多项选择题

Which two statements are correct regarding IS-IS？（）

A.Routers maintain a single link-state database per area.
B.Routers maintain a separate Level 1 link-state database.
C.Routers maintain a separate Level 2 link-state database.
D.Routers maintain a single Level 1 link-state database per area.

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热门试题

单项选择题InJUNOSsoftware，howisroutesummarizationattheL1 L2borderconfigured？（）

A.By specifying the area-range statement.
B.By creating aggregate routes and applying policies.
C.By specifying the route-summarization statement.
D.By specifying the area-range restrict statement.

多项选择题Intheoutputofshowisisadjacency，whatarethreevaliditemsthatcanbedisplayedundertheattributesheader？（）

A.IS type
B.attached
C.overload
D.area addresses

多项选择题WhichtwoIS-IShellovaluesmustmatchtoformaLevel1IS-ISadjacency？（）

A.AFI
B.Area
C.System ID
D.N-Selector

单项选择题Whichcommandatthe[editprotocolsisis]hierarchylevelforcesroutedtraffictoavoidthisrouter？（）

A.metric 64
B.overload
C.priority 0
D.te-metric 32768

多项选择题WhichtwostatementsaboutISreachabilityTLV（TLV2）andtheextendedISreachability（TLV22）aretrue？（）

A.TLV 22 supports wide metrics.
B.TLV 2 is only used in Level 1 routers.
C.TLV 22 displays the neighbor’s extended areas.
D.Only TLV 22 can support the inclusion of sub-TLVs.
E. Only TLV 22 can be flooded across L1/L2 boundaries.