CWNA-106試験無料問題集（140題）「CWNP Certified Wireless Network Administrator 認定」

出題：1

You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?

A. Performingprotocol analysis with a single wireless adapter that is scanning all channels in use

B. Verifying the VHT functionality to handle the call volume incurred by a single VoIP phone call.

C. Testing a constant conversation orhandset tone while roaming from area to area, or performing an active survey

D. Configuring DSCP-to-802.11e QoS maps on the handset for each access category.

正解：C 解答を投票する

出題：2

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

B. Use directional antennas to isolate the RF propagation

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

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

E. Use high-gain omnidirectional antennas to improve SNR

F. UseWPA2-Personal security for ease of deployment

正解：B,D 解答を投票する

出題：3

What threecipher suites are specified by the IEEE 802.11-2012 standard? (Choose 3)

A. Internet Protocol Security

B. Temporal Key Integrity Protocol

C. Counter Modewith CBC-MAC Protocol

D. Extensible Authentication Protocol

E. Wi-Fi Protected Access v1 and v2

F. Wired Equivalent Privacy

G. GCM with Galois Message AuthenticationCode (GMAC) Protocol

正解：B,C,F 解答を投票する

出題：4

What is alwaysrequired to establish a high quality 2.4 GHz RF link at a distance of 3 miles
(5 kilometers)?

A. Grid antennas ateach endpoint

B. A minimum antenna gain of 11 dBi at both endpoints

C. A Fresnel Zone that is at least 60% clear of obstructions

D. Minimum output power level of 2 W

正解：C 解答を投票する

出題：5

Which one of the following channels can be used for VHT transmissions?

A. 11

B. 48

C. 1

D. 6

正解：C 解答を投票する

出題：6

Which of the following frequency ranges are specified for use by IEEE 802.11 radios?
(Choose all that apply.)

A. 2.4000 - 2.4835 GHz

B. 5.470 - 5.725 GHz

C. 902 - 928 MHz

D. 5.725 - 5.875 GHz

E. 5.15 - 5.25 GHz

正解：A,B,D,E 解答を投票する

出題：7

Return Loss is the decrease of forward energy in a system when some of thepower is being reflected back toward the transmitter.
What will cause high return loss in an RF transmission system, including the radio, cables, connectors and antenna?

A. An impedance mismatch between components in the RF system

B. A Voltage Standing Wave Ratio (VSWR) of 1:1

C. High output power at the transmitter and use of a low-gain antenna

D. The use of cables longer than onemeter in the RF system

正解：A 解答を投票する

出題：8

What type of device often causes interference across 50% or more of the 2.4 GHz frequency band?

A. WIPS sensor

B. Wireless video camera

C. Microwave oven

D. Properly configured AP

E. Military radar

正解：C 解答を投票する

出題：9

What problems may exist for a multiple channel architecture (MCA) WLAN when its APs are all operating at full power (typically 100mW)? (Choose 2)

A. Wi-Fi enabled voice handsets with low transmit power can experience asynchronous downlink and uplink performance.

B. WLAN client stations can experience the hidden node problem when located near each other within the same cell.

C. The mismatched power between WLAN client stations and APs violates regulatory and
IEEE signal quality requirements.

D. APs operating in the 2.4 GHz band wouldprevent microwave ovens and analog video cameras from functioning.

E. Cell size may be too large, causing co-channel interference to adjacent cells and reducing system capacity.

正解：A,E 解答を投票する

出題：10

ABC Company is planning toinstall a new 802.11ac WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. ABC Company has hired you to perform the RF site survey. During the interview with the network manager, you are told that the newEthernet edge switches will support VoIP phones and 802.11 access points, both using 802.3 PoE.
After hearing this information, what immediate concerns do you note?

A. The power budget in the edgeswitches must be carefully planned and monitored based on the number of supported PoE devices.

B. If the switches are in optimal locations for VoIP phones, they are likely to be suboptimal locations for 802.11 APs.

C. VoIP phones and 802.11 access points should not be powered by the same edge switch dueto distortion.

D. The edge Ethernet switches should support Ether-channel to get the best results out of the network.

正解：A 解答を投票する

CWNA-106試験無料問題集「CWNP Certified Wireless Network Administrator 認定」