300-515 Online Practice Questions and Answers

DRAG DROP

Refer to the exhibit. Drag and drop the EVC configuration items from the left onto the correct descriptions on the right.

Select and Place:

Which utility can you use to validate an LSP in an MPLS environment?

A. uRPF

B. MPLS LSP ping

C. logging

D. RSVP

An engineer is investigating an EVPN traffic flow issue. Which type of traffic should the engineer allow in an EVPN Tree Service in order to fix this issue?

A. known unicast from a leaf to another leaf

B. unknown unicast from a leaf to another leaf

C. multicast from a leaf to another leaf

D. known unicast from a root to another root

Refer to the exhibit. Which statement about this output is true?

A. The router IP 192.168.1.2 sent an implicit null, and the output is from the penultimate LSR.

B. The adjacent router is the egress LSR and has mpls ldp explicit-null configured.

C. The adjacent LSR router configured mpls label range 0.

D. The zero in the second column is the normal behavior of an egress router LSR.

In a typical service provider environment, which two tools are used to help scale PE router connectivity requirements? (Choose two.)

A. route reflectors

B. VPNv4 address family

C. originator ID

D. cluster ID

E. confederations

Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)

A. cluster ID

B. local preference

C. origin

D. originator ID

E. AS_PATH

What do EVPN single-active and all-active have in common?

A. They are default gateway redundancy options.

B. They are multihoming mechanisms used for CE devices.

C. They are used to provide single connection from a CE device to a service provider.

D. They are both roles that a designated router can take when MPLS is used with EVPN.

An engineer is troubleshooting AToM on an IOS XE router and receives an error when creating the xconnect. Which command does he need to complete to create the xconnect in AToM?

A. encapsulation mpls

B. encapsulation 12tpv3

C. protocol 12tpv3

D. protocol none

A network engineer is implementing Layer 3 MPLS VPNs on Cisco IOS/IOS XE PE routers. Which PE-to-CE routing protocol requires a separate routing process to be created for each VRF?

A. RIPv2

B. OSPF

C. BGP

D. EIGRP

You are writing the requirements for an MPLS L3VPN environment that uses MP-BGP between PE routers. In this environment, route targets and route distinguishers need to be advertised between the PE routers.

Which three operations meet these requirements? (Choose three.)

A. mandatory creation of PE-to-PE BGP sessions between the outgoing interface IP addresses

B. advertisement of standard communities, enabled on the PE-to-PE BGP neighbors

C. creation of PE-to-PE BGP sessions between loopback IP addresses

D. full mesh of IBGP sessions

E. full mesh of EBGP sessions and partial mesh of IBGP sessions

F. advertisement of extended communities, enabled on the PE-to-PE BGP neighbors

Which is the primary function of a MPLS L3 VPN route target?

A. It imports and exports identified routes into selected VRFs.

B. It uniquely identifies NLRIs that have the same numeric value.

C. It imports the external routes it identifies into VRFs that support Internet traffic

D. It supports QoS by classifying traffic by file type when it applies MPLS EXP bits to each packet.

Refer to the exhibit. A technician is troubleshooting a connectivity issue and notices that there is no IS-IS adjacency between R1 and R2. What can the technician change to bring the IS-IS adjacency up?

A. Change R2's net address to be in the same area as R1.

B. Change R1's is-type to level-2-only

C. Change R1's net address to be in the same area as R2.

D. Change R2's configuration to no longer set the overload bit.

Which BGP feature causes to replace the AS number of originating router with the AS number of the sending router?

A. route reflectors

B. route dampening

C. confederations

D. AS override

Refer to the exhibit.

An engineer has configured router 1 to provide shared services to clients behind router 2.

To complete the implementation so that routes from router 1 are accepted, what must the engineer configure on router 2?

A. with import route targets 101:102 and 202:201

B. with import route targets 201:202 and 401:402

C. with export route targets 301:202 and 101:102

D. with export route targets 201:202 and 401:402

Refer to the exhibit.

An organization is running H-VPLS on a network comprising four routers in a hub-and-spoke topology with R1 as the hub An engineer added a new spoke with multiple VCs to the network, and now traffic cannot flow properly How should the engineer update the configuration on R1 to correct the problem?

A. Disable spanning tree to allow loops to occur within the hub-and-spoke topology.

B. Disable split horizon to allow multiple VCs per spoke

C. Disable Cisco Discovery Protocol to allow MPLS to share labels between the designated spokes

D. Disable Cisco Discovery Protocol to allow for neighbor discovery