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Juniper JN0-664 Exam - Topic 8 Question 9 Discussion

You are a network architect for a service provider and want to offer Layer 2 services to your customers You want to use EVPN for Layer 2 services in your existing MPLS network.Which two statements are correct in this scenario? (Choose two.)
C) EVPN uses Type 2 routes to advertise MAC address and IP address pairs learned using ARP snooping
A) Segment routing must be configured on all PE routers.
B) VXLAN must be configured on all PE routers.
D) EVPN uses Type 3 routes to join a multicast tree to flood traffic.

Juniper JN0-664 Exam - Topic 8 Question 9 Discussion

Actual exam question for Juniper's JN0-664 exam
Question #: 9
Topic #: 8
[All JN0-664 Questions]

You are a network architect for a service provider and want to offer Layer 2 services to your customers You want to use EVPN for Layer 2 services in your existing MPLS network.

Which two statements are correct in this scenario? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: C

BGP signaled Layer 2 VPN is a type of VPN that uses BGP to distribute VPN labels and information for Layer 2 connectivity between sites over an MPLS network.BGP signaled Layer 2 VPN requires the support of the l2vpn NLRI on all core BGP devices1. The l2vpn NLRI is a new address family that carries Layer 2 VPN information such as the VPN identifier, the attachment circuit identifier, and the route distinguisher.The l2vpn NLRI is used for both auto-discovery and signaling of Layer 2 VPNs2. In this scenario, we are configuring a BGP signaled Layer 2 VPN across an MPLS enabled core network. Therefore, we need to ensure that all core BGP devices support the l2vpn NLRI.


by Lavera at Jul 27, 2023, 06:43 AM

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Freida
9 months ago
Totally agree, Type 2 routes are key for ARP snooping!
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Rodolfo
9 months ago
Not sure about that multicast tree thing, sounds off.
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Alton
10 months ago
VXLAN is definitely needed on PE routers for EVPN.
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Adelle
10 months ago
I thought Segment routing was optional for EVPN?
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France
10 months ago
EVPN does use Type 2 routes for MAC and IP pairs.
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Azzie
10 months ago
I recall that Type 3 routes are related to multicast, but I can't quite remember how they fit into the overall EVPN architecture.
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Lai
10 months ago
I practiced a question similar to this, and I feel like Segment routing isn't a requirement for EVPN, but I could be wrong.
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Viva
11 months ago
I think Type 2 routes are definitely used for advertising MAC and IP pairs, but I'm a bit confused about the specifics of ARP snooping.
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Audry
11 months ago
I remember that EVPN can work with VXLAN, but I'm not sure if it has to be configured on all PE routers.
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Monroe
11 months ago
This seems like a tricky question. I'll need to think through the different policy options carefully to make sure I understand the nuances.
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Mollie
11 months ago
This is a straightforward question. The textbook clearly states there are seven risk response types for negative risks. I've got this one covered.
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Franchesca
11 months ago
Wait, where exactly do I need to go in the portal? Is it under Inventory management or Setup? I want to make sure I'm in the right place before I start making changes. Gotta double-check the instructions.
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Shakira
11 months ago
Hmm, I'm a bit confused about the purpose of MAC addresses. I know they're used for network identification, but I'm not sure if it's for routers, switches, or devices. I'll have to think this through carefully.
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Nieves
1 year ago
I wonder if the exam writer has ever actually configured EVPN in a real network. Probably not, or they wouldn't be asking such tricky questions!
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Janessa
1 year ago
I agree, these questions can be quite tricky sometimes!
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Noe
1 year ago
C) EVPN uses Type 2 routes to advertise MAC address and IP address pairs learned using ARP snooping
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Domingo
1 year ago
A) Segment routing must be configured on all PE routers.
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Vernice
1 year ago
Wait, does EVPN require me to be a mind reader to figure out the correct answers? I'll just go with my gut and pick C and D.
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Evangelina
1 year ago
Ah, segment routing isn't necessary for basic EVPN functionality. I'll steer clear of A. C and D sound like the right choices here.
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Krystal
1 year ago
I think we can skip segment routing and choose C and D for EVPN services.
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Veronika
1 year ago
Yes, A is not necessary for EVPN. Let's select C and D for this scenario.
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Joseph
1 year ago
VXLAN is not needed for EVPN, so we can eliminate B. C and D are the correct choices.
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Irene
1 year ago
I agree, segment routing is not required for EVPN. Let's go with C and D.
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Lelia
1 year ago
Hmm, B seems like a trap answer. VXLAN is for encapsulating Layer 2 traffic, not a requirement for EVPN. I'll go with C and D.
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Ludivina
1 year ago
Segment routing is not required for EVPN, so A is not correct. VXLAN is not a must, so B is not needed.
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Florencia
1 year ago
D is also correct because EVPN uses Type 3 routes to flood traffic. Good choices!
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Salley
1 year ago
I agree, B is not necessary for EVPN. C is correct because EVPN uses Type 2 routes for MAC and IP address pairs.
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Octavio
1 year ago
C and D are correct. EVPN uses Type 2 routes for MAC/IP address learning and Type 3 routes for multicast forwarding. I'm glad I brushed up on my EVPN knowledge before the exam!
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Renea
1 year ago
I agree. Knowing the details of EVPN will definitely help in providing Layer 2 services to our customers.
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Tu
1 year ago
That's right! It's important to understand the different route types in EVPN for efficient network design.
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Tammy
1 year ago
C and D are correct. EVPN uses Type 2 routes for MAC/IP address learning and Type 3 routes for multicast forwarding.
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Mozell
1 year ago
I'm not sure about B and D, but I think A and C make sense for offering Layer 2 services with EVPN.
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Curtis
1 year ago
I agree with Hannah. Also, I believe C is correct as EVPN does use Type 2 routes for MAC and IP address pairs.
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Hannah
1 year ago
I think A is correct because segment routing is essential for EVPN.
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