When performing a site survey for a Multiple Channel Architecture (MCA) system in a multi- tenant building with five floors, what aspect should you, as the site surveyor, keep in mind?
A. The RF interference caused by passing airplanes supporting on-board Wi-Fi should be a prime consideration.
B. The omni-directional antennas of the access points should beoriented parallel to the floor to maximize the coverage pattern across as many floors as possible.
C. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors.
D. The Fresnel Zone is completely blocked between floors so each floor is considered a separate site survey.
In a Wi-Fi client configuration utility, what feature is most likely to be user configurable?
A. 802.1p to WMM mappings
B. SNMPv3 Users
C. WMM-PS Dozing Interval
D. RADIUS Server IP Address
E. EAP Authentication Type
Which of the following frequency ranges are specified for use by IEEE 802.11 radios? (Choose all that apply.)
A. 902 - 928 MHz
B. 2.4000 ?2.4835 GHz
C. 5.15 ?5.25 GHz
D. 5.470 ?5.725 GHz
E. 5.725 ?5.875 GHz
When compared with legacyPower Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?
A. VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.
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 the WLAN transceiver to disable more components when in a low powerstate.
In a long-distance RF link, whatstatement about Fade Margin is true?
A. Fade Margin is an additional pad of signal strength designed into theRF system to compensate for unpredictable signal fading.
B. The Fade Margin of a long-distance radio link should be equivalent to the receiver's antenna gain.
C. A Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first Fresnelzone is clear of obstructions.
D. The Fade Margin is a measurement of signal loss through free space, and is a function of frequency and distance.
As you prepare for a site survey in a multi-floor corporate office, you have learned about several wireless devices that support connection-oriented, real-time applications. These applications are sensitive to service interruptions and require excellent signal quality, low latency, and low loss. For that reason, it is important to identify sources of RF interference as well as building characteristics that would cause RF blockage or dead spots.
What systems or environmental characteristics are most likely to cause interference or RF blockage and disrupt service for these applications? (Choose 2)
A. Microwave ovens
B. Narrow hallways
C. Elevator shafts
D. RFID chokepoints
E. Workspace dividers
In addition to coverage analysis results, what should be included in a site survey report to ensure WLAN users experience acceptable performance?
A. Application Layer protocol availability analysisresults
B. Layer 4 protocol availability analysis results
C. Capacity analysis results
D. WAN interface analysis results
When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?
A. After waiting a SIFS, all APs reply at the same time witha probe response.
B. After waiting a SIFS, a designated AP sends an ACK, and then replies with a probe response.
C. Each AP checks with the DHCP server to see if it can respond and then acts accordingly.
D. For each probe request frame, only one AP may reply with a probe response.
E. Each AP responds in turn after preparing a probe response and winning contention.
What statements accurately describe the RF cables and connectors that are used in an 802.11 WLAN system? (Choose 3)
A. RF cables have upper and lower frequency range specifications.
B. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.
D. Every RF connector causes insertion loss.
E. Large diameter RF cables cause greater loss than smalldiameter cables.
Which answer correctly completes the following sentence?
The WMM certification, created by the Wi-Fi Alliance, is based on the ___________ coordination function with support for ___________ QoS priority.
A. Hybrid, contention-based
B. Point, scheduled
C. Dynamic, distributed
D. Distributed,trigger-and-delivery
E. Enhanced, contention-free
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