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Juniper JN0-683 Exam - Topic 6 Question 30 Discussion

Exhibit.Referring to the configuration shown in the exhibit, assume that there is no external router present, and that the configuration is fabric-only.Which two statements are true about the example configuration? (Choose two.)
B) Devices in irb.400 (vlan 400) are not able to communicate directly with devices in routing instance Customer A. and D) Devices in irb.400 (vlan 400) and irb.800 (vlan 800) are able to communicate over the fabric.
A) VNI 10006 is assigned to vlan 800 (irb.800).
C) Devices in routing instance Customer A are able to communicate with devices in routing instance Customer B

Juniper JN0-683 Exam - Topic 6 Question 30 Discussion

Actual exam question for Juniper's JN0-683 exam
Question #: 30
Topic #: 6
[All JN0-683 Questions]

Exhibit.

Referring to the configuration shown in the exhibit, assume that there is no external router present, and that the configuration is fabric-only.

Which two statements are true about the example configuration? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: B, D

Understanding the Configuration:

The exhibit shows configurations for two VRFs (Customer_A and Customer_B) with specific VLANs and VNIs assigned. Each VRF has interfaces (IRBs) associated with particular VLANs.

Communication Between VLANs and Routing Instances:

Option B: VLAN 400 (irb.400) is part of Customer_B, and there is no direct connection or routing between Customer_A and Customer_B in the configuration provided. Therefore, devices in irb.400 cannot communicate directly with devices in the Customer_A routing instance.

Option D: Since irb.400 (VLAN 400) and irb.800 (VLAN 800) are part of the same routing instance (Customer_B), they can communicate over the fabric using VXLAN encapsulation.

Conclusion:

Option B: Correct---There is no direct communication between devices in irb.400 (Customer_B) and routing instance Customer_A.

Option D: Correct---Devices in VLAN 400 and VLAN 800 can communicate within the Customer_B routing instance over the fabric.


by Alana at Nov 22, 2025, 09:51 PM

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Gerald
3 months ago
I’m not sure about A. Could it be possible that VNI 10006 is misconfigured?
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Cordie
3 months ago
A and B make sense. The configuration looks solid for those options.
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Katina
3 months ago
I disagree with D. irb.400 and irb.800 shouldn’t communicate directly.
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Franchesca
3 months ago
I’m leaning towards A and D. Communication over the fabric seems plausible.
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Clarence
3 months ago
I feel like B is definitely true. No direct communication in different routing instances.
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Catarina
4 months ago
Wait, are we really saying Customer A and B can talk? That’s wild!
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Vanda
4 months ago
D) is incorrect, irb.400 and irb.800 can't communicate directly.
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Emeline
4 months ago
C) seems right, but I’m not sure about the specifics.
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France
5 months ago
I disagree, B) is misleading; they can communicate indirectly.
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Sean
5 months ago
Hmm, I think I need to review my VXLAN knowledge again.
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Deja
5 months ago
Haha, this question is a piece of cake! A and D all the way.
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Alisha
5 months ago
B and D are the right answers here.
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Lorrie
5 months ago
A and C seem correct to me.
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Wynell
5 months ago
D is definitely true, but I'm not sure about C.
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Hermila
6 months ago
A and D are correct.
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Buddy
6 months ago
I believe devices in Customer A and Customer B can communicate, but I need to recall how the routing instances were set up in the examples we practiced.
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Carisa
6 months ago
I'm uncertain about the communication between irb.400 and irb.800; I thought they might be isolated, but I need to double-check that.
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Carey
6 months ago
I remember a practice question where we discussed routing instances, and I feel like devices in different instances can't communicate directly.
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Audry
6 months ago
I feel pretty confident about this one. The key is to focus on the relationships between the VLANs, routing instances, and the fabric configuration.
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Alonzo
6 months ago
Okay, let's take this step-by-step. I'll start by looking at the VNI assignments and then consider the communication paths between the different network segments.
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Bette
7 months ago
A) is definitely true, VNI 10006 is linked to vlan 800.
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Dominque
7 months ago
I think A and B are correct. VNI 10006 should link to vlan 800.
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Tresa
7 months ago
This is a good opportunity to apply my knowledge of Juniper networking concepts. I'll need to think through the implications of the fabric-only setup.
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Carey
7 months ago
I think VNI 10006 is linked to vlan 800, but I'm not completely sure about the specifics of the irb configurations.
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Carin
8 months ago
Hmm, I'm a bit confused by the fabric-only requirement. I'll need to make sure I understand how that affects the communication between the different VLANs and routing instances.
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Crista
8 months ago
This looks like a tricky configuration question. I'll need to carefully analyze the exhibit and the statements to determine which ones are true.
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Edelmira
2 months ago
Let’s not forget about D. They might communicate over the fabric!
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Filiberto
2 months ago
I feel like C is a possibility too. Communication between instances is key.
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Gregg
2 months ago
I agree with A, but B seems off to me.
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Yvette
3 months ago
I’m leaning towards A and D. What do you think?
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Leontine
7 months ago
This is definitely tricky! I think A and B could be true.
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