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Question # 4

In the exhibit,

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

A.

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

B.

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.

C.

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

D.

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

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Question # 5

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

A.

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

B.

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

C.

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

D.

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

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Question # 6

Examine the exhibit.

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

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.

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Question # 7

Which of the following statements about the EVPN Layer 2 Attributes extended community is FALSE?

A.

It is advertised with the auto-discovery per EVPN instance (A-D per EVI) route.

B.

It is applicable to EVPN VPLS services.

C.

It specifies the service maximum transmission unit (MTU).

D.

It specifies a P flag that indicates whether the advertising PE is a primary PE.

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Question # 8

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

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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Question # 9

In the exhibit, an EVI range is configured and the preference-based algorithm is used to elect the designated forwarder (DF) on ESI 1. Which PE is elected as DF for VPLS 10?

A.

PEI

B.

PE2

C.

PE3

D.

PE4

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Question # 10

Which of the following statements about EVPN Layer-3 services that utilize the interface-ful model is TRUE?

A.

EVPN MAC/IP routes are used to advertise the IP prefixes of subnets attached to a VPRN.

B.

VPRN instances are interconnected using a supplementary broadcast domain (SBD) VPLS.

C.

Intra-subnet traffic is carried over the tunnels provided by the SBD VPLS.

D.

The MAC/IP routing information is used to populate the VPRN routing table at the remote PEs.

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Question # 11

Which of the following statements does NOT describe the operation of the Layer-3 EVPN asymmetric forwarding model?

A.

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

B.

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

C.

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

D.

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

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Question # 12

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

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.

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