最新的CWNP CWNA-106免費考試真題

問題1

What statement about the SSID is true?

A. The SSID is a pseudo-random number assigned to each client by an AP.

B. The SSID is a security sessionidentifier used in RSNs.

C. The SSID must be included in an association request frame.

D. The SSID is an alphanumeric value assigned to devicemanufacturers by the IEEE.

正確答案: A

問題2

What parameter of the client drivershould be configured on a Windows computer to optimize moving from one AP to another within the ESS?

A. Roaming threshold

B. Band preference

C. SSID selection

D. ESSID selection

正確答案: D

問題3

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 size of the Fresnel zone will increase.

B. The antenna's azimuth beamwidth will decrease.

C. The data throughput rate will increase because VSWR will decrease.

D. The Equivalent Isotropically Radiated Power (EIRP) will decrease.

E. The likelihood of a direct lightning strike will increase.

正確答案: D

問題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. Configure APs to transmit at or near their maximum power setting

C. Use directional antennas to isolate the RF propagation

D. Disable 802.11ac MCS rates to prevent high overhead protection mechanisms

E. UseWPA2-Personal security for ease of deployment

F. Implement a band steering feature for dual-band clients

正確答案: C,F

問題5

You have been sent as a consultant to a customer site that is experiencing problems with some 2.4 GHz clients on their 802.11a/g/n/ac network. After collecting informationfrom the company about the problem, your initial troubleshooting step is to find a client device experiencing performance problems and observe its 802.11 frame exchanges in a protocol analyzer. The retransmission rate for that client is 65% instead of thecompany's baseline, which is 9%.
Based on this information, what troubleshooting step should follow to isolate the problem?

A. Check theframe decodes in the protocol analyzer and look for an excessive number of deauthentication frames.

B. Evaluate the client's operating frequency band with a spectrum analyzer, looking for a high noise floor or interference sources.

C. Install Wi-Fi endpoint security and reporting software on the client device to monitor and log the retransmission behavior.

D. Utilize a laptop-based site survey and planning tool to create a predictive model of the optimal AP placement in the customer's facility.

E. With a protocol analyzer, identify the client's roaming threshold settings and reassociation behavior.

正確答案: B

問題6

In an infrastructure Basic Service Set (BSS), how does the passive scanning process occur?

A. Client stations broadcast Probe Request frames on the singlechannel forwhich they are programmed. Nearby access points respond on that channel with Probe Response frames.
Client stations record information found in the Probe Response frames for use in the association process.

B. Client stations broadcast Probe Request frames on all supportedchannels inthe regulatory domain. Nearby access points respond with Probe Response frames. Client stations record information in the Probe Response frames for use in the association process.

C. Access pointsbroadcast Beacons on all channels of each radio within the regulatory domain. Nearby client stations record information found in the Beacons for use in the association process.

D. Access points broadcast Beacons on asingle channel for which they are programmed.
Nearby client stations listen for Beacon frames and record information found in the
Beacons for use in the association process.

正確答案: D

問題7

Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?

A. 11 Mbps

B. 65 Mbps

C. 54 Mbps

D. 9 Mbps

E. 130 Mbps

F. 12 Mbps

正確答案: A

問題8

Whatfactors are likely to cause the greatest impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS? (Choose 3)

A. Use of WEP or TKIP for encryption instead of CCMP

B. Increasing or decreasing the number ofspatial streams in use by the client station and
AP

C. RF interference from more than 10 nearby Bluetooth transmitters

D. Increasing the beacon interval from 100 to 200 (TUs)

E. Use of passphrase authentication instead of 802.1X/EAPauthentication

正確答案: A,B,C

問題9

When compared with legacyPower Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

A. VHT TXOP power save allows the WLAN transceiver to disable more components when in a low powerstate.

B. VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.

C. VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.

D. Legacy Power Save mode was removed in the 802.11ac amendment.

正確答案: B

最新的CWNP Certified Wireless Network Administrator - CWNA-106免費考試真題

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