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Cisco Implementing and Operating Cisco Service Provider Network Core Technologies 350-501 SPCOR Exam Questions
Question 1
An engineer is implementing a router redistribution within BGP. The route map must be configured to permit all unmatched routes. Which action must the engineer perform to complete this task?
Answer : C
The task requires the engineer to configure a route map that permits all unmatched routes during router redistribution within BGP. The correct action is to remove the implicit deny entry at the end of the route map, as indicated in Option C. By default, route maps have an implicit deny at the end, meaning that if a route doesn't match any of the permit or deny statements in the route map, it will be denied. Removing this implicit deny entry ensures that all unmatched routes are permitted.Reference:= Implementing and Operating Cisco Service Provider Network Core Technologies
Question 2
Refer to the exhibit.
Refer to the exhibit. An ISP is providing online registration services for a new social program. OSPF is being used as an interior routing protocol with TE capabilities. A network engineer with an employee ID: 5209:82:636 must provide faster MPLS-enabled convergence in case of failure. The ip cef distributed command has already been configured on all MPLS-enabled routers, and connectivity between the core routers has been verified following IETF RFC 4379. Which additional task must the engineer perform to complete the implementation?
Answer : B
Question 3
Refer to the exhibit.
Refer to the exhibit. MPLS is configured within the network. The routers use OSPF to exchange routing information. Hosts that are connected to routers R1 and R3 use routers R2 and R4 to access servers that run a variety of intranet applications. A network engineer must ensure that R1 and R3 maintain an LDP session between them to support the flow of traffic between hosts and servers in case of failure on the path between R1 and R3. Which task should the engineer perform to provide LDP bindings in case of failure on the path between R1 and R3?
Answer : A
Question 4
Refer to the exhibit. Which additional configuration must an engineer to the adge router to inject a default router into the MP-BGP address family for the internet_Shared_Services dedicated VRF?
A)
B)
C)
D)
Answer : D
To inject a default route into the MP-BGP address family for a dedicated VRF, you would typically need to:
Configure a static default routein the VRF using theip route vrf <VRF-NAME> 0.0.0.0 0.0.0.0 <NEXT-HOP>command.
Redistribute the static routeinto BGP using theredistribute staticcommand under the BGP VRF configuration.
Question 5
Refer to the exhibit.
Router R1 is reporting that its BGP neighbor adjacency to router R2 is down, but its state is Active as shown. Which configuration must be applied to routers R1 and R2 to fix the problem?
A)
B)
C)
D)
Answer : D
In OSPF, the election of the designated router (DR) and backup designated router (BDR) is based on the OSPF network type. The network types include:
Broadcast: This is the default network type for Ethernet interfaces. In a broadcast network, OSPF elects a DR and BDR. All other routers become DROTHERs. To prevent the election of a DR/BDR, you can configure the interface as non-broadcast (NBMA) using theip ospf network non-broadcastcommand.
Point-to-Point: This network type is used for point-to-point links (e.g., serial links). There is no DR/BDR election in point-to-point networks.
Point-to-Multipoint: This network type is used for point-to-multipoint links (e.g., Frame Relay). There is no DR/BDR election in point-to-multipoint networks.
Point-to-Multipoint Non-Broadcast: Similar to point-to-multipoint, but explicitly configured as non-broadcast. There is no DR/BDR election in point-to-multipoint non-broadcast networks.
Loopback: Loopback interfaces are always treated as point-to-point.
Virtual-Link: Used for OSPF virtual links.
Sham-Link: Used for OSPF sham links.
Demand Circuit: Used for demand circuits (e.g., ISDN).
Non-Broadcast: Explicitly configured as non-broadcast. There is no DR/BDR election in non-broadcast networks.
Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) v1.0
Question 6
Refer to the exihibit.
Refer to the exhibit. A network operator working for a private telecommunication company with an employee id: 7138: 13:414 just added new users to the network, which resides in VLANs connected to routers R1 and R4. The engineer now must configure the network so that routers R1 and R4 share routes to the VLANs, but routers R2 and R3 are prevented from including the routes in their routing tables. Which configuration must the engineer apply to R4 to begin implementing the request?
Answer : B
Question 7
Refer to the exihibit.
Refer to the exhibit Routers R1 and R2 are connected via a seal link and use the IS-IS routing protocol for route exchange After a configuration change on R2. IS-IS connectivity is interrupted A network engineer confirmed that the interfaces are in the UP state and connectivity exists between the two routers. Which two actions must the engineer perform to resolve the problem? (Choose two.)
Answer : A, C
The disruption in IS-IS connectivity between R1 and R2, despite the interfaces being up, suggests an issue with packet handling or MTU configuration. Action A, disabling padding for hello packets under the serial interface on R2, is necessary because excessive padding can lead to issues in processing hello packets effectively. Action C, changing the MTU to 1500 bytes on R2, addresses potential MTU mismatch issues. MTU mismatches are common problems that can interrupt connectivity in networks using routing protocols like IS-IS; ensuring both routers operate at the same MTU can resolve this issue.
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