PW0-270 무료 덤프문제 온라인 액세스

When an originator QoS STA initiates a BlockAck agreement with a recipient QoS STA, what is the first frame sent by the originator?

• A.ActionBAReq
• B.BlockAckPolicyReq
• C.BlockAckReq
• D.BlockAckSetupReq
• E.ADDBA Request

Shown is a screenshot of a wireless protocol analyzer displaying the decode information for a single 802.11 encrypted data + CF-Poll frame. The infrastructure BSS on which this information was captured is using WEP and this particular frame was sent from a client station (STA) to an access point (AP).

As a protocol analyst, how would you explain the existence of this frame on the wireless medium given the information in the decode?

• A.The access point is operating as a repeater, and clients must poll repeater access points in order to transmit data frames through them.
• B.The frame was sent by a client station that does not comply with IEEE HR/DSSS standard to an access point that is Wi-Fi certified.
• C.The IEEE 802.11 network is using both version 1 and version 2 protocols simultaneously. This unexpected frame is from the version 2 protocol set.
• D.The frame was misinterpreted because of insufficient information received by the analyzer due to frame corruption.

What HT PPDU format is shown in the exhibit?

• A.Dual Training Field format
• B.Non-HT format
• C.HT-mixed format
• D.Non-HT duplicate format
• E.HT-greenfield format
• F.ERP-OFDM format

Given the screenshot shown,

Choose the statement that accurately describes what is being seen by this protocol analyzer.

• A.One access point is using the 802.11 round robin Beacon feature.
• B.Three access points are on the same channel in the same physical area.
• C.Three wireless stations are participating in an Ad Hoc WLAN.
• D.A Single Channel Architecture (SCA) WLAN solution has three WLAN profiles configured

According to 802.11-2007, in what frame type(s) might you find the PMK Count and PMKID List fields?

• A.Beacon and Probe Response frames
• B.Only (Re)Association Request frames
• C.EAPoL 4-Way Handshake frames
• D.All frames that include the RSN IE
• E.Authentication and Association Request and Response frames