CWNA-108試験無料問題集（123題）「CWNP Certified Wireless Network Administrator 認定」

出題：1

When using a spectrum to look for non Wi-Fi interference sources, you notice significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the desktop area of a users workspace, but the interference disappears quickly after just 2 meters. What is the most likely cause of this interference?

A. Excess RF energy from a nearby AP

B. Bluetooth devices in the user's work area

C. USB 3 devices in the user's work area

D. Unintentional radiation from the PC power supply

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：2

What 802.11 network configuration would result in multiple stations broadcasting Beacon frames with the same BSSID but with different source addresses?

A. A single AP supports multiple BSSs with different SSIDs.

B. Multiple APs have been loaded with the same configuration from an image file.

C. An SCA network is in use.

D. An IBSS is used instead of a BSS.

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：3

You are using a tool that allows you to see signal strength for all Aps in the area with a visual representation. It shows you SSIDs available and the security settings for each SSID. It allows you to filter by frequency band to see only 2.4 GHz networks or only 5 GHz networks. No additional features are available.
What kind of application is described?

A. WLAN scanner tool

B. Site survey utility

C. Protocol analyzer

D. Spectrum analyzer

正解：A 解答を投票する

出題：4

A client STA must choose the best AP for connectivity. As part of the evaluation, it must verify compatible data rates. What can the client STA use to verify that an AP supports the same data rates that it supports?

A. Data frames sent between the AP and current clients STAs

B. Probe request frames transmitted by other client STAs

C. Authentication frames transmitted by the other client STAs

D. Beacon frames transmitted by the AP

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：5

What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?

A. OFDM modulation is used only in 5 GHz 802.11 transmissions.

B. OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.

C. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.

D. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：6

You are attempting to explain RF shadow and how it can cause lack of coverage. What common building item frequently causes RF shadow and must be accounted for in coverage plans?

A. Cubicle partitions

B. Elevators

C. Carpeted floors

D. Wooden doors

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：7

Which unit of measurement, as formally defined, is an absolute unit that is used to quantify received signal power levels on a logarithmic scale?

A. dBi

B. SNI

C. dBm

D. VSWR

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：8

You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but is does not even see 5 GHz APs. While evaluating the issue, you determine that this problem is happening for all of the laptops of this model in the organization. Several other tablets connect on channel 48 and channel
52 in the same work areas. What is the likely problem?

A. The access points are configured to disallow 5 GHz.

B. The clients are configured to use WPA and 5 GHz channels only support WPA2.

C. The antennas in the laptop have insufficient gain to detect the 5 GHz signals.

D. The client drivers are faulty and should be upgraded.

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：9

What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?

A. FCS errors in frames transmitted to and from the AP.

B. Throughput speed in Mbps.

C. Signal strength of AP beacons received.

D. PING latency when testing against an Internet server.

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：10

When implementing PoE, what role is played by a switch?

A. PSE

B. PD

C. Midspan injector

D. Power splitter

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

CWNA-108試験無料問題集「CWNP Certified Wireless Network Administrator 認定」