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.
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.
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
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 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.
Which two statements about the IS －IS routing protocol are true?() A. IS - IS is capable of supporting IPv4 and IPv6.B. IS - IS is only capable of supporting IPv4 and CLNS.C. IS - IS routers use ES - IS hellos (ESH) to establish and to maintain neighbor relationships.D. IS - IS routers run the Bellman - Ford algorithm against their LSDBs to pick the best paths.E. Level 1 routers learn about paths within the area of which they are a part.F. Level 2 routers learn about paths both within areas and between areas.
What kind of information does a router running a link－state routing protocol need to create and maintain its topological database?() A. LSAs from other routersB. Beacons received on point-to-point linksC. hello packetsD. Routing tables received from neighborsE. SAP packets sent by other routersF. TTL packets from exclusive routers
Which one of the following answer choices below is true regarding the OSPF topology database?() A. All entries in the topology database will be included on each router.B. All routers in the same OSPF area will have one topology database.C. The Dijkstra algorithm is used in the creation of the topology database.D. LSA packets are used to update and maintain the topology database.
What information does a router running a link－state protocol use to build and maintain its topological database?() A. hello packetsB. SAP messages sent by other routersC. LSAs from other routersD. beacons received on point-to-point linksE. routing tables received from other link-state routersF. TTL packets from designated routers
How do routers in an IS-IS Level-1 domain exit to reach other Level-1 （L1） domains？（）A、Level-1（L1） routers use default routes announced by Level-2（L2） routers in Level-1（L1） domainB、Level-1 routers use default routes installed based on ATT bit （Attach Bit） in announcements from Level-1-2（L1/L2） routerC、Level-1 routers use specific routes， for other Level-1 domain， announced by Level-1-2（L1/L2） by route-leaking feature of Cisco IOSD、Level-1 routers use specific routes， for other Level-1 domain， announced by Level-2（L2） by route-leaking feature of Cisco IOS
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.
Which two are characteristics of link-state routing protocols?（） (Choose two.)A、Routers choose a best path for a destination based on the SPF algorithm.B、All routers in a given area or level build a consistent database describing the network's topology.C、Routers choose the best path for a destination based on the interface on which they received the link stateadvertisement with the lowest cost.D、All routers in a given area or level forward link state advertisements between interfaces in the same area or level, adding their metric to the link state advertisement's cost information when they forward it.
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 kind of information does a router running a link-state routing protocol need to create and maintain its topological database?（）A、LSAs from other routersB、Beacons received on point-to-point linksC、hello packetsD、Routing tables received from neighborsE、SAP packets sent by other routersF、TTL packets from exclusive routers
Which one of the following answer choices below is true regarding the OSPF topology database?（）A、All entries in the topology database will be included on each router.B、All routers in the same OSPF area will have one topology database.C、The Dijkstra algorithm is used in the creation of the topology database.D、LSA packets are used to update and maintain the topology database.
What information does a router running a link-state protocol use to build and maintain its topological database？ （）A、 hello packetsB、 SAP messages sent by other routers C、 LSAs from other routersD、 beacons received on point-to-point linksE、 routing tables received from other link-state routersF、 TTL packets from designated routers
What information does a router running a link-state protocol use to build and maintain its topological database?（）A、hello packetsB、SAP messages sent by other routersC、LSAs from other routersD、beacons received on point-to-point linksE、routing tables received from other link-state routersF、TTL packets from designated routers
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、0B、1C、2D、3
Which two statements best describes the role of a router on a broadcast domain?（）A、Routers facilitate communications within a broadcast domain.B、Routers facilitate communications between broadcast domains.C、Routers are used to break up broadcast domains into separate networks.D、Routers are used to connect small broadcast domains and form larger more efficient broadcast domains
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.
多选题Which two statements about the IS -IS routing protocol are true?（）AIS - IS is capable of supporting IPv4 and IPv6.BIS - IS is only capable of supporting IPv4 and CLNS.CIS - IS routers use ES - IS hellos (ESH) to establish and to maintain neighbor relationships.DIS - IS routers run the Bellman - Ford algorithm against their LSDBs to pick the best paths.ELevel 1 routers learn about paths within the area of which they are a part.FLevel 2 routers learn about paths both within areas and between areas.
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What information does a router running a link-state protocol use to build and maintain its topological database? （）Ahello packetsBSAP messages sent by other routersCLSAs from other routersDbeacons received on point-to-point linksErouting tables received from other link-state routersFTTL packets from designated routers
多选题Which two statements are correct regarding IS-IS？（）ARouters maintain a single link-state database per area.BRouters maintain a separate Level 1 link-state database.CRouters maintain a separate Level 2 link-state database.DRouters maintain a single Level 1 link-state database per area.
多选题Which two are characteristics of link-state routing protocols?（） (Choose two.)ARouters choose a best path for a destination based on the SPF algorithm.BAll routers in a given area or level build a consistent database describing the network's topology.CRouters choose the best path for a destination based on the interface on which they received the link stateadvertisement with the lowest cost.DAll routers in a given area or level forward link state advertisements between interfaces in the same area or level, adding their metric to the link state advertisement's cost information when they forward it.
多选题Which two statements are true by default of a multilevel IS-IS network?（）ALevel 1 only routers see routes contained in their area.BLevel 1 routers route towards Level 2 routers due to the attached bit.CLevel 2 routers route towards Level 1 routers due to the attached bit.DLevel 2 routers can see routes in other Level 2 areas and routes originated in Level 1 areas.
多选题What kind of information does a router running a link-state routing protocol need to create and maintain its topological database?（）ALSAs from other routersBBeacons received on point-to-point linksChello packetsDRouting tables received from neighborsESAP packets sent by other routersFTTL packets from exclusive routers
多选题Which two statements are correct regarding IS-IS?（）ARouters maintain a single link-state database per area.BRouters maintain a separate Level 1 link-state database.CRouters maintain a separate Level 2 link-state database.DRouters maintain a single Level 1 link-state database across multiple areas.