300-510 Practice Questions
298 real 300-510 exam questions with expert-verified answers and explanations. Page 2 of 6.
- Question #51MPLS and Segment Routing
What is used by SR-TE to steer traffic through the network?
Segment RoutingSR-TETraffic EngineeringSR Policy - Question #52Core Routing
For which reason do you deploy BGP confederations within a BGP transit backbone?
BGPBGP ConfederationsiBGP ScalingRouting Protocols - Question #53Multicast Routing
Which feature is used in multicast routing to prevent loops?
multicast routingRPFloop prevention - Question #54MPLS and Segment Routing
Refer to the exhibit. How are packets directed through the data plane when SRv6 is implemented?
SRv6Segment RoutingData PlaneIPv6 Extension Header - Question #55Unicast Routing
Refer to the exhibit. An engineer is addressing an IS-IS design issue which is running within the topology. All links are running on FastEthernet, except the link between R5 and R4...
IS-ISRouting MetricsDefault ConfigurationLink Cost - Question #56Multicast Routing
Refer to the exhibit. A service provider technician is working on a multicast issue for a customer. While checking the multicast table, the technician notices that no flags are pre...
Multicast Group RangesSSM (Source Specific Multicast)PIM (Protocol Independent Multicast)Multicast Routing Table - Question #57High Availability and Security
Refer to the exhibit. P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration applied. The BGP session is not coming up. Assume that there is no IP reach...
BGP AuthenticationKey ChainCisco IOS XRControl Plane Security - Question #58Routing Policy and Manipulation
Refer to the exhibit. An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3. Which mechanism should the engineer apply in order to...
BGP Path SelectionBGP Load BalancingIGP MetricTraffic Steering - Question #59Routing Policy and Manipulation
Refer to the exhibit. Which attribute can router 1 alter so that only other iBGP peers prefer to use 192.168.4.2 as the next hop for route 192.168.3.0/24?
BGP attributesLocal PreferenceiBGPBGP path selection - Question #60Routing Policy and Manipulation
Refer to the exhibit. A network operator must stop 10.33.33.33/32 from being redistributed into Level 1 router XR1. Which configuration meets this need? A. B. C. D.
IS-ISRoute FilteringRedistributionRoute-map - Question #61Core Routing
You noticed a recent change to the BGP configuration on a PE router, the bgp scan time has been changed from the default value to 30s. Which three effects will this change have? (C...
BGP Scan TimeBGP ConvergenceRouter CPU UtilizationNext-Hop Tracking - Question #62High Availability and Security
A CRS router that runs Cisco IOS XR has dual routing processors installed. Which solution should be implemented to prevent OSPF adjacency flapping if the primary routing processor...
NSROSPF High AvailabilityRP RedundancyCisco IOS XR - Question #63Unicast Routing
Which two statements about route reflectors are true? (Choose two.)
BGP Route ReflectorsBGP Loop PreventioniBGP ScalingBGP Attributes - Question #64Multicast Routing
Which two statements about mapping multicast IP addresses to MAC addresses are true? (Choose two.)
Multicast IP-to-MAC mappingMulticast MAC address formatMulticast address overlapLayer 2 multicast - Question #65Routing Policy and Manipulation
You have configured routing policies on a Cisco IOS XR device with routing policy language. Which two statements about the routing policies are true? (Choose two.)
Routing Policy Language (RPL)Cisco IOS XRPolicy EditingSequential Processing - Question #66Multicast Routing
Refer to the exhibit. Which task must you perform on interface g1/0/0 to complete the SSM implementation?
MulticastSSMIGMPv3Interface configuration - Question #67Unicast Routing
Refer to the exhibit. Which statement about this configuration is true?
BGPPath SelectionRoute AdvertisementDefault Behavior - Question #68Unicast Routing
Drag and Drop Question Compare different features between OSPFv2 and OSPFv3. Drag and drop the descriptions of OSPF from the left onto the correct OSPF versions on the right. Answe...
OSPFv2OSPFv3Routing ProtocolsIPv4/IPv6 - Question #69Service Provider VPN Services
Drag and Drop Question An engineer is troubleshooting end-to-end customer traffic across an MPLS VPN service provider network. Which tasks should the engineer use to solve the rout...
MPLS VPN TroubleshootingService Provider RoutingVRF TablesForwarding Tables - Question #70Core Routing
Drag and Drop Question Drag and drop the attributes for the BGP route selection on the left into the correct order on the right. Not all options are used. Answer:
BGPRoute SelectionPath AttributesRouting Protocols - Question #71Multicast Routing
An SP core is running PIM on the network. Multicast groups in this networkare in the 232.0.0.0/8 range. Which commandenables multicast routing operations without using an RP?
Multicast RoutingPIMSource Specific Multicast (SSM)Rendezvous Point (RP) - Question #72Core Routing
Which two BGP mechanisms are used to prevent routing loops when using a design with redundant route reflectors? (Choose two.)
BGP Loop PreventionRoute ReflectorsCluster-listOriginator ID - Question #73Multicast Routing
Which types of multicast distribution tree can PIM-SM use?
PIM-SMMulticast TreesShared Tree (RPT)Shortest Path Tree (SPT) - Question #74Multicast Routing
Which multicast routing protocol is most optimal for supporting many-to-many multicast applications?
Multicast RoutingPIM-BIDIRMany-to-many applicationsPIM-SM - Question #75Unicast Routing
Referring to the topology diagram show in the exhibit, which three statements are correct regarding the BGP routing updates? (Choose three.)
BGP RoutingIBGPEBGPSplit Horizon - Question #76Multicast Routing
What is determined by running the same hash algorithm on all PIMv2 routers?
