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

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單項選擇題

DR （Designated Router） is for environments where many routers on the same network such asEthernet. In the following presented network， all routers are reloaded simultaneously， and DR isselected as expected. What is the CK-RTC status？（）

A.2WAY/BDR
B.FULL/BDR
C.2WAY/DROTHER
D.2WAY/DR
E.FULL/DROTHER
F.FULL/DR
G.None of the other alternatives apply

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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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？（）

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DR （Designated Router） is for environments where many routers on the same network such asEthernet. In the following presented network， all routers are reloaded simultaneously， and DR isselected as expected. What is the CK-RTC status？（）

Which three of the following network features are methods used to achieve high availability（）

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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？（）

DR （Designated Router） is for environments where many routers on the same network such asEthernet. In the following presented network， all routers are reloaded simultaneously， and DR isselected as expected. What is the CK-RTC status？（）