[2024] Easy To Download 4A0-115 Actual Exam Dumps Resources [Q11-Q30]

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[2024] Easy To Download 4A0-115 Actual Exam Dumps Resources

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NO.11 In the exhibit, the interface-ful numbered model is used for the Layer-3 EVPN service. Which of the following is used as the source MAC address in the packets sent from PEI when forwarding customer traffic to Host 2?

MAC-OI

MAC-03

MAC-04

MAC-11

NO.12 In the exhibit, PE2 is receiving an EVPN auto-discovery (A-D) route from PEI. Based on the output, which of the following statements is FALSE?

This route is an A-D per EVPN instance (A-D per EVI) route advertised by PEI for a VPWS.

This route indicates that the EVPN service configured on PEI is multi-homed.

This route indicates that the EVPN service is configured on PEI with an EVPN instance (EVI) of 113.

This route indicates that the EVPN service is configured on PEI with a service MTU of 1514.

NO.13 Which of the following statements about multi-homing for a Layer-2 service is TRUE?

In the single-active mode, the CE requires a LAG to be configured between the CE and all attached PEs.

In the single-active mode, the CE forwards traffic to all attached PES and receives traffic from a single PE.

In the all-active mode, all PES attached to a CE can forward traffic to and from the CE.

The Nokia 7750 SR supports a CE being multi-homed to a maximum of two PEs.

NO.14 Which of the following statements about the EVPN data plane is FALSE?

EVPN allows a service provider to deliver multiple services over a single core network.

The customer data is encapsulated and then tunneled between the PE routers.

EVPN-MPLS encapsulated data has a label that uniquely identifies each service.

EVPN-MPLS provides services over a simple IP network.

NO.15 What are EVPN inclusive multicast Ethernet tag (IMET) routes used for?

To advertise the MAC or MAC/IP addresses of locally-learned hosts

To advertise the redundancy mode of a local Ethernet segment

To discover all PES participating in the same VPIS service

To discover all PES attached to the same Ethernet segment

NO.16 Which of the following best describes the operation of a non-designated forwarder (non-DF) in a single-active Ethernet segment?

Blocks Tx unicast, allows Rx unicast, blocks Tx BUM, allows Rx BUM

Allows Tx unicast, allows Rx unicast, blocks Tx BUM, allows Rx BUM

Blocks Tx unicast, blocks Rx unicast, blocks Tx BUM, blocks Rx BUM

Allows Tx unicast, blocks Rx unicast, allows Tx BUM, blocks Rx BUM

NO.17 Which of the following statements about the operation of a single-homed EVPN VPWS is TRUE?

The same tag ID must be configured for the local attachment circuit (AC) at each PE.

Each PE advertises a MAC route and an A-D per EVI route when its local AC becomes operationally UP.

The advertised A-D per EVI route includes a non-zero tag ID and a non-zero MPLS label.

Each PE verifies that the received tag ID matches its configured local AC tag ID.

NO.18 Based upon the exhibit, which of the following statements is FALSE?

VPLS 10 must be configured with two BGP instances on PE3 and PE4.

On PE3 and PE4, VPLS 10 must be configured with two different route-distinguisher values: one for VXLAN and another for MPLS.

On PE3 and PE4, VPLS 10 must be configured with two different route-target values: one for VXLAN and another for MPLS.

A BGP export policy is required on PE3 and PE4 to ensure that IMET routes originated with VXLAN encapsulation are not advertised to the peer across the core network.

NO.19 Which of the following EVPN routes are exchanged to support the operation of a multi-homed EVPN VPWS?

Auto-discovery per EVPN instance (A-D per EVI) routes and Auto-discovery per Ethernet segment (A-D per ES) routes only

MAC/IP routes, A-D per EVI routes, and A-D per ES routes

A-D per EVI routes, A-D per ES routes, and Ethernet segment (ES) routes

A-D per EVI routes and ES routes only

NO.20 Which of the following statements does NOT describe the operation of the Layer-3 EVPN asymmetric forwarding model?

All VPLS instances must be configured on all PES regardless of whether they have a local host or not.

EVPN IP-Prefix routes are used to populate the VPRN VRF tables.

The egress PE does not perform any Layer-3 route look up to forward traffic.

The ingress PE performs both Layer-2 and Layer-3 look ups when forwarding traffic between subnets.

NO.21 A Layer-3 EVPN service is configured to use the interface-ful unnumbered forwarding model. Which of the following statements isFALSE?

Each participating PE advertises a MAC/IP route that carries the MAC address of SBD IRB interface.

IP-Prefix routes exchanged between PES include a non-zero MAC address as an overlay index.

The VPRN service is configured to allow the advertisement of IP prefixes.

The SBD IRB interface configured in the VPRN service has no IP address assigned to it.

NO.22 Which of the following statements about EVPN auto-discovery per Ethernet segment (A-D per ES) routes is TRUE?

The updates include an Ethernet segment identifier label that is used in loop prevention.

The updates advertise the Ethernet segment availability in a given EVPN service.

The updates include an MPLS label that is set to a non-zero value.

The updates include an Ethernet tag ID that is set to zero.

NO.23 Which of the following statements about PE-to-PE MAC address advertisement is FALSE?

The service distinguisher (label or VNI) is advertised with the MAC/IP EVPN update.

Route targets are used to uniquely identify routes between EVIS in the case of MAC address overlaps.

A PE uses a single MP-BGP session with a remote peer to exchange the routes for all EVIs.

A PE advertises locally-learned MAC addresses to remote PES using EVPN type-2 routes.

NO.24 Proxy-ARP/ND is operational for a VPLS. Which of the following statements is FALSE?

The PE has proxy-ARP and dynamic-populate enabled for the VPLS.

The proxy-ARP table is populated by snooping IP packets received from remote PEs.

When the PE learns a local host IP address, it adds an entry into its proxy-ARP table.

The PE advertises a MAC/IP route that includes the MAC and IP address of a local host.

NO.25 Based upon the exhibit, which of the following statements is FALSE?

PEI populates this information into the local VPLS FDB.

Neighbors 10.10.10.2 and 10.10.10.3 have proxy-ARP enabled for the VPLS.

Neighbors 10.10.10.2 and 10.10.10.3 have a service that uses a network identifier of 10.

PEI uses VXLAN tunnels to reach neighbors 10.10.10.2 and 10.10.10.3.

NO.26 In the exhibit, the interface-less forwarding model is used for the Layer-3 EVPN service. Which of the following statements about traffic forwarding from Host 1 to Host 2 is FALSE?