approximately half of the access point output power. The higher output power of the access point allows it to successfully transmit frames at higher data rates than the client station.
• C.The client station sends a Probe Request frame, which includes its supported rates list, using any one of its supported rates, which in this case is 1 Mbps. The access point sends a Probe Response frame, which includes its supported rates list and the basic rates list, using any supported rate common to both client stations, which in this case is 2 Mbps.
• D.An RF interference source is located near the client station sending the Probe Request frame causing it to slow its transmission rate in order to successfully communicate with the access point.

This screenshot displays a frame capture of a single PING Request and PING Reply communication between two wireless client stations across a Wireless Distribution System (WDS). Which packet numbers have both the FromDS and ToDS bits set to 1?

• A.5
• B.9
• C.11
• D.3
• E.1
• F.7