PIM-SMRendezvous Point (RP)RP SelectionMulticast Hashing - Question #77Core Routing
What are two characteristics of BGP confederations? (Choose two.)
BGP ConfederationsBGP ScalingEBGP NeighboringAS Path Attributes - Question #78Routing Policy and Manipulation
What is a key benefit of BGP dynamic update peer groups?
BGPBGP Peer GroupsBGP OptimizationRouting Policy - Question #79Routing Policy and Manipulation
Which two of the following are true regarding the BGP Prefix-Based outbound route filtering feature? (Choose two.)
BGPRoute FilteringRouting PolicyAddress Families - Question #80Core Routing
The core routers within a transit AS are running both IBGP and IGP. The edge routers within the transit AS are using the next-hop-self option to establish the IBGP sessions. What c...
CEF (Cisco Express Forwarding)Packet ForwardingIBGPRouting Performance - Question #81Core Routing
After an engineer configures BGP in R1, it starts receiving this message Which action makes the peering come back up again?
BGPBGP TimersBGP PeeringTroubleshooting - Question #82Routing Policy and Manipulation
Refer to the exhibit. An engineer has configured all routers in the environment to run IS-IS Level 1 and Level 2 routing. The engineer wants traffic from R1 to R5 to pass via R2. b...
IS-ISMetric manipulationPath selectionTraffic engineering - Question #83Core Routing
Refer to the exhibit. Routers within the cluster are not receiving the desired prefixes. What must be done to fix the issue?
BGPiBGPRoute ReflectorFull Mesh - Question #84MPLS and Segment Routing
Refer to the exhibit. What is the relationship between Router 1 and Router 2?
Segment RoutingSR-TEHead-end routerTopology learning - Question #85Routing Policy and Manipulation
Refer to the exhibit. The green policy is designed with low delay, and the pink policy is designed with low cost. What is the next hop for node A on its way to node D, with the obj...
Performance RoutingTraffic EngineeringNext-hop selectionPolicy-Based Routing - Question #86Core Routing
What is the purpose of a BGP confederation?
BGP ConfederationsiBGP ScalingBGP PeeringAS Design - Question #87Unicast Routing
Refer to the exhibits. All links inside the network are configured at a default cost of one inside the fully converged OSPF domain. Given the configuration from XR1, which interfac...
OSPF Path SelectionEqual-Cost Multi-Path (ECMP)Cisco IOS XRForwarding Tie-breakers - Question #88Routing Policy and Manipulation
Which expression, when used with the as-path-set command, matches the AS path attribute of the route?
BGPAS PathRegular ExpressionsRouting Policy - Question #89Unicast Routing
Refer to the exhibit. While configuring router 2 with all the default values, a network engineer cannot see any route received in router 1. How should the engineer solve the issue?
IP AddressingNetwork ConnectivityRouting Protocol AdjacencyTroubleshooting - Question #90MPLS and Segment Routing
An engineer is working to implement segment routing protocol on the customer's core network. Which step should the engineer take before the segment routing is enabled and is runnin...
Segment RoutingMPLSSR-MPLS ConfigurationNetwork Implementation - Question #91Service Provider VPN Services
Refer to the exhibit. A network operator is working to deploy a Unified BGP design and allow it to be available only in selected markets and services in the future. The label alloc...
BGPMPLS Label AllocationRoute PolicyL3VPN - Question #92Unicast Routing
What are two differences between OSPF and IS-IS? (Choose two.)
OSPFIS-ISRouting Protocol ComparisonLink-state Routing - Question #93Unicast Routing
What are three requirements for a static IPv6-in-IPv4 tunnel? (Choose three.)
IPv6 TunnelsStatic TunnelsIPv6-in-IPv4Tunnel Requirements - Question #94QoS and Troubleshooting
A network engineer is troubleshooting OSPF multiarea. Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?
OSPF multiareaIOS XR troubleshootingHierarchical CLINetwork troubleshooting tools - Question #95Core Routing
Refer to the exhibit. Router 1 is connected to router 2 on interface TenGigE0/1. Which interface provides the alternate path to 172.16.200.9/32 when the link between router 1 and r...
Routing RedundancyLink FailureDynamic RoutingPath Selection - Question #96MPLS and Segment Routing
Refer to the exhibit. A network operator is troubleshooting TE tunnels and discovers that the soft preemption is not working as desired. Where should the soft preemption be applied...
MPLS TESoft PreemptionTunnel Configuration - Question #97MPLS and Segment Routing
Refer to the exhibits. A network operator is troubleshooting packet loss seen from the R1 loopback interface to the R2 loopback interface over the core network. The operator is att...
MPLS forwardingMPLS labelsPacket pathTroubleshooting - Question #98Routing Policy and Manipulation
Refer to the exhibit. Routers R1, R2, R3, and R4 have been configured to run OSPF, and router R5 is running EIGRP. Traffic from R1 to R5 is expected to pass via R4, but OSPF routin...
OSPF RedistributionOSPF Metric TypeOSPF Path PreferenceEIGRP to OSPF - Question #99High Availability and Security
Refer to the exhibit. A network operator is configuring BGP PIC on CE1 on already established neighborships with PE1 and PE2 inside the fully converged MPLS network. Which element...
BGP PICBFDConvergenceHigh Availability - Question #100Service Provider VPN Services
Refer to the exhibit. There is a connectivity issue between Customer-1 and Customer-2. File servers between the customers cannot send critical data. R3 routes are missing from the...
MPLS L3VPNBGP VRFRoute TargetRoute Propagation