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問題 #1

What exhibit reflects the recommended life-cycle steps for successfully designing and deploying an enterprise WLAN from start to finish? (Choose 2)

A. Solution 5
B. Solution 2
C. Solution 3
D. Solution 1
E. Solution 4

問題 #2

Why does a frame transmitted at 1 Mbps have a greater usable range than the same frame transmitted at 54 Mbps?

A. Lower data rate RF transmissions travel at higher speeds and are less likely to experience collisions.
B. Free space path loss causes greater signal dispersion for higher rate transmissions.
C. To improve reliability, 802.11 STAs increase transmit power as the signaling rate decreases.
D. Frames sent at higher data rates are also sent at higher power levels and are therefore more prone to collisions and multipath.
E. Receiver sensitivity requirements are lower for frames transmitted with less complex modulation and coding.

問題 #3

What is the purpose of DHCP Option 43, and how is it used with WLANs?

A. It integrates a DHCP server with AAA servers and user databases to dynamically assign IP addresses to client devices. During 802.1X, the AAA server uses Option 43 to notify the DHCP server what IP pool the client's address should be drawn from.
B. It provides clients with a temporary IP address on a restricted VLAN until 802.1X authentication is completed. Then the client receives its long-term IP address.
C. It provides IP address bindings for specific network nodes that require long-term IP address assignments. WLAN controllers are configured to use Option 43 to receive long-term IP address leases that are centrally managed with DHCP.
D. It supports vendor-specific IP address attributes for node discovery purposes. APs use Option 43 with vendor class identifiers to obtain the IP address of a centralized WLAN controller.

問題 #4

After surveying for the ideal mounting locations for APs, you have been asked to compromise RF propagation optimization due to aesthetic concerns raised by your customer. In the end, you've decided to mount the APs in the ideal locations and paint the APs so they go unnoticed in the environment.
What is a valid recommendation or consideration when painting APs? (Choose 2)

A. Most AP models for indoor environments come in a variety of form factors and colors. Painting is never recommended.
B. Painting APs always introduces a fire and gas emissions hazard and should be avoided for all indoor APs.
C. Always use paints with metallic dye in them to prevent potential RF propagation impact.
D. Painting APs may void the product manufacturer's warranty.
E. Do not paint the notification LEDs on the AP, but configure them to be dim or turned off altogether until troubleshooting is required.

問題 #5

In a large enterprise (5000+ wireless users), by what recommended methods are IP addresses and VLANs assigned to different clients associated to the same AP? (Choose 3)

A. Upstream AAA servers dynamically assign VLANs to each user or group profile
B. Each BSSID is assigned a unique VLAN to help manage the size of broadcast domains on the wired network
C. Multiple VLAN pools are designated for an SSID and user IP addresses are selected in a round-robin fashion from the associated pools.
D. Each SSID is mapped to a static VLAN assignment
E. In a centralized data forwarding model, clients automatically receive an IP address on the native VLAN of the AP's Ethernet access port.
F. Radio signal metrics (RSSI, SNR, etc.) of WLAN clients are triangulated for location-based VLAN assignment during association
G. The configuration profile of the client supplicant is hard-coded with a VLAN ID.

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