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

出題：1

You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not use and the controller is located at 10.10.10.81/24 while the AP is on the 10.10.16.0/24 network. What should be inspected to verify proper configuration?

A. AP hosts file

B. NTP

C. BOOTH

D. DNS

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：2

A string of characters and digits is entered into an AP and a client STA for WPA2 security. The string is 8 characters long. What is this string called?

A. MSK

B. PSK

C. WEP key

D. Passphrase

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 a small business wireless network consultant and provide WLAN services for various companies. You receive a call from one of your customers stating that their laptop computers suddenly started experiencing much slower data transfers while connected to the WLAN. This company is located in a multi-tenant office building and the WLAN was designed to support laptops, tablets and mobile phones. What could cause a sudden change in performance for the laptop computers?

A. The antennas in the laptops have been repositioned.

B. A few of your customer's users have Bluetooth enabled wireless headsets.

C. The sky was not as cloudy that day as it typically is and the sun also radiates electromagnetic waves.

D. A new tenant in the building has set their AP to the same RF channel that your customer is using.

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

What statement about 802.3, Clause 33 Power over Ethernet is true?

A. Only endpoint PSEs are supported.

B. When using CAT5 cabling, you increase the maximum draw available to the PD over that available with CAT6.

C. Only midspan PSEs are supported.

D. The lowest voltage drop is achieved when using CAT6 cable instead of Cat5 or CAT5e.

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

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：6

What statement about the IEEE 802.11-2016 QoS facility is true?

A. 802.11 control frames are assigned to the 802.11 EF priority queue.

B. Four 802.1p user priorities are mapped to eight 802.11 transmit queues.

C. 802.11 QoS is achieved by giving high priority queues a statistical advantage at winning contention.

D. When the Voice queue has frames awaiting transmission, no data will be transmitted from the Best Effort queue.

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：7

A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss. If the cable is connected to an antenna with 9dBi gain, what is the EIRP at the antenna element?

A. 10 dBm

B. 23 dBm

C. 26 dBm

D. 13 dBm

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：8

You support a WLAN using dual-band 802.11ac three stream access points. All access points have both the
2.4 GHz and 5 GHz radios enabled and use 40 MHz channels in 5 GHz and 20 MHz channels in 2.4 GHz. A manager is concerned about the fact that each access point is connected using a 1 Gbps Ethernet link. He is concerned that the Ethernet link will not be able to handle the load from the wireless radios. What do you tell him?

A. His concern is valid and the company should upgrade all Ethernet links to 10 Gbps immediately.

B. Due to 802.11 network operations and the dynamic rates used by devices on the network, the two radios will likely not exceed the 1 Gpbs Ethernet link.

C. His concern is invalid because the AP will compress all data before transmitting it onto the Ethernet link.

D. His concern is valid and the company should immediately plan to run a second 1 Gbps Ethernet link to each AP.

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：9

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：10

You are installing an AP to be used by 27 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for this AP and why?

A. Channel 6, because it is always best to use this channel

B. A 5 GHz channel, because channels 1 and 6 are 2.4 GHz channels they have no impact on the decision

C. Channel 1, because it is best to use the channel with the lowest frequency

D. Channel 11, because channels 1 and 6 are in use nearby

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)

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