CWNA-106 무료 덤프문제 온라인 액세스

The 802.11 protocol specifies a fundamentalchannel access method that is required for all stations and is available for use in all IBSS and BSS networks.
What is this fundamental channel access method called?

• A.PCF
• B.HCF
• C.DCF
• D.EDCAF

To ease user complexity, your company has implemented a single SSID for all employees.
However, the network administrator needs a way to control the network resources that can be accessed by each employee based on their department.
What WLAN feature would allow the network administrator to accomplish this task?

• A.IPSec
• B.RBAC
• C.VRRP
• D.WIPS
• E.WPA2
• F.SNMP

If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and reflected paths, what effect will the reflected signal have on the signal that took the direct line-of-sight path?

• A.If the signalsare in-phase, they will combine together, cancel one another out, and create a null.
• B.The direct signal cannot be received if the indirect signal is less than 90 degrees out-of- phase.
• C.Thedirect signal will only be received if the reflected signal is more than 180 degrees out of phase.
• D.The signals will be distorted if the indirect signalarrives simultaneously at the receiver, but 90 degrees out-of-phase.

What are two channel modes specified by the 802.11n (High Throughput) PHY? (Choose
2)

• A.160 MHz
• B.22 MHz
• C.80 MHz
• D.20 MHz
• E.20/40 MHz
• F.40/80 MHz

During the discovery and connectivityprocess, client and AP stations exchange information about their supported data rates. After the association, how do client and AP stations select the supported data rate that will be used to send an 802.11 data frame?

• A.The client and AP may use different transmit rates, but the client determines the data rate thatit will use and the datarate that the AP will use when communicating to the client.
• B.During the association, the client and AP agree to use thesame transmit rate, but either station can request a change at any time after the association.
• C.The client and AP may use different transmit rates, but the AP determines the data rate that will be used by each client station in the BSS.
• D.The client and AP each choose the optimal data rate to use independently of one another, based on their own measurements related tothe RF link.
• E.The client and AP may use a different transmit rates, but the transmit rate is determined by the peer station, based on the peer's experience of the RF link.