多項選擇題An OSPF link can be in multiple states at any given moment (ie. Exstart, exchange, full). Whichtwo IOS commands let you view the state of the link?()

A.show ip ospf
B.show ip protocols
C.show ip ospf neighbor
D.show ip ospf interface


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2.單項選擇題Which command should you use to verify what networks are being routed by a given OSPFprocess?()

A.show ip ospf
B.show ip route
C.show ip protocol
D.show ip ospf database
E.None of the other alternatives apply

3.多項選擇題While troubleshooting some connectivity issues, you issue the "show ip ospf database" in order toexamine the link state database. Which three of the statements below are true regarding theOSPF link state database?()

A.Each router has an identical link state database
B.External routes are imported into a separate link state database
C.Synchronization of link state databases is maintained via flooding of LSAs
D.Information in the link state database is used to build a routing table by calculating a shortest-path tree
E.By default, link state databases are refreshed every 10 minutes in the absence of topologychanges

5.多項選擇題Which three of the following network features are methods used to achieve high availability()

A.Spanning Tree Protocol(STP)
B.Delay reduction
C.Hot Standby Routing Protocol(HSRP)
D.Dynamic routing protocols
E.Quality of Service(QoS)
F.Jitter management

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