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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相关考题
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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
