2023 Realistic Verified 4A0-115 exam dumps Q&As – 4A0-115 Free Update [Q16-Q30]

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2023 Realistic Verified 4A0-115 exam dumps Q&As – 4A0-115 Free Update

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Q16. Which of the following statements about an EVPN with integrated routing and bridging (EVPN-IRB) service is FALSE?

This service requires the use of EVPN-MPLS for data plane.

In this service, the IRB interface acts as a default gateway for hosts in the corresponding subnet.

This service consists of a VPRN and multiple VPLSs.

This service enables the use of EVPN to provide connectivity between hosts in different subnets.

Q17. Which of the following statements about EVPN auto-discovery per EVPN instance (A-D per EVI) routes is FALSE?

A PE uses the received updates to create aliasing lists to PES that are part of an all-active Ethernet segment.

A PE advertises an A-D per EVI route for each operational service defined on an Ethernet segment.

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

The updates are used to discover all the PES associated with an Ethernet segment.

Q18. An operator configures an EVPN-IRB that uses the interface-ful unnumbered forwarding model on a Nokia
7750 service router. Which ofthe following statements regarding the configuration performed on each participating PE is FALSE?

A supplementary broadcast domain (SBD) is configured as a routed VPLS.

A VPRN service is configured and has an interface bound to the local VPLS.

The advertisement of IP-Prefix routes is enabled in the SBD VPLS.

An IP address is configured in the VPRN interface that is bound to the SBD VPLS.

Q19. In the exhibit,

VPLS 20 is associated with a single-active Ethernet segment on routers PEI and PE3. Which of the following statementsis FALSE?

PEI advertises an A-D per ES route which indicates that ESI 1 is operating in a single-active redundancy mode.

PEI advertises an A-D per EVI route which includes a P flag set to I to indicate that PEI is the DF for EVI 20.

PE3 advertises an A-D per ES route which indicates that ESI I is operating in a single-active redundancy mode.

When PEI learns MAC-01, it advertises a MAC/IP route which indicates that MAC-OI is associated with ESI I.

Q20. 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.

Q21. Examine the exhibit.

Which of the following configuration conditions is required for the proper operation of EVPN VPWS 2?

The local AC tag ID configured on PE2 must match the local AC tag ID configured on PEI.

The remote AC tag ID configured on PE2 must match the remote AC tag ID configured on PE3.

The local AC tag ID and the remote AC tag ID configured on PE2 must match.

The local AC tag ID configured on PEI must match the local AC tag ID configured on PE3.

Q22. Which of the following statements about the EVPN route types used to support multi-homing is TRUE?

Ethernet segment (ES) routes indicate the redundancy mode of the Ethernet segment.

ES routes provide the ESI label required to support the split-horizon mechanism.

Auto-discovery (A-D) routes are imported by all PES participating in the EVPN service.

A-D per Ethernet segment routes indicate the desired designated forwarder election algorithm.

Q23. 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.

Q24. 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.

Q25. Examine the exhibit.

Which of the following statements about the operation of VPLS 20 is TRUE?

The flooding list maintained by PEI for VPLS 20 contains three entries: PE2, PE3, and PE4.

PE3 advertises an IMET route to PEI when its VPLS 20’s mesh-SDP becomes operationally UP.

PE3 signals a service label to PE4 when its VPLS 20 is enabled and is bound to an operational SDP.

PEI advertises a MAC route for MAC-OI when its VPLS 2(Ys SAP becomes operationally UP.

Q26. The interface-ful numbered model is used for a Layer-3 EVPN service. Which of the following statements is FALSE?

EVPN routes are advertised with a service label associated with the SBD VPLS.

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

EVPN MAC/IP routes are used to advertise the MAC and IP addresses of local hosts.

EVPN MAC/IP routes are used to advertise the MAC and IP addresses of SBD IRB interfaces.

Q27. 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.

Q28. 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

Q29. Based on the exhibit below, which of the following statements is FALSE?

When forwarding BUM traffic, the local PE must replicate the traffic and send it as unicast to the advertising neighbor.

The MPLS label 524284 presented indicates the service label value that the neighbor 10.10.10.2 uses to forward BUM traffic to PEI.

When forwarding BUM traffic, the local PE uses an MPLS transport tunnel towards the advertising neighbor.

The IMET route is imported by a local VPLS configured with a route-target value of 65100:10.

Q30. 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?