최신 CWNA-108 무료덤프 - CWNP Certified Wireless Network Administrator

문제1

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 client drivers are faulty and should be upgraded.

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

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

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

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제2

The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz). What is the center frequency of channel 4?

A. 2.427

B. 2.417

C. 2.413

D. 2.422

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제3

When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?

A. Authenticated and Unassociated

B. Authenticated and Associated

C. Transitional

D. Unauthenticated and Unassociated

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제4

What frame type is used to reserve the wireless medium for the transmission of high data rate frames that may not be understood by all clients connected to the BSS?

A. PS-Poll

B. Beacon

C. RTS

D. ACK

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제5

You have implemented an 802.11ax WLAN for a customer. All APs are four stream HE APs. The customer states that it is essential that most of the clients can use the OFDMA modulation scheme. What do you tell the customer?

A. If the devices support 802.11ac, they can be updated to support OFDMA through driver upgrades

B. OFDMA is an optional feature of 802.11ax and most APs don't even support it

C. The clients that must support OFDMA must also be upgraded to 802.11ax

D. All 5 GHz PHYs use OFDM modulation, so you will achieve OFDMA everywhere in 5 GHz

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제6

You are implementing a multi-AP WLAN and fast secure roaming is essential. Which one of the following methods is an IEEE 802.11 standard method for fast roaming?

A. Load balancing

B. FT

C. Band steering

D. OKC

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제7

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

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

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

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

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

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제8

You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to see the activity that is generating.
What common spectrum analyzer view should you use for this analysis?

A. Waterfall/Spectrogram

B. Clients

C. Real-time FFT

D. APs

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제9

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. Spectrum analyzer

B. Site survey utility

C. WLAN scanner tool

D. Protocol analyzer

정답: C

문제10

What is the most effective method for testing roaming in relation to 802.11 VoIP handsets?

A. Use a spectrum analyzer to monitor RF activity during a VoIP call.

B. Place a call with the handset and move around the facility to test quality during roaming.

C. Use a protocol analyzer to capture the traffic generated when a laptop roams.

D. Use the built-in roaming monitor built into all VoIP handsets.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

최신 CWNA-108 무료덤프 - CWNP Certified Wireless Network Administrator

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