Which CleanAir feature is used to avoid channels with interference from devices such as outdoor bridges and microwave ovens?

• A.Persistent Device Avoidance
• B.Spectrum Analysis
• C.Air Quality Index
• D.Channel Utilization

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Refer to the exhibit. A WLC is deployed at a branch location to facilitate secure client connectivity.
A network engineer configures one WLAN using WPA2 Personal passphrase and activates ASCII format key to align with company security policies. Which configuration enables client authentication for this WLAN?

• A.no security wpa akm dot1x
• B.client dhcp-proxy enable
• C.security wpa wpa2 ciphers aes
• D.security wpa akm psk set-key ascii 0

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What is the primary modulation technology used by 802.11ax in wireless communications?

• A.frequency hopping spread spectrum
• B.direct sequence spread spectrum
• C.orthogonal frequency-division multiple access
• D.Quadrature Amplitude Modulation OFDMA

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A retail store is setting up guest Wi-Fi on a Cisco 9800 WLC. The IT team has these requirements:
When a guests associates, they are prompted for web authentication.
After login, traffic is restricted to internet-only access.
Guest WLAN must be available throughout all sales floors.
Guest WLAN must not impact the existing corporate WLAN.
Guest SSID must not require a password.
Which set of configurations must the IT team deploy to meet the requirements?

• A.WPA2-Enterprise authentication on the guest WLAN and use dynamic VLAN assignment.
• B.Local web authentication on the guest SSID and apply ACLs to allow all traffic except FTP and SSH from the guest WLAN.
• C.Central web authentication on the guest WLAN and apply an ACL that denies traffic between devices that use the internal subnets.
• D.MAC filtering on the guest WLAN and enable client exclusion for segregation.

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A wireless network uses RRM to optimize radio performance dynamically. Which two parameters are automatically adjusted by RRM?

• A.DNS and DHCP timers
• B.Channel assignment and transmit power
• C.VLAN tagging and QoS marking
• D.NAT translation and routing metrics

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