單項(xiàng)選擇題

Cat6500(config)# router ospf 1 
Cat6500(config-router)# network 0.0.0.0 255.255.255.255 area 0 
Cat6500(config-router)# nsf Cat6500(config-router)#end 
Refer to the exhibit. The configuration is used to enable nonstop forwarding for OSPF on a Catalyst 6500 Series 
Switch with redundant supervisor engines. 
The default CEF configuration is unchanged. After testing, user traffic is interrupted and NSF is not operational. 
What is the most likely reason? ()

A.CEF was not properly configured.
B.OSPF was not properly configured for graceful restart.
C.Stateful switchover was not correctly configured.
D.NSF for OSPF is only supported in area 0.


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2.多項(xiàng)選擇題Which two items best describe a Cisco IOS IP SLA responder?()

A.required at the destination to implement Cisco IOS IP SLA services
B.improves measurement accuracy
C.required for VoIP jitter measurements
D.provides security on Cisco IOS IP SLA messages via LEAP or EAP-FAST authentication
E.responds to one Cisco IOS IP SLA operation per port
F.stores the resulting test statistics

3.多項(xiàng)選擇題Which two statements best describe Cisco IOS IP SLA?()

A.only implemented between Cisco source and destination-capable devices
B.statistics provided by syslog, CLI, and SNMP
C.measures delay, jitter, packet loss, and voice quality
D.only monitors VoIP traffic flows
E.provides active monitoring
F.provides passive monitoring

4.單項(xiàng)選擇題Which item is the most important factor during deployment of high-availability features?()

A.Test major changes before deployment and defer minor changes until during deployment. 
B.Document and verify rollback procedures.
C.Ensure consistency of code versions across the network.
D.Progressively modify procedures and documentation during implementation.

5.多項(xiàng)選擇題When planning high availability, which two components are important to minimize the effect of outages?()

A.work staff attributes, such as skills and communication
B.redundancy, to prevent single points of failure
C.processes, such as documentation, change control, and labs
D.appropriate technology, such as hardware and software
E.tools, such as those for monitoring and reporting

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