You have been hired to install an outdoor wireless network for a small city. The design must provide 360 degrees of coverage from a central location and at least 33 Mb/s of aggregate bandwidth for clause 18 radio clients. How do you design this solution?

• A. One high-gain omni-directional antenna
• B. Three or more Yagi antennas installed in a circular pattern on the same supporting structure
• C. Three or more patch antennas installed in a circular pattern on the same supporting structure
• D. Three or more sector array antennas installed in a circular pattern on the same supporting structure
• E. Three or more parabolic dish antennas installed in a circular pattern on the same supporting structure

Which of the below statements is true about Radio Resource Management Neighbor messages? (Choose three.)

• A. they are transmitted at the highest data rate
• B. they are transmitted every 60 seconds
• C. they are transmitted on all serviced channels
• D. they are transmitted at maximum power
• E. they are transmitted at the lowest supported data rate
• F. they are transmitted at minimum power

When designing a WLAN network to support both voice and context-aware services, which set of design principles should you follow?

• A. A context-aware site survey usually recommends deploying more APs because of the requirement for perimeter coverage and four corners of a floor. However, voice deployment recommendations should be adopted because of the mission-critical nature of voice traffic.
• B. A voice and context-aware site survey can be one survey, but voice deployment recommendations take precedence over context-aware deployment recommendations. Context-aware surveys usually recommend too many APs, and APs need to be in local mode because APs in monitor mode spend too much time (2 sec) on each channel, listening for rogue activities, and often miss client or tag beaconing.
• C. A voice and context-aware site survey can be one survey, but context-aware deployment recommendations take precedence over voice deployment recommendations because context-aware services require at least four APs to hear clients or tags at -75 dBm. An AP can provide adequate coverage to voice clients with acceptable SNR.
• D. A voice and context-aware site survey can be one survey, but voice deployment recommendations take precedence over context-aware deployment recommendations because the context-aware survey usually recommends too many APs and might introduce too much co-channel interference, negatively affecting voice quality.
• E. A voice and context-aware site survey can be one survey, and both voice and context-aware deployment recommendations can be implemented. APs that are not serving clients will be in monitor mode.

You want to enable multicast video streaming supporting multicast for both wired and wireless clients. Which two statements are true regarding the design of the network to deliver multicast streams over wireless? (Choose two.)

• A. IGMPv3 is required to provide reliable transmission for multicast streams. The default
  802.11 retransmission mechanism will prioritize WMM queues by means of the 802.11e UP value.
• B. Multicast and broadcast packets cannot be managed because wireless clients will use the lowest mandatory rate supported by each AP to send and receive traffic.
• C. Multicast over wireless relies on a TCP retransmission mechanism for reliable transmission, which explains why multicast presents a unique challenge for media traffic because multicast video is mostly UDP traffic.
• D. A wireless network does not provide reliable transmission for multicast packets and does not classify queues or provision QoS.
• E. Multicast and broadcast packets do not send out ACK messages, and all packets are being delivered via best effort.