Cisco 300-425 Practice Test - Questions Answers, Page 19
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A customer uses a Cisco 5520 WLC that is connected via a single 10-GB interface to manage the wireless network. The wireless network includes 500 APs for the campus network. The customer wants to add 300 APs and is concerned about traffic load and lack of redundancy. The purchase of a second controller is not an option. Which design approach mitigates the customer concerns?
Connect a second 10-GB interface on the WLC and set the port as a secondary port.
Connect a second 10-GB interface on the WLC and implement LAG.
Implement a vWLC and configure SSO with the WLC.
Implement a vWLC and configure N+1 redundancy with the WLC.
A customer with two Cisco 5520 WLCs that work as a primary and secondary had some switching issues and the primary controller lost connectivity. Immediately all APs went to discovery and joined the secondary controller. After recovering from the issue, the primary controller is online, but no APs return to it. All APs remain in the secondary controller. Which setting advises the APs to return to their primary controller?
AP fallback
AP multicast mode
AP heartbeat timeout
broadcast forwarding
An engineer must optimize client roaming after noticing that clients in the environment are not roaming as expected. Upon reviewing an over- the-air packet capture, the engineer sees that the AP is sending a BSS Transition Management query to the client, which causes it to roam.
The disassociation imminent feature is not enabled on the WLAN. What is the cause of the issue?
Low RSSI check is enabled.
Fast Transition is disabled.
Band Select is enabled.
Optimized roaming is enabled.
A customer Wi-Fi deployment is experiencing the sticky client problem and must enable the optimized roaming feature. The wireless clients have valid security credentials for an SSID and can see an AP that offers that SSID to join. What must be configured to enhance roaming?
RSSI threshold
disable DFS
disable 802.11k
enable data rates
A customer has a centralized wireless deployment with N+1 high availability and few open authentication SSIDs configured. After fail over, all APs are broadcasting all SSIDs, but the clients are assigned IP addresses from a different subnet. The WLANs on both WLCs are configured with the same dynamic interfaces. Which feature must be incorporated in the wireless design of the second controller?
RF Protocol
AP Groups
VLAN Select
AAA Override
An engineer needs a wireless design to provide redundancy for APs at remote sites that are connected to Cisco 3504 Wireless LAN
Controllers. The central Cisco 5520 Wireless LAN Controller supports 2000 APs and has 1975 access points associated to it. The engineer decides that not all APs at the remote sites must remain functional in the event of a failure. How does the engineer ensure that the most important access points at the remote sites remain online while not impacting the main site?
Enable Global AP Fail over Priority, set the 1975 APs to a priority of 'high', and set the 25 most important APs at the remote sites to 'critical'.
Enable AP Fallback Mode, set the 1975 APs to a priority of 'high', and set the 25 most important APs at the remote sites to 'critical'.
Enable Global AP Fail over Priority, leave the 1975 APs at the default priority, and set the most important APs at the remote sites to 'low'.
Enable AP Fallback Mode, leave the 1975 APs at the default priority, and set the most important APs at the remote sites to 'high'.
Based on a wireless network design, an engineer configured a primary and secondary controller for their APs. A power interruption caused the primary Cisco WLC to go down, and, as expected, all APs joined the secondary controller. When the primary controller came back up, all the APs remained joined to the secondary controller. Which approach must the engineer take for the APs to move back to the primary?
Set AP Fail over Priority to 4 on each AP.
Set AP Fallback to Enabled on the secondary controller.
Set AP Fallback to Enabled on the primary controller.
Set AP Fail over Priority to Critical globally.
A hospital wireless environment was designed with these characteristics:
* RF coverage
* better than -67 dBm in the 5 GHz spectrum
* RRM be used for DCA and TPC in the 2.4 GHz band
* RRM be used for DCA and TPC in the 5 GHz band
After deployment, why do many of the legacy 802.11b/g devices have difficulty maintaining connectivity?
Excessive co-channel interference in the 2.4 GHz band exists.
Excessive overlapping channels in the 2.4 GHz band exists.
TPC drastically increases Tx power in the 2.4 GHz band.
TPC drastically reduces Tx power in the 2.4 GHz band.
A customer has a Cisco wireless network that supports VoWLAN services. The customer wants supported voice clients to receive roaming recommendations and suggestions from APs. This functionality must not impact non-VoWLAN clients. What should be enabled on the VoWLAN SSID?
802.11r Fast Transition
802.11k neighbor lists
CCKM with 802.1X
802.11v BSS Transition Management
An engineer is designing a network deployment for a technology company. The company has four buildings with access points that must provide seamless wireless coverage and client roaming. The customer data center must have two WLCs and the core switches for the network. Which type of wireless architecture must be used?
cloud
centralized
autonomous
distributed
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