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Guide for 4A0-115: Nokia Ethernet Virtual Private Network Services

Quiz 4A0-115: Nokia Ethernet Virtual Private Network Services

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/ 10

Quiz

1/10
Which of the following statements about the EVPN data plane is FALSE?
Select the answer
1 correct answer
A.
EVPN allows a service provider to deliver multiple services over a single core network.
B.
The customer data is encapsulated and then tunneled between the PE routers.
C.
EVPN-MPLS encapsulated data has a label that uniquely identifies each service.
D.
EVPN-MPLS provides services over a simple IP network.

Quiz

2/10
Based upon the exhibit, how many MAC-VRFs are there?


Certification Exam 4A0-115: Nokia Ethernet Virtual Private Network Services Nokia Nokia-4A0-115 2-2390810843
Select the answer
1 correct answer
A.
1
B.
2
C.
3
D.
4

Quiz

3/10
Which of the following statements about multi-homing for a Layer-2 service is TRUE?
Select the answer
1 correct answer
A.
In the single-active mode, the CE requires a LAG to be configured between the CE and all attached
PEs.
B.
In the single-active mode, the CE forwards traffic to all attached PES and receives traffic from a
single PE.
C.
In the all-active mode, all PES attached to a CE can forward traffic to and from the CE.
D.
The Nokia 7750 SR supports a CE being multi-homed to a maximum of two PEs.

Quiz

4/10
Which of the following statements about PE-to-PE MAC address advertisement is FALSE?
Select the answer
1 correct answer
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.

Quiz

5/10
Which of the following statements about EVPN Layer-3 services that utilize the interface-ful model is
TRUE?
Select the answer
1 correct answer
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.

Quiz

6/10
Based upon the exhibit,




Certification Exam 4A0-115: Nokia Ethernet Virtual Private Network Services Nokia Nokia-4A0-115 3-47348726




which of the following statements about the forwarding of BUM traffic is FALSE?
Select the answer
1 correct answer
A.
PE3 replicates the traffic and sends it to all PES in its VPLS I flooding list.
B.
PE3 adds an ESI label to packets forwarded to PEI because PEI is connected to the same Ethernet
segment.
C.
PEI forwards the traffic received from PE3 to CEI, and CEI discards it based upon the ESI label.
D.
PE2 decapsulates the packets received from PE3 and forwards the frames to CE2.

Quiz

7/10
In the exhibit,




Certification Exam 4A0-115: Nokia Ethernet Virtual Private Network Services Nokia Nokia-4A0-115 4-1698996




MACI moves from PEI to PE2. Which of the following actions related to this MAC address mobility is
performed?
Select the answer
1 correct answer
A.
CEI generates an update message to PEI withdrawing its MAC.
B.
PEI generates an update message to remote PES identifying the new location of CEI.
C.
PE2 advertises a MAC/IP route for MACI with a sequence number higher than that received from
PEI.
D.
PE3 waits to receive a data packet from CEI to update its FDB entry for MACI.

Quiz

8/10
What are EVPN inclusive multicast Ethernet tag (IMET) routes used for?
Select the answer
1 correct answer
A.
To advertise the MAC or MAC/IP addresses of locally-learned hosts
B.
To advertise the redundancy mode of a local Ethernet segment
C.
To discover all PES participating in the same VPIS service
D.
To discover all PES attached to the same Ethernet segment

Quiz

9/10
Based on the exhibit below, which of the following statements is FALSE?



Certification Exam 4A0-115: Nokia Ethernet Virtual Private Network Services Nokia Nokia-4A0-115 5-2151467048




When forwarding BUM traffic, the local PE must replicate the traffic and send it as unicast to the
advertising neighbor.
Select the answer
1 correct answer
A.
The MPLS label 524284 presented indicates the service label value that the neighbor 10.10.10.2
uses to forward BUM traffic to PEI.
B.
When forwarding BUM traffic, the local PE uses an MPLS transport tunnel towards the advertising
neighbor.
C.
The IMET route is imported by a local VPLS configured with a route-target value of 65100:10.

Quiz

10/10
Based on the exhibit below, which of the following statements is TRUE?



Certification Exam 4A0-115: Nokia Ethernet Virtual Private Network Services Nokia Nokia-4A0-115 6-1316829361
Select the answer
1 correct answer
A.
PE2 advertises this BGP update for a locally-configured VPWS service.
B.
PEI uses this BGP update to build the flooding list of the associated service.
C.
PEI uses MPLS label 524284 when sending traffic destined to
D.
Neighbor 10.10.10.2 is connected to a multi-homed CE.
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