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Free Nokia 4A0-115 Practice Exam with Questions & Answers

Questions 1

In the exhibit, the EVPN-IRB is using the interface-ful unnumbered model and is fully operational. Which of the following statements isFALSE?

4A0-115 Question 1

Options:
A.

An MP-BGP session that supports the advertisement of VPN-IPv4 routes is established between PE3 and PE4.

B.

An MP-BGP session that supports the advertisement of EVPN routes is established between PEI and PE2.

C.

On PE3, the routing table for VPRN 15 contains an entry for 10.10.1.0/24. This entry is resolved to MAC-OI as an overlay index.

D.

On PE3, the routing table for VPRN 15 contains an entry for 10.10.4.0/24. This entry is resolved using a transport tunnel towards PEA.

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Questions 2

Based upon the exhibit, how many MAC-VRFs are there?

4A0-115 Question 2

Options:
A.

1

B.

2

C.

3

D.

4

Questions 3

Examine the exhibit.

4A0-115 Question 3

Which of the following actions is performed by PEI after it receives a BUM packet from CEI?

Options:
A.

PEI does not flood the packet because PEI is acting as non-designated forwarder (non-DF) for VPLS 10.

B.

PEI sends the packet to PE2 but not to PE3 because PE3 is connected to the originating ES.

C.

PEI sends the packet to PE2 and to PE3. An ESI label is included only in the packet sent to PE2.

D.

PEI sends the packet to PE2 and to PE3. An ESI label is included only in the packet sent to PE3.

Questions 4

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

Options:
A.

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

B.

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

C.

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

D.

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

Questions 5

Examine the exhibit.

4A0-115 Question 5

Which of the following statements about the operation of EVPN VPWS 4 is FALSE?

Options:
A.

PEI brings the SAP in VPWS 4 operationally down.

B.

PE3 sets the P flag in its advertised A-D per EVI route to I.

C.

PE2 receives a single A-D per EVI route. The route is originated from PE3.

D.

PE2 receives two A-D per ES routes: one from PEI and another from PE3.

Questions 6

Which of the following statements about EVPN auto-discovery per Ethernet segment (A-D per ES) routes is TRUE?

Options:
A.

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

B.

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

C.

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

D.

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

Questions 7

Which of the following statements about PE-to-PE MAC address advertisement is FALSE?

Options:
A.

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

B.

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

C.

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

D.

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

Questions 8

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

Options:
A.

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

B.

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

C.

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

D.

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

Questions 9

Examine the exhibit.

4A0-115 Question 9

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

Options:
A.

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

B.

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

C.

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

D.

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

Questions 10

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

4A0-115 Question 10

Options:
A.

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

B.

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

C.

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

D.

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