CWAP-405 무료 덤프문제 온라인 액세스

You are analyzing a packet decode of a Probe Request and notice the SSID element has a length of zero. What do you conclude about the transmitting STA?

• A.The STA is discovering a list of available BSSs
• B.The STA's WLAN adaptor is disabled
• C.The STA is operating in Ad-Hoc mode
• D.The WLAN adaptor is configured in promiscuous mode

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

Which one of the following is an advantage of using display filters that is not an advantage of capture-time filters?

• A.They only hide the packets from view and the filtered packets can be enabled for view later
• B.Multiple of them can be applied simultaneously
• C.They allow for focused analysis on just the packets of interest
• D.Once created they are reusable for later captures

When a client station operating under EDCA sends an RTS frame and NAV protection is desired for only the first or sole frame in the TXOP, the duration field will contain an amount of time, measured in microseconds, equal to which of the following?

• A.1 RTS, 1 CTS, 2 ACK , 1 DATA, 4 SIFS
• B.1 RTS, 1 ACK, 1 DATA, 2 SIFS, 1 DIFS
• C.The entire duration of the TXOP
• D.1 CTS, 2 ACK, 1 DATA, 2 SIFS
• E.1 CTS, 1 ACK, 1 DATA, 3 SIFS
• F.1 RTS, 2 ACK, 1 DATA, 4 SIFS

Where, in an 802.11 Beacon frame, will you see the parameters used for QoS in the BSS?

• A.QoS Control field in the MAC Header
• B.WMM Information Element
• C.QoS field in PHY header
• D.EDCA Information field in the MAC Header