Question 71
An engineer must configure the virtual IP address on multiple controllers in a mobility group. Which rule must the engineer follow to ensure proper roaming?
A. Ensure that the DNS entry is tied to the virtual IP address of the WLC.
B. Use a unique IP address for each WLC.
C. Ensure that the DNS Host Name field is defined.
D. Use the same IP address for each WLC.
Question 72
Guest anchoring is configured for a newly created SSID for a company. It has been noticed that the mobility tunnels are not up and that MPING fails from your foreign WLC to the anchor WLC. What is the reason that it is failing?
A. A rule is needed at the firewall to allow UDP port 16666 for communication to work.
B. A rule is needed at the firewall to allow UDP port 97 for communication to work.
C. A rule is needed at the firewall to allow TCP port 97 for communication to work.
D. A rule is needed at the firewall to allow TCP port 16666 for communication to work.
Question 73
Multiple WLCs are implemented in a high-availability configuration in a mobility group. APs are deployed with only a primary controller assigned. By default, which mobility group member controller do the orphaned APs join in the event of a failed controller?
A. controller with the most available AP free license capacity
B. controller with the lowest percent of associated APs per license capacity
C. controller with the least CPU utilization over the last reporting period
D. controller with the least number of associated APs
Question 74
An engineer must ensure that the wireless network accomplishes fast, secure roaming by way of caching keys on the APs. Which key caching mechanism is enabled by default on a Cisco AireOS WLC?
A. SKC
B. OKC
C. 802.11r
D. CCKM
Question 75
During a client roaming event, which device is responsible for communicating the new Layer 2 EID mapping of a wireless supplicant to the fabric domain?
A. WLC
B. BN
C. CP2
D. CP1
Question 76
Campus users report a poor wireless experience. An engineer investigating the issue notices that in high-density areas, the wireless clients fail to switch the AP to which are automatically connected. This sticky client behavior is causing roaming issues. Which feature must the engineer configure?
A. optimized roaming
B. load balancing and band select
C. Layer 3 roaming
D. Layer 2 roaming
Question 77
An enterprise has moved most services to the cloud, including email applications and real-time communication. Which feature must be enabled on the wireless network to improve the user experience?
A. radio management
B. fast secure roaming
C. QoS
D. interference mitigation
Question 78
An enterprise is using two wireless controllers to support the wireless network. The data center is located in the head office. Each controller has a corporateWLAN configured with the name Copr-NET392267230WLC-1 and Corp-NET68371638WLC-2. The APs are installed using a round-robin approach to load balance the traffic. What should be changed on the cofiguration to optimize roaming?
A. Use the same WLAN name for the corporate network on both controllers.
B. Move all access points to one controller and use the other as N+1 HA.
C. Move the controllers to an external data center with higher internet speeds.
D. Place the access points per floor on the same controller.
Question 79
The wireless team must configure a new voice SSID for optimized roaming across multiple WLCs with Cisco 8821 phones. Which two WLC settings accomplish this goal? (Choose two.)
A. Configure AVC profiles on the SSID.
B. Configure mobility groups between WLCs.
C. Use AVC to tag traffic voice traffic as best effort.
D. Configure AP groups between WLCs.
E. Use Cisco Centralized Key Management for authentication.
Question 80
An engineer must repurpose a lab WLC appliance for use in the production environment of the enterprise. After the new WLC is configured with the information of the other WLC, the mobility tunnels are still not coming up. What is the reason?
A. A firewall is blocking UDP port 16667 between the WLCs.
B. The WLC management interfaces are in the same VLAN.
C. The hardware platform is incompatible.
D. The mobility groups are different.
