CWNA-107試験無料問題集（180題）「CWNP Certified Wireless Network Administrator 認定」

出題：1

What term correctly completes the following sentence?
802.11a/b/g used a mandatory 800ns guard interval. 802.11n introduced an optional short 400ns guard interval. Guard intervals (GI) are necessary in OFDM to reduce the likelihood of interference between two consecutive ____________.

A. Bytes

B. Frames

C. Bits

D. Packets

E. Segments

F. Symbols

正解：F 解答を投票する

出題：2

What factor is likely to cause the least impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS?

A. Implementation of several other clients in the same BSS using 802.11g radios.

B. RF interference from more than 10 nearby Bluetooth transmitters

C. Implementation Fast BSS Transition (FT) for roaming

D. Increasing or decreasing the number of spatial streams in use by the client station and AP

正解：A 解答を投票する

出題：3

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

A. PO

B. PSE

C. Midspan injector

D. Power splitter

正解：B 解答を投票する

出題：4

ABC Company has just purchased a 6 dBi patch antenna. After performing some tests with the 6 dBi antenna, they have concluded that more antenna gain is needed to cover their outdoor courtyard. When choosing an antenna with higher gain, what other antenna characteristic will also always change?

A. Beamwidth

B. Maximum input power

C. Fresnel Zone size

D. VSWR Ratio

E. Impedance

正解：A 解答を投票する

出題：5

What feature(s) are most likely to be supported by 802.11 enterprise-class WLAN controllers?
(Choose 4)

A. IGMP snooping

B. 802.1p and DSCP QoS

C. BGP and Frame Relay

D. Captive web portals

E. Link aggregation / port trunking

正解：A,B,D,E 解答を投票する

出題：6

What item is essential for performing a manual RF site survey for a warehouse facility?

A. A facility map with an explanation of applications used in each area

B. Low-gain omni antennas for APsmounted high on warehouse ceilings

C. Predictive site survey software that supports highly directional antennas

D. I-Beam mounting kits for hanging temporary access points

正解：A 解答を投票する

出題：7

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

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

正解：D 解答を投票する

出題：8

Which one of the following channels can be used for VHT transmissions?

A. 1

B. 13

C. 7

D. 44

正解：D 解答を投票する

出題：9

Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?

A. Proximity to potential access points

B. Signal strength of access point beacons received

C. Average round trip time to reach the IP router

D. Retry rate of probe request and response frames

E. Average round trip time to reach the Internet DNS server

正解：B 解答を投票する

出題：10

When performing a validation survey for a Multiple Channel Architecture (MCA) system in a multi- tenant building with five floors, what aspect should you, as the surveyor, keep in mind?

A. The omni-directional antennas of the access points should be oriented parallel to the floor to maximize the coverage pattern across as many floors as possible

B. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors

C. The Fresnel Zone is completely blocked between floors so each floor is considered a separate site survey

D. The RF interference caused by passing airplanes supporting on-board Wi-Fi should be a prime consideration

正解：B 解答を投票する

CWNA-107試験無料問題集「CWNP Certified Wireless Network Administrator 認定」