多项选择题
A.MD5 B.DES C.Kerberos D.Unauthenticated E.Simple password
WhichfourcomponentsmakeuptheNetworkEntityTitle（NET）ofan...
多项选择题Which four components make up the Network Entity Title （NET） of an IS-IS router？（）
A.AF B.AFI C.MAC D.Area E.SysID F.A-Selector G.N-Selector H.IP-address
RoutersAandBareconnectedwithapoint-to-pointOC-3interfac...
单项选择题Routers A and B are connected with a point-to-point OC-3 interface. Each router’s OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in different areas.How many IS-IS adjacencies exist between the two routers？（）
A.0 B.1 C.2 D.3
InIS-IS，howdoestherestartingrouterinformitshelpersthata...
单项选择题In IS-IS， how does the restarting router inform its helpers that a restarts event occurred？（）
A.Sending out a graceful restart PDU B.Sending an LSP that contains no TLVs. C.Sending out a restarts TLV with the RR bit set. D.Reflooding its LSP with a maximum sequence number.
