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

出題：1

You recently purchased four laptops containing dual-band 802.11ac adapters. The laptops can connect to your
2.4 GHz network, but they cannot connect to the 5 GHz network. The laptops do not show the 5 GHz SSIds, which are different than the 2.4 GHz SSIDs. Existing devices can connect to the 5 GHz SSIDs with no difficulty. What is the likely problem?

A. DoS attack

B. Faulty drivers

C. Interference from non-Wi-Fi sources

D. Interference from other WLANs

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：2

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：3

A WLAN is implemented using wireless controllers. The APs must locate the controllers when powered on and connected to the network. Which one of the following methods is commonly used to locate the controllers by the APs?

A. SNMP

B. GRE

C. NTP

D. DHCP

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：4

When an ACK frame is not received by the transmitting STA, what is assumed?

A. The receiver processed the frame, but did not respond with an ACK frame because 802.11w is enabled

B. The frame was not delivered and must be retransmitted

C. The receiver is offline

D. The frame was correctly delivered

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：5

Which IEEE 802.11 physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS?

A. VHT (802.11ac)

B. HT (802.11n)

C. DSSS (802.11-Prime)

D. OFDM (802.11a)

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

What statement about 802.11 WLAN performance is true?

A. In most WLANs, no special skill or tuning is required to get peak performance

B. WLANs perform better as more wireless clients connect with each AP

C. To get the best performance out of an AP, you should disable data rates of 72 Mbps and lower

D. In modem networks, both centralized and distributed data forwarding work well for most standard office deployments

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：7

Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?

A. Grid and sector

B. Dipole and yagi

C. Dish and grid

D. Patch and panel

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：8

Which one of the following channels can be used for VHT transmissions according to the 802.11 specification?

A. 11

B. 1

C. 6

D. 144

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

You are deploying a WLAN monitoring solution that utilizes distributed sensor devices. Where should sensors be deployed for best results? Choose the single best answer.

A. Every 5 meters and alongside each AP

B. In critical areas where WLAN performance must be high

C. Above the plenum on each floor

D. In switching closets

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：10

You are troubleshooting a problem with a new 802.11ax AP. While the AP supports four spatial streams, most clients are only achieving maximum data rates of 150 Mbps. What is the likely cause?

A. Non-Wi-Fi interference in the channel

B. Contention caused by an overlapping BSS

C. The clients are only two stream 802.11ax clients

D. The clients are 802.11n devices

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)

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