legacy 802.11b wireless scanners are begin implemented in your autonomous AP deployment Existing modern clients work fine on the same SSIDs, APs, and channel the legacy scanner are having difficulty maintaining reliable wireless connectivity which AP configured could potential correct this issue
A.Enable short preamble Dot11Radio0
B.Disable short preamble Dot11radio1
C.Disable short preamble dot 11 radio0
D.Confirm that 802.11n support is disable
E.Conf1gure globalpreamble negotiation
F.Enable short preamble on Dot 11Radio1
Which three statements about the high availability configuration on the Cisco 5760 WLCs are true? (Choose three.)
A. Cisco WLC with more reboots is elected as active when the default stack priority is in use.
B. EtherChannel bundles all ports on both active and standby Cisco WLC on a logical port.
C. Cisco 5760 WLC uses a dedicated high availability port for high availability and configuration synchronization.
D. High availability switchover is triggered when one of the ports on the active Cisco WLC EtherChannel bundle fails.
E. Active Cisco WLCs in a pair can be identified using LED state without issuing any command on the Cisco WLC console.
F. Cisco WLC with the highest priority in a stack are elected as the active Cisco WLC during the election process.
G. All configuration including certificates are automatically synced between active and standby Cisco WLC.
You are the wireless administrator for ACME corporation. You must configure a Cisco Catalyst 3850 Series Switch to work as mobility agent to allow access point association to this switch. Which statement about this scenario is true?
A. Access points must be connected to an access port that has the access VLAN configured to be the same as the service port VLAN on the Catalyst 3850 switch.
Access points must be connected to a trunk port with the native VLAN set to 1 in order to join the WLC on the Catalyst 3850 switch.
B. Access points must be connected to an access port with the access VLAN configured to the same as the wireless management VLAN on the Catalyst 3850 switch.
C. Access points must be connected to an access port that has the access VLAN configured to be the same as the management VLAN for the switch stack.
D. Access points must be connected to an access port with the access VLAN configured to be any VLAN that has a Layer 3 interface (SVI) on the Catalyst 3850 switch.
You have added your active directory server to the cisco ISE and see the status as operational.However when you try to add active directory groups to your authorization policy conditions in the Cisco ISE ,no active Directory groups appear,what is the most likely reason?
A.The credentials used to join the Cisco ISE to active directory do not have succulent privtleges to query active directory.
B.You did not add any attribute in the Active Directory join point under the External identify source
C.You dtd not add any groups in the Active Directory jom potnt under the External identity source
D. A firewall is blocking tcp port 389 between the cisco ISE and active directory
How to monitor CPU utilization on a wireless LAN Controller?
A. Define the network management system and community in the WLC and a matching v1 or v2 community-string in the network management system to enable the WLC CPU OID to be polled
B. Define the network management system as a trap receiver and enable the default RFC 1213 traps, which include SysCPUUtilization
C. Define the network management system in the WLC with a matching read-write SNMP community to enable the WLC CPU OID to be polled with an SNMP set by the network management system
D. Define an external syslog receiver in the WLC that will receive a syslog message when the percentage of CPU processing ability reaches a preconfigured percentage
Prime infrastructure will trigger alarms indicating that the prime infrastructure physicalor virtual server is low on disk space as the administrator which three actions can you take to increase disk space immediately upon receiving a major alert (60 percent disk usage)? (choose three)
A.Change the disk controller RAID
B.Enable corn job on ade for disk clean up using $ du-sh
C.Compacting the PI database using the NCS CLEANUP command
D.Reduce the storage load on the local disk by setting up and using remote buckupreposttories
E.Reduce the length of time you store client association data and related events.
F.Compacting the PI database using the NCS DATABASE PURGE command
Heartbeats are used to maintain the high-availability status of an application. Which factor is most important?
D. Round-trip time
https://books.google.com.hk/books?id=YLHvHGGx5AE C&pg=PT66&lpg=PT66&dq=wlc+heatbeat+round+trip+time&source=bl&ots=ClFsWOm0RH&sig=5NO_zaiDBOmHlDzXfLiLgrkgpP0&hl=zh-TW&sa=X&ved=0ahUKEwjb0M31vdLPAhUT9mMKHRJkDv4Q6AEIWDAH#v=onepag e&q=wlc%20heatbeat%20round%20trip%20time&f=fal se
Cisco Prime Infrastructure 3.1.3 Administrator Guide – Configuring High Availability [Cisco Prime Infrastructure] – Cisco
Health Monitor (HM) detects failure conditions using the heartbeat messages that the two servers exchange. If the primary server is not responsive to three consecutive heartbeat messages from the secondary, it is considered to have failed. During the health check. HM also checks the application process status and database health; if there is no proper response to these checks, these are also treated as having failed.
The HA system takes approximately 10 to 15 seconds to detect a process failure on the primary server and initiate a failover. If the secondary server is unable to reach the primary server due to a network issue, it might take more time to initiate a failover. In addition, it may take additional time for the application processes on the secondary server to be fully operational.
High Availability FAQ CCisco.
http://www.cisco.com/c/en/us/produc ts/co llateral/wireless/aironet-1130-ag-series/qa_c67-714540.html
Q. What are the recommendations for the network between the primary and secondary controllers connected via RP over Layer 2 VLAN/fiber to achieve client SSO? A. The Layer 2 network for RP connectivity needs to follow these recommendations to ensure appropriate performance in case of a switchover:
• Round-trip time (RTT) latency on the redundancy link: 80 ms or less for the default keep-alive timeout or 80 percent of the configured keep-alive timeout
• Preferred maximum transmission unit (MTU) on the redundancy link: 1500 or above
• Bandwidth on the redundancy link: 60 Mbps or more