Which command enables IS-IS on a given interface? network router isis isis network ip router isis What is specified by Level 3 routing? routing between separate domains routing between different areas within the same domain routing between ISs within the same area routing between ESs and ISs on the same subnet Which of the following statements is true for IS-IS systems? All ISs in an area must have different area addresses. If multiple NETs are configured on the same IS, they must have different system IDs. All ESs and Level 1 ISs must have a unique system ID area wide. All Level 3 ISs must have a unique system ID domain wide. Which two features make IS-IS more scalable than OSPF? (Choose two.) one level of routers fewer link-state LSAs are used more routers can reside in a single area fewer link-state PDUs are used less timers to adjust IS-IS does not form adjacencies What is used to elect the designated intermediate system if all interface priorities are the same on a Frame Relay network? weight attribute highest IP address IP address of the loopback interface MAC address highest local DLCI In IS-IS routing, which of the following items describe the network service access point? (Choose two.) the location at which OSI network services are provided to the network layer the location at which OSI network services are provided to the transport layer a conceptual point on the boundary between the transport and session layers a conceptual point on the boundary between the network and transport layers a logical entity formed by a set of contiguous routers a protocol that carries upper-layer data and error indications In IS-IS routing, when is level 2 routing required? when routing between end systems and intermediate systems when routing between level 1 areas in different domains when routing between level 1 areas in the same domain when routing between end systems in the same area Which command is required in IS-IS to specify that a router will act only as a backbone router? RTC(config-if)# isis circuit-type layer-1 RTC(config-if)# isis circuit-type layer-2-only RTC(config-router)# is-type level-1 RTC(config-router)# is-type level-2-only What is the area number for the following IS-IS router configuration? RouterA(config)# router isis RouterA(config-router)# net 49.2385.A02C.025B.0001.00 49 49.2385 49.2385.A02C A02C.025B.0001 Which two commands must be issued to initially configure a network for IS-IS? (Choose two.) net command isis circuit-type ip router isis isis metric isis password Observe the diagram. The IS-IS routers are not exchanging updates. What is a possible reason? The routers are not in the same area. The metrics do not match. The IS-IS circuit types do not match. The routers are not both configured as level 1 routers. In an IS-IS environment, what is true about Level 2 routers? responsible for routing between separate domains responsible for routing between different areas within the same domain responsible for routing between ISs within the same area responsible for routing between ESs and ISs on the same subnet Which three statements are true about IS-IS L2 routers? (Choose three.) L2 routers have interfaces in multiple areas. L2 routers have interfaces in a single area. L2 routers maintain a link-state database that contains only inter-area topology information. L2 routers are responsible for routing to end systems inside an area. L2 routers make up the backbone of an IS-IS routing domain. Which two statements are true about the IS-IS pseudonode LSP? (Choose two.) It represents a LAN. It is sent by the DIS only. It is sent on point-to-point networks. It is sent by L2 routers only. It increases the number of adjacencies on a LAN. Which configuration specifies the IP networks to be advertised by IS-IS? a network command for each IP network address a router isis command for each IP network address a clns router isis command for each interface with an IP network address that must be advertised an ip router isis command for each interface with an IP network address that must be advertised an isis circuit-type command for each IP network address Observe the diagram. The administrator requires the IS-IS adjacencies to authenticate so that no unauthorized routers will create adjacencies. Which interface command is required for a router to authenticate with another directly connected router before allowing the adjacency to form? area-passwordpassword domain-password password area # authentication password isis passwordpassword Refer to the exhibit showing a network diagram and partial configuration. Two neighboring IS-IS routers are unable to form an adjacency. Which two statements identify configuration problems causing the adjacency problem? (Choose two.) incorrect adjacency level specified on R1 serial 0 interface IS-IS routing not properly enabled on R1 IS-IS routing not properly enabled on R2 mismatched area configurations mismatched authentication configurations ES-IS adjacency settings not configured properly Which two are likely to be a cause for IS-IS neighbor relationships to be stuck in INIT state? (Choose two.) physical layer up, but data-link layer is down mismatched area configurations mismatched authentication configurations mismatched MTU configuration data-link layer connectivity, but no IP connectivity Given the above output, which statement is true? Rtr-B is a L1 router only. Rtr-B is a L1/L2 router. Rtr-B is a L2 router only. Rtr-B is a L3 router.
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