Question 81
Refer to the exhibit. An enterprise has offices spread around the globe. The APs are connected to different controllers installed in separate datacenters. The IT team wants to allow clients to roam from controllers in group ABC to controllers in group XYZ. Which feature must be incorporated in the design to accomplish this task?
A. switch peer group
B. workgroup bridge
C. mDNS gateway
D. mobility lists
Question 82
An engineer is designing a wireless network to support high availability. The network will need to support the total number of APs and client SSO. Live services should continue to work without interruption during the failover. Which two requirements need to be incorporated into the design to meet these needs? (Choose two.)
A. controller high availability pair with one of the WLCs having a valid AP count license
B. WLC 7.5 code or more recent
C. redundant vWLC
D. 10 sec RTT
E. back-to-back direct connection between WLCs
Question 83
A wireless engineer must design mobility between two buildings at a campus site. The engineer has one controller at each site. The engineer is investigating inter- controller CAPWAP data and control traffic. Which two ports must be open? (Choose two.)
A. 5246
B. 5247
C. 8443
D. 16666
E. 16667
Question 84
An engineer has designed an anchor redundancy for guest clients connecting to SSID with auto-anchor configured. After adding a second Anchor WLC under theSSID mobility anchor list, clients are load-balanced between existing and new anchors instead of having one anchor as active and the other one as standby.
Which feature should be included in the design that will be configured on the WLC running 8.1 or above to ensure anchor redundancy?
A. Auto-Anchor Foreign Mapping
B. AP groups
C. Guest Anchor Priority
D. 802.11r
Question 85
An enterprise network administrator is asked to set up an experimental WLAN for a collaboration project with a local service provider. The WLAN must be anchored to a WLC in the service provider data center using legacy mobility mode. After the configurations are completed on the WLCs and the firewalls in the path, the data path mobility tunnel is failing to come up. What should be performed by the administrator to debug the issue?
A. Establish a Telnet connection from a local PC to the firewall on port 97.
B. Use the eping command on the WLC.
C. Establish a Telnet connection from a local PC to the firewall on port 16666.
D. Use the mping command on the WLC.
Question 86
Refer to the exhibit. An enterprise is using wireless as the main network connectivity for clients. To ensure service continuity, a pair of controllers will be installed in a datacenter. An engineer is designing SSO on the pair of controllers. What needs to be included in the design to avoid having the secondary controller go into maintenance mode?
A. The redundancy port must be the same subnet as the redundancy mgmt.
B. The keep alive timer is too low, which causes synchronization problems.
C. The connection between the redundancy ports is missing.
D. The Global Configuration of SSO is set to Disabled on the controller.
Question 87
Two Cisco 5520 Wireless LAN Controllers are managing all APs throughout the network. The WLCs are in different locations to provide geographical redundancy.
A mobility group has been configured on both WLCs and has an UP status on both controllers. The APs in location A are statically configured to use controller A as the primary and controller B as the secondary. If the WLC in location A goes offline, the APs successfully join the WLC in location B, but they do not fail over to the primary configured controller. Which configuration task fixes this issue?
A. Enable AP fallback globally on the WLC.
B. Change the AP Failover Priority to critical.
C. Use DHCP Option 43 and specify WLC in location A as primary.
D. Configure the WLC in location A as primary using the CAPWAP AP Controller IP Address command on all the location A APs.
Question 88
APs in a remote office recently have been converted from local mode to FlexConnect to take advantage of the local switching. After the change, remote wireless users report voice quality issues and bad quality on wireless IP phones while roaming. A debug is performed, and it is noticed that the 802.11r Fast Transition is not working as expected, like on local mode AP, though the same WLAN configuration is in place. What is the cause of the issue regarding the FlexConnect APs?
A. They do not support 802.11r FT.
B. They must be added into AP groups along with a common RF profile.
C. They must be in a FlexConnect group to support 802.11r FT.
D. They must be added to AP groups to support fast roaming methods.
Question 89
A network engineer is troubleshooting connectivity issues between two WLCs running 8.x code in SSO mode and finds that the redundancy management heartbeat is failing. Which packet type must be filtered for heartbeats when taking a capture to verify communication?
A. RSTP
B. UDP
C. TCP
D. ICMP
Question 90
Which UDP port numbers are used for exchange mobility packets in an AireOS wireless deployment?
A. UDP 16666 for control plane, EoIP (IP protocol 97) for data plane
B. UDP 16668 for control plane, UDP 16667 for data plane
C. UDP 16667 for control plane, UDP 16666 for data plane
D. UDP 16666 for control plane, UDP 16667 for data plane
