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Question 1

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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.
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.
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 encapsulated data has a label that uniquely identifies each service.
EVPN-MPLS provides services over a simple IP network.
EVPN-MPLS provides services over a simple IP network.
Suggested answer: D
Explanation:

EVPN-MPLS provides services over an MPLS network, not a simple IP network.The customer data is encapsulated with an MPLS label that identifies the service and then tunneled between the PE routers using MPLS LSPs1.

Verified

Reference:Ethernet Virtual Private Networks (EVPNs)

asked 23/09/2024
Ali Reza Farahnak
56 questions

Question 2

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

Nokia 4A0-115 image Question 2 80495 09232024011859000000

1
1
2
2
3
3
4
4
Suggested answer: B
Explanation:

There are two MAC-VRFs in the exhibit, one for each EVI.A MAC-VRF is a logical entity that contains the MAC forwarding information for a given EVI1.

Verified

Reference:Ethernet Virtual Private Networks (EVPNs)

asked 23/09/2024
Tim Klein
40 questions

Question 3

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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 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 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.
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.
The Nokia 7750 SR supports a CE being multi-homed to a maximum of two PEs.
Suggested answer: C
Explanation:

In the all-active mode, all PEs attached to a CE can forward traffic to and from the CE. This provides load balancing and redundancy for the CE.The CE does not require a LAG to be configured between the CE and all attached PEs1.

Verified

Reference:Ethernet Virtual Private Networks (EVPNs)

asked 23/09/2024
Mathias Bergman
27 questions

Question 4

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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.
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.
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 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.
A PE advertises locally-learned MAC addresses to remote PES using EVPN type-2 routes.
Suggested answer: B
Explanation:

Route targets are not used to uniquely identify routes between EVIs in the case of MAC address overlaps. Route targets are used to control the import and export of routes between different EVIs or VRFs.The service distinguisher (label or VNI) is used to uniquely identify each service1.

Verified

Reference:Ethernet Virtual Private Networks (EVPNs)

asked 23/09/2024
Georgescu Andrei
51 questions

Question 5

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

EVPN MAC/IP routes are used to advertise the IP prefixes of subnets attached to a VPRN.
EVPN MAC/IP routes are used to advertise the IP prefixes of subnets attached to a VPRN.
VPRN instances are interconnected using a supplementary broadcast domain (SBD) VPLS.
VPRN instances are interconnected using a supplementary broadcast domain (SBD) VPLS.
Intra-subnet traffic is carried over the tunnels provided by the SBD VPLS.
Intra-subnet traffic is carried over the tunnels provided by the SBD VPLS.
The MAC/IP routing information is used to populate the VPRN routing table at the remote PEs.
The MAC/IP routing information is used to populate the VPRN routing table at the remote PEs.
Suggested answer: C
Explanation:

In the interface-ful model, VPRN instances are interconnected using a supplementary broadcast domain (SBD) VPLS. Intra-subnet traffic is carried over the tunnels provided by the SBD VPLS.The MAC/IP routing information is not used to populate the VPRN routing table at the remote PEs, but rather to populate the FDB of the SBD VPLS2.

Verified

Reference:Nokia Ethernet Virtual Private Network Services Course | Nokia

asked 23/09/2024
Billy Raymond
35 questions

Question 6

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Based upon the exhibit,

Nokia 4A0-115 image Question 6 80499 09232024011859000000

which of the following statements about the forwarding of BUM traffic is FALSE?

PE3 replicates the traffic and sends it to all PES in its VPLS I flooding list.
PE3 replicates the traffic and sends it to all PES in its VPLS I flooding list.
PE3 adds an ESI label to packets forwarded to PEI because PEI is connected to the same Ethernet segment.
PE3 adds an ESI label to packets forwarded to PEI because PEI is connected to the same Ethernet segment.
PEI forwards the traffic received from PE3 to CEI, and CEI discards it based upon the ESI label.
PEI forwards the traffic received from PE3 to CEI, and CEI discards it based upon the ESI label.
PE2 decapsulates the packets received from PE3 and forwards the frames to CE2.
PE2 decapsulates the packets received from PE3 and forwards the frames to CE2.
Suggested answer: B
Explanation:

PE3 does not add an ESI label to packets forwarded to PE1 because PE1 is connected to the same Ethernet segment.PE3 adds an ESI label only to packets forwarded to PEs that are not connected to the same Ethernet segment, such as PE21.

Verified

Reference:Ethernet Virtual Private Networks (EVPNs)

asked 23/09/2024
Gale Morgan
51 questions

Question 7

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In the exhibit,

Nokia 4A0-115 image Question 7 80500 09232024011859000000

MACI moves from PEI to PE2. Which of the following actions related to this MAC address mobility is performed?

CEI generates an update message to PEI withdrawing its MAC.
CEI generates an update message to PEI withdrawing its MAC.
PEI generates an update message to remote PES identifying the new location of CEI.
PEI generates an update message to remote PES identifying the new location of CEI.
PE2 advertises a MAC/IP route for MACI with a sequence number higher than that received from PEI.
PE2 advertises a MAC/IP route for MACI with a sequence number higher than that received from PEI.
PE3 waits to receive a data packet from CEI to update its FDB entry for MACI.
PE3 waits to receive a data packet from CEI to update its FDB entry for MACI.
Suggested answer: C
Explanation:

PE2 advertises a MAC/IP route for MAC1 with a sequence number higher than that received from PE1. This indicates that MAC1 has moved from PE1 to PE2 and triggers a MAC withdrawal message from PE1 to remote PEs.CE1 does not generate an update message to PE1 withdrawing its MAC, nor does PE1 generate an update message to remote PEs identifying the new location of CE11.

Verified

Reference:Ethernet Virtual Private Networks (EVPNs)

asked 23/09/2024
Guus Schenkelaars
35 questions

Question 8

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What are EVPN inclusive multicast Ethernet tag (IMET) routes used for?

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Question 9

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

Nokia 4A0-115 image Question 9 80502 09232024011859000000

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

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Question 10

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

Nokia 4A0-115 image Question 10 80503 09232024011859000000

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Total 40 questions
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Related questions

In the exhibit, the EVPN-IRB is using the interface-ful unnumbered model and is fully operational. Which of the following statements is FALSE?
A Layer-3 EVPN service is configured to use the interface-ful unnumbered forwarding model. Which of the following statements is FALSE?
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?
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?
Which of the following statements about EVPN auto-discovery per EVPN instance (A-D per EVI) routes is FALSE?
An operator configures an EVPN-IRB that uses the interface-ful unnumbered forwarding model on a Nokia 7750 service router. Which of the following statements regarding the configuration performed on each participating PE is FALSE?
Examine the exhibit. Which of the following configuration conditions is required for the proper operation of EVPN VPWS 2?
Examine the exhibit. Which of the following actions is performed by PEI after it receives a BUM packet from CEI?
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?
Based upon the exhibit, how many MAC-VRFs are there?