There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）A、No routers are adjacent with each other.B、Only Router A and Router B are adjacent at Level 1.C、Only Router A and Router B are adjacent at Level 2.D、All three routers are adjacent with each other at Level 1.
There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）
- A、No routers are adjacent with each other.
- B、Only Router A and Router B are adjacent at Level 1.
- C、Only Router A and Router B are adjacent at Level 2.
- D、All three routers are adjacent with each other at Level 1.
相关考题：
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 the same area.How many IS-IS adjacencies exist between the two routers?（）A.0B.1C.2D.3
Two Level 2 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?() A. An Adjacency is formed.B. No IS-IS PDUs are sent.C. An Adjacency does not form.D. An Adjacency forms but traffic is not forwarded.
Which two statements are true by default of a multilevel IS－IS network?() A. Level 1 only routers see routes contained in their area.B. Level 1 routers route towards Level 2 routers due to the attached bit.C. Level 2 routers route towards Level 1 routers due to the attached bit.D. Level 2 routers can see routes in other Level 2 areas and routes originated in Level 1 areas.
Routers A and B are connected with a point-to-point OC-3 interface. Each routers 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.0B.1C.2D.3
Which three authentication options does IS－IS support?() A. MD5B. DESC. KerberosD. unauthenticatedE. simple password
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 across multiple areas.
Two Level 1 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?（）A、An Adjacency is formed.B、No IS-IS PDUs are sentC、An Adjacency does not form.D、An Adjacency forms but traffic is not forwarded.
Which three authentication options does IS-IS support？（）A、MD5B、DESC、KerberosD、UnauthenticatedE、Simple password
Two Level 2 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?（）A、An Adjacency is formed.B、No IS-IS PDUs are sent.C、An Adjacency does not form.D、An Adjacency forms but traffic is not forwarded.
Which three components are part of the Network Entity Title (NET) on an IS-IS router?（）A、AFIB、MACC、areaD、N-SelectorE、IP address
Why does IS-IS use the SPF algorithm?（）A、to determine the pseudonode IDB、to determine the next hop to a given destinationC、to determine the complete path to a given destinationD、to determine the number of routers present in a given area
Routers A and B are connected with a point-to-point OC-3 interface. Each routers 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、0B、1C、2D、3
What are three key concepts that apply when configuring the EIGRP stub routing feature in a hub and spoke network？（）A、A hub router prevents routes from being advertised to the remote router.B、Only remote routers are configured as stubs.C、Stub routers are not queried for routes.D、Spoke routers connected to hub routers answer the route queries for the stub router.E、A stub router should have only EIGRP hub routers as neighbors.F、EIGRP stub routing should be used on hub routers only.
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.
Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?（）A、the router with the lowest priorityB、the router with the highest priorityC、the router with the highest System IDD、the router with the highest IP address
单选题Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?（）Athe router with the lowest priorityBthe router with the highest priorityCthe router with the highest System IDDthe router with the highest IP address
多选题Which three initial configuration methods are supported on J-series routers？（）ACLIBJ-WebCJUNOScopeDautoinstallationEPCMCIA flash card
单选题Routers A and B are connected with a point-to-point OC-3 interface. Each routers 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?（）A0B1C2D3
多选题Which three components are part of the Network Entity Title (NET) on an IS-IS router?（）AAFIBMACCareaDN-SelectorEIP address
单选题Two Level 2 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?（）AAn Adjacency is formed.BNo IS-IS PDUs are sent.CAn Adjacency does not form.DAn Adjacency forms but traffic is not forwarded.
单选题Two Level 1 routers are exchanging Hello packets with different Area IDs.What occurs between these routers?（）AAn Adjacency is formed.BNo IS-IS PDUs are sentCAn Adjacency does not form.DAn Adjacency forms but traffic is not forwarded.
单选题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？（）A0B1C2D3
单选题Why does IS-IS use the SPF algorithm?（）Ato determine the pseudonode IDBto determine the next hop to a given destinationCto determine the complete path to a given destinationDto determine the number of routers present in a given area
多选题What are three TLVs that support IS-IS extensions for traffic engineering?（）AExtended IS reachabilityBExtended IP reachabilityCTraffic engineering opaqueDTraffic engineering router IDEExtended MPLS reachability
多选题Which three authentication options does IS-IS support?（）AMD5BDESCKerberosDunauthenticatedEsimple password
多选题Which three are features of the integrated services routers?（）AVPN accelerationBvoice mailCanti-XDwireless LANEfixed configurationFIPS
单选题There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）ANo routers are adjacent with each other.BOnly Router A and Router B are adjacent at Level 1.COnly Router A and Router B are adjacent at Level 2.DAll three routers are adjacent with each other at Level 1.
多选题Routers can send hello messages in three HSRP states. Which ones are they？（）AStandbyBLearnCListenDSpeakEActive