Juniper JN0-664 Exam - Topic 4 Question 12 Discussion

Actual exam question for Juniper's JN0-664 exam

Question #: 12
Topic #: 4

Exhibit

You want Site 1 to access three VLANs that are located in Site 2 and Site 3 The customer-facing interface on the PE-1 router is configured for Ethernet-VLAN encapsulation.

What is the minimum number of L2VPN routing instances to be configured to accomplish this task?

Show Suggested Answer

Suggested Answer: B

To allow Site 1 to access three VLANs that are located in Site 2 and Site 3, you need to configure three L2VPN routing instances on PE-1, one for each VLAN. Each L2VPN routing instance will have a different VLAN ID and a different VNI for VXLAN encapsulation. Each L2VPN routing instance will also have a different vrf-target export value to identify which VPN routes belong to which VLAN. This way, PE-1 can forward traffic from Site 1 to Site 2 and Site 3 based on the VLAN tags and VNIs.

by Serina at Oct 03, 2023, 02:52 PM

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Hannah

5 months ago

I agree with Elizabeth, 2 makes more sense!

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Leonora

5 months ago

Wait, are we sure about that? Seems off to me.

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Lashandra

5 months ago

Definitely 1 instance needed for this setup.

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Elizabeth

5 months ago

Nah, it should be 2 instances max.

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Mozell

5 months ago

I think it's 3 L2VPN instances.

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Linn

6 months ago

I’m leaning towards 3 because each VLAN might need its own instance, but I wish I had reviewed that section more thoroughly.

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Kendra

6 months ago

I feel like the answer is 1, since it might handle all VLANs in a single instance, but I can't recall the specifics.

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Dierdre

6 months ago

I remember a practice question where we had to configure multiple VLANs, and I think it was 2 instances. Could that be the case here too?

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Jose

6 months ago

I think we need at least one L2VPN instance for each VLAN, so maybe 3? But I'm not entirely sure if they can be combined somehow.

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Glory

6 months ago

Okay, I think I've got this. Since Site 1 needs to access 3 VLANs in Site 2 and Site 3, the minimum number of L2VPN routing instances would be 2, one for each site.

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Annmarie

6 months ago

Hmm, I'm a bit unsure about this one. The customer-facing interface configuration is throwing me off. I'll need to review the details carefully to make sure I understand the setup.

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Barrett

6 months ago

This looks like a straightforward VLAN connectivity question. I'll need to think through the requirements and the options to determine the minimum number of L2VPN routing instances.

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Isadora

6 months ago

I'm feeling confident about this one. The key is that the customer-facing interface is configured for Ethernet-VLAN encapsulation, which means we only need a single L2VPN routing instance to connect the 3 VLANs.

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Johana

6 months ago

Hmm, the question mentions the routes are missing from the routing tables, even though they are in the OSPF database. I wonder if there's an issue with the OSPF adjacency or network type configuration.

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Nadine

6 months ago

I remember learning about the `priocnt1` command in class, but I can't recall if that's the one that shows the scheduling class. I'll have to guess on this one.

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Twila

6 months ago

This seems like a straightforward question. I'd go with enabling email approval and mobile lite for approval processes. That should give the CEO the flexibility he needs.

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