最新なCWAP PW0-270問題集（60題）、真実試験の問題を全部にカバー！

質問 1：
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. EAPoL 4-Way Handshake frames
C. Authentication and Association Request and Response frames
D. Only (Re)Association Request frames
E. All frames that include the RSN IE
正解：D

質問 2：
With what access category's parameters are WLAN multicast video frames transmitted when the EDCAF is in use by the transmitting station?
A. AC_VI
B. AC_BK
C. AC_BE
D. AC_VO
正解：C

質問 3：
Which statement accurately describes IEEE 802.11 Power Save operation in a Basic Service Set that does not support the QoS facility?
A. After waking at a scheduled TBTT, client stations send Null Function frames to the access point with the Power Management bit set back to zero.
B. Upon receiving traffic for a dozing station, the access point wakes the client station using a PS-Poll frame so that the client station can receive the data.
C. Following a period of time in a low power state, client stations wake themselves and automatically poll the access point for traffic using a PS-Poll frame.
D. When the access point's buffer is full, the access point wakes all client stations using a PS-Poll frame so that they can receive the data.
E. After waking from a low power state, client stations listen for the next Beacon to determine if sending a PS-Poll frame to the access point is necessary.
正解：E

質問 4：
Which parameters accurately describe the Beacon Interval field in the Beacon frame? (Choose 2)
A. Value can range from 0 to 2007
B. Indicates the exact time interval between Beacon transmissions
C. Measured in time units of 1024 (us)
D. 4-octet length
E. Indicates the desired time interval between TBTTs
正解：C,E

質問 5：
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-mixed format
C. HT-greenfield format
D. Dual-CTS
E. Phased Coexistence PPDU
正解：A

質問 6：
What is the purpose of a PHY preamble?
A. It provides a cyclic redundancy check (CRC) for the receiving station to validate that the PLCP header was received correctly.
B. It indicates to the PHY the modulation that shall be used for transmission (and reception) of the PSDU.
C. It provides the receiver(s) with an opportunity for RF channel synchronization prior to the start of the PLCP header.
D. It communicates important information about the PSDU's length, rate, and upper layer protocol-related parameters.
正解：C