Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?
A. 54 Mbps
B. 9 Mbps
C. 11 Mbps
D. 130 Mbps
E. 12 Mbps
F. 65 Mbps
正解:C
質問 2:
What HT technology requires MIMO support on both the transmitter and receiver?
A. Maximal ratio combining
B. Orthogonal Frequency Division Multiplexing
C. Spatial multiplexing
D. Shot guard intervals
正解:C
質問 3:
What component of the 802.11 standard allows stations to reserve access to the RF medium for a specified period of time?
A. Listen Interval
B. DTIMInterval
C. Probe Request frames
D. RTS or CTS frames
E. Short guard intervals
正解:D
質問 4:
When designing a WLAN infrastructure implementation for high client density at a public venue such as a conference or stadium, what are common best practices? (Choose 2)
A. Use high-gain omnidirectional antennas to improve SNR
B. Use directional antennas to isolate the RF propagation
C. Disable 802.11ac MCS rates to prevent high overhead protection mechanisms
D. UseWPA2-Personal security for ease of deployment
E. Configure APs to transmit at or near their maximum power setting
F. Implement a band steering feature for dual-band clients
正解:B,F
質問 5:
In WLAN security, which authentication method always create Layer 2 dynamic encryption keys?
A. HTTPS Captive Portal
B. WEP
C. Shared Key
D. EAP-TLS
正解:D
質問 6:
As a station moves away from the access point to which it is associated, it changes its data rate from 600 Mbps to 540 Mbps and then to 450 Mbps.
What IEEE 802.11 term or phase is used to describe this functionality?
A. Multirate Control
B. Dynamic Rate Switching
C. Modulation and Coding Selection
D. Rate Set Selectivity
正解:B
質問 7:
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. 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.
B. 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.
C. 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.
D. 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.
E. 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.
正解:C
質問 8:
ABC Company performs government contract work that requires disabling WLANs and has recently purchased an 802.11 Wireless Intrusion Prevention System (WIPS) to enforce their "NO WIRELESS" network security policy.
What attack type cannot be recognized by theWIPS?
A. Rogue APs installation
B. Layer 3 DoS
C. RF jamming
D. Packet capturing
E. Deauthentication
正解:D
質問 9:
XYZ Corporation is experiencing connectivity problems with their existing building-to- building bridge link. A concrete wall on the roof of one building is partially blocking the
Fresnel Zone, and the connection is dropping many frames. The administrator moves the antenna to an area not obstructed by the concrete wall and then realizes the RF cable cannot reach the new location.
If an extension cable is added to move the antenna, what are the likely results?
A. The Equivalent Isotropically Radiated Power (EIRP) will decrease.
B. The data throughput rate will increase because VSWR will decrease.
C. The antenna's azimuth beamwidth will decrease.
D. The size of the Fresnel zone will increase.
E. The likelihood of a direct lightning strike will increase.
正解:A
Kaneko -
CWNA-106問題集わりには問題も充実してると思います。知識がためには丁度いい感じです。ひたすら勉強して、試験中にかなり順調に回答しました。