質問 1：
What action should be taken after implementing a WLAN based on the design developed from the site survey process?
A. Post-installation survey
B. Design the infrastructure services
C. Requirements analysis
D. Gathering facility documentation
正解：A
質問 2：
During a post-deployment verification, you are requested to troubleshoot an area where users are experiencing poor throughput. They are using data communication only, mainly from laptops. You captured the frame showing an incorrect FCS. This frame is typical of those that were captured by the analyzer.
What does this frame reveal about the RF network in this area?
A. Multipath or excessive collisions seem to be an issue in this area
B. Contention Free is in place in this network, which may starve some non-QoS stations from access
C. The AP seems to be too far to provide enough coverage to this area
D. One station seems to be streaming video, thus may have reserved significant bandwidth via admission control
正解：A
質問 3：
A wireless engineer from your company performed a site survey in an office building where a wireless network extension was needed. He reports that while performing a Layer 1 sweep near a meeting room full of people, he detected RF activity with a very low duty cycle. He is unsure how to interpret what he recorded to determine its impact on a future Wi-Fi network.
What is true about this RF environment and its potential impact on the WLAN?
A. The signal has a low duty cycle and should not be of major impact on the wireless network.
B. The signal is alternating between peaks (high interference level) and valleys (low interference level).
The network channel design must be built to avoid the affected peak frequencies.
C. The signal is typical of a high radio card background noise. It shows that the card used for the Layer 1 sweep should be replaced and the Layer 1 sweep re-done.
D. The signal affects the entire spectrum and will render the wireless network unusable. It must be located and removed.
正解：A
質問 4：
An associated STA detects a new BSS with the same SSID as the STA's current BSS. The new BSS uses a different IP subnet than the current BSS. If the STA is configured to use 802.1X/EAP preauthentication, what is likely to occur?
A. The STA will attempt to preauthenticate and succeed if IP Mobility is enabled on the AP or WLAN controller.
B. The STA will attempt to preauthenticate, but fail because the new BSS uses a different data-link broadcast domain.
C. The STA will not attempt to preauthenticate because the new BSS uses a different IP subnet.
D. The STA will attempt to preauthenticate and succeed if DHCP is supported on the new subnet.
正解：B
質問 5：
What might a PoE injector be used for during a site survey?
A. to power APs
B. to act as a WLAN client
C. to adjust signal strength
D. to test throughput
正解：A
質問 6：
What commonly causes a client-to-AP link imbalance?
A. The AP's antenna gain is lower than the client's antenna gain
B. The AP's transmit power is significantly lower than the client's transmit power
C. The client's transmit power is significantly lower than the AP's transmit power
D. The client's antenna gain is lower than the AP's antenna gain
正解：C
What action should be taken after implementing a WLAN based on the design developed from the site survey process?
A. Post-installation survey
B. Design the infrastructure services
C. Requirements analysis
D. Gathering facility documentation
正解：A
質問 2：
During a post-deployment verification, you are requested to troubleshoot an area where users are experiencing poor throughput. They are using data communication only, mainly from laptops. You captured the frame showing an incorrect FCS. This frame is typical of those that were captured by the analyzer.
What does this frame reveal about the RF network in this area?
A. Multipath or excessive collisions seem to be an issue in this area
B. Contention Free is in place in this network, which may starve some non-QoS stations from access
C. The AP seems to be too far to provide enough coverage to this area
D. One station seems to be streaming video, thus may have reserved significant bandwidth via admission control
正解：A
質問 3：
A wireless engineer from your company performed a site survey in an office building where a wireless network extension was needed. He reports that while performing a Layer 1 sweep near a meeting room full of people, he detected RF activity with a very low duty cycle. He is unsure how to interpret what he recorded to determine its impact on a future Wi-Fi network.
What is true about this RF environment and its potential impact on the WLAN?
A. The signal has a low duty cycle and should not be of major impact on the wireless network.
B. The signal is alternating between peaks (high interference level) and valleys (low interference level).
The network channel design must be built to avoid the affected peak frequencies.
C. The signal is typical of a high radio card background noise. It shows that the card used for the Layer 1 sweep should be replaced and the Layer 1 sweep re-done.
D. The signal affects the entire spectrum and will render the wireless network unusable. It must be located and removed.
正解：A
質問 4：
An associated STA detects a new BSS with the same SSID as the STA's current BSS. The new BSS uses a different IP subnet than the current BSS. If the STA is configured to use 802.1X/EAP preauthentication, what is likely to occur?
A. The STA will attempt to preauthenticate and succeed if IP Mobility is enabled on the AP or WLAN controller.
B. The STA will attempt to preauthenticate, but fail because the new BSS uses a different data-link broadcast domain.
C. The STA will not attempt to preauthenticate because the new BSS uses a different IP subnet.
D. The STA will attempt to preauthenticate and succeed if DHCP is supported on the new subnet.
正解：B
質問 5：
What might a PoE injector be used for during a site survey?
A. to power APs
B. to act as a WLAN client
C. to adjust signal strength
D. to test throughput
正解：A
質問 6：
What commonly causes a client-to-AP link imbalance?
A. The AP's antenna gain is lower than the client's antenna gain
B. The AP's transmit power is significantly lower than the client's transmit power
C. The client's transmit power is significantly lower than the AP's transmit power
D. The client's antenna gain is lower than the AP's antenna gain
正解：C
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