A dual-band 802.11ac AP must be powered by PoE. As a class 4 device, what power level should be received at the AP?
A. 30 W
B. 25.5 W
C. 15.4 W
D. 12.95 W
You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not use and the controller is located at 10.10.10.81/24 while the AP is on the 10.10.16.0/24 network. What should be inspected to verify proper configuration?
A. NTP
B. BOOTH
C. DNS
D. AP hosts file
What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?
A. Signal strength of AP beacons received.
B. PING latency when testing against an Internet server.
C. FCS errors in frames transmitted to and from the AP.
D. Throughput speed in Mbps.
A WLAN is implemented using wireless controllers. The APs must locate the controllers when powered on and connected to the network. Which one of the following methods is commonly used to locate the controllers by the APs?
A. DHCP
B. GRE
C. NTP
D. SNMP
You are planning for PoE in a standard office deployment. Which one of these devices is least likely to be a PoE PD?
A. Video camera
B. Access point
C. VoIP phone
D. Ethernet switch
You are configuring an access point to use channel 128. What important fact should be considered about this channel?
A. It is a 22 MHz channel so it will overlap with the channels above and below it
B. It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used
C. It is a channel that is unsupported by most access points D. It is a channel that likely requires DFS when used
In addition to coverage analysis result, what should be included in a post-deployment site survey report to ensure WLAN users experience acceptable performance?
A. Layer 4 protocol availability analysis results
B. Application Layer protocol availability analysis results
C. Capacity analysis results
D. WAN interface analysis results
You are troubleshooting a WLAN problem and you suspect hidden node as the cause. What should you look for in a protocol analyzers?
A. Frames with the HN bit set to 1
B. Frames with the retry bit set to 0
C. Frames transmitted from the AP without acknowledgement
D. Retransmitted frames from multiple STAs at higher rates than other STAs
You are attempting to locate the cause of a performance problem in two WLAN cells in a mostly overlapping coverage area. You note that one AP is on channel 1 and the other is on channel 2. When you document your findings, what term do you use to describe the problem in this configuration?
A. Bluetooth interference
B. Non-Wi-Fi interference
C. CCI
D. ACI
You are installing an AP to be used by 23 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for this AP and why?
A. Channel 6, because it is always best to use this channel
B. A 5 GHz channel, because channels 1 and 6 are 2.4 GHz channels they have no impact on the decision
C. Channel 1, because it is best to use the channel with the lowest frequency
D. Channel 11, because channels 1 and 6 are in use nearby
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