When installing APs on high ceilings, what should be the most common PPE to be used?
A. Hardhat, high visibility vest and body belt
B. Glasses, gloves and jacket
C. Clean suits, masks and glasses
D. Clean suits, gloves and jacket
What limitation exists when WMM is not enabled on an 802.11n WLAN?
A. 802.11 QoS will not be available
B. The maximum channel-width will be 20MHz
C. EDCA values will change
D. Only two ACs will be available
ABC Company has a WLAN controller with 10 controller-based APs; the Voice SSID is configured for centralized data forwarding. Each AP is connected to an access port on a layer-2 Ethernet switch. Each layer-2 switch is uplinked to a single layer-3 core Ethernet switch. The WLAN controller is connected directly to the layer-3 core Ethernet switch. Layer-3 tunnels are created between all controller-based APs and the WLAN controller. A voice server is connected to the layer-3 Ethernet switch.
When a voice-enabled QoS STA sends an IP data packet to a voice server in this scenario, the DSCP value carried in the STA's IP data packet gets mapped to what and by which device?
A. The DSCP value is mapped to an IEEE 802.1Q priority tag value by the WLAN controller.
B. The DSCP value is mapped to the DSCP value in the encapsulating IP header by the layer-3 switch.
C. The DSCP value is mapped to an IEEE 802.1p (802.1D-2004) UP value by the access point.
D. The DSCP value is mapped to an IEEE 802.1Q VLAN tag by the access point.
What differences exist between VLANs in wireless and wired domains?
Response:
A. Wireless VLANs are not effective for segmenting the available services and network permissions available to clients. Wired VLANs are effective for this purpose.
B. Wireless VLANs are never carried in 802.11 frames that cross the wireless medium. VLAN identifiers are always carried in Ethernet frames to indicate the proper VLAN.
C. Wireless VLANs do not always segment traffic into separate broadcast domains on the wireless medium. Wired VLANs do segment broadcast domains on the wired network.
D. Wireless VLANs are not an effective way to utilize a single set of infrastructure equipment to provide different services to different client groups. Wired VLANs are effective for this purpose.
You have performed a validation site survey after deploying a WLAN infrastructure that is an All-Wireless-Office. One specific application of your customer is experiencing delay when using the application after moving from wired connectivity. After your validation, you realized that all APs are using 80 MHz channel- widths instead of 20 MHz on the 5 GHz band, as it was designed.
What can be done to resolve the delay on this application?
A. APs should be using 160 MHz channel-widths to get more throughput
B. Reconfigure to use 20 MHz channel-widths, so reuse of the frequency is more effective
C. Power-off half of the APs to reduce CCI and keep 80 MHz channel-widths
D. Add more APs using 80 MHz channel-widths
A cable with 2.5 dB of loss is used to measure the return loss of an antenna. The measured value in-band is shown to be larger than 20 dB. What is the actual return loss of the antenna, and is it considered to be a reasonable value?
Response:
A. Larger than 15 dB and yes
B. Larger than 15 dB and maybe
C. Larger than 17.5 dB and yes
D. Larger than 17.5 dB and no
What advantages are provided by per-user PSKs when compared with ESS-wide PSKs?(Choose all that apply.)
Response:
A. Per-user PSKs allow easier user-based access control with WPA/WPA2-Personal security.
B. Per-user PSKs are easier to manage if a PSK is compromised or an employee leaves a company.
C. Per-user PSKs are standardized and certified by the Wi-Fi Alliance.
D. Per-user PSKs are more secure than ESS-wide PSKs because they support mutual authentication.
A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum. What should you do to meet this requirement?
A. Lock the AP inside of a metal box
B. Place the APs in between walls and I-beams
C. Use an 802.11b AP, so it looks old enough to be in a museum
D. Use a plastic cover that could blend in with the environment
In 802.11, clients are required to be calibrated for RSSI and SNR reporting to:
A. Within +/5 dB
B. Within +/3 dB
C. Within +/1 dB
D. Within +/0.5 dB
E. Within +/0.25 dB
F. No specific value
Before performing a pre-deployment passive RF survey of a new deployment using survey mapping software, which of the following must be performed?
A. Determining AP transmit power
B. Scaling the map
C. Selecting antennas
D. Checking client DTPC settings
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