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

出題：1

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：2

Your consulting firm has recently been hired to complete a site survey for a company desiring an indoor coverage WI-AN. Your engineers use predictive design software for the task, but the company insists on a pre-design site visit.
What task should be performed as part of the pre-design visit to prepare for a predictive design?

A. Install at least one AP on each side of the exterior walls to test for co-channel interference through these walls

B. Evaluate the building materials at the facility and confirm that the floor plan documents are consistent with the actual building

C. Test several antenna types connected to the intended APS for use in the eventual deployment

D. Collect information about the company's security requirements and the current configuration of their RADIUS and user database servers

正解：B 解答を投票する

出題：3

In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping?

A. 4 and 6

B. 2 and 8

C. 1 and 5

D. 7 and 11

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：4

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：5

What cipher suite is specified by the 802.11-2016 standard and is not deprecated?

A. Temporal Key Integrity Protocol

B. Counter Mode with CBC-MAC Protocol

C. Extensible Authentication Protocol

D. Wired Equivalent Privacy

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

ABC Company is planning to install 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 new Ethernet 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. VoIP phones and 802.11 access points should not be powered by the same edge switch due to distortion.

B. The power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.

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

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

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

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：8

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)

出題：9

In a long-distance RF link, what statement about Fade Margin is true?

A. A Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first Fresnel zone is clear of obstructions.

B. The Fade Margin of a long-distance radio link should be equivalent to the receiver's low noise filter gain.

C. Fade Margin is an additional pad of signal strength designed into the RF system to compensate for unpredictable signal fading.

D. The Fade Margin is a measurement of signal loss through free space and is a function of frequency and distance.

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 compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

A. VHT TXOP power save allows the WLAN transceiver to disable more components when in a low power state.

B. VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.

C. Legacy Power Save mode was removed in the 802.11ac amendment.

D. VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.

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」