QUESTION: 25

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

Legacy Power Save mode was removed in the 802.11ac amendment.
VHT TXOP power save allows the WLAN transceiver to disable more components when in a low power state.
VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.
VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.

Answer(s): C

QUESTION: 26

What 802.11 network configuration would result in multiple stations broadcasting Beacon frames with the same BSSID but with different source addresses?

Multiple APs have been loaded with the same configuration from an image file.
A single AP supports multiple BSSs with different SSIDs.
An IBSS is used instead of a BSS.
An SCA network is in use.

Answer(s): C

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QUESTION: 27

What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?

Signal strength of AP beacons received.
PING latency when testing against an Internet server.
Throughput speed in Mbps.
FCS errors in frames transmitted to and from the AP.

Answer(s): A

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Lynne runs a small hotel, and as a value added service for his customers he has implemented a Wi-Fi hotspot. Lynne has read news articles about how hackers wait at hotspots trying to take advantage of unsuspecting users. He wants to avoid this problem at his hotel.

What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on his customers’ wireless computers?

Enable station-to-station traffic blocking by the access points in the hotel.
Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches.
Implement an SSL VPN in the WLAN controller that initiates after HTTPS login.
Require EAP-FAST authentication and provide customers with a username/password on their receipt.

Answer(s): A

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QUESTION: 25

QUESTION: 26

QUESTION: 27

QUESTION: 28