Juniper JN0-682 Exam (page: 5)
Juniper Data Center, Professional
Updated on: 25-Dec-2025

Viewing Page 5 of 32

Referring to the exhibit, you have a data center with two PODs. Seamless EVPN-VXLAN stitching is used to facilitate communication between the PODs.



Which three statements are true in this scenario? (Choose three.)

  1. AVXLAN tunnel can form between L2 and S1.
  2. A VXLAN tunnel can form between S1 and S2.
  3. AVXLAN tunnel can form between L1 and L2.
  4. AVXLAN tunnel can form between L2 and S3.
  5. AVXLAN tunnel can form between L1 and L4.

Answer(s): A,B,D



A customer wants to connect two data centers on different subnets using EVPN.
What are two implications of using different IP subnets at each site? (Choose two.)

  1. Using different IP subnets at each site allows Layer 3 gateways to exchange only type-3 routes.
  2. MAC addresses will need to be advertised between the data centers.
  3. MAC addresses will not need to be advertised between the data centers.
  4. Using different IP subnets at each site allows Layer 3 gateways to exchange only type-5 routes.

Answer(s): B,D

Explanation:

When connecting two data centers on different subnets using EVPN, MAC addresses need to be advertised between the data centers to maintain Layer 2 connectivity. Using different subnets implies the need for Layer 3 gateways at each site, which typically involve exchanging type-5 routes in an EVPN context.


Reference:

EVPN for Data Center Interconnect



You want to enable an EBGP-based IP fabric to allow ECMP routes to be populated into the RIB. In this scenario, which action will accomplish this task?

  1. Enable the forwarding-options ecmp-do-local-lookup parameter.
  2. Enable the multipath multiple-as BGP parameter.
  3. Enable the routing-options multipath global parameter.
  4. Enable the chassis ecmp-alb parameter.

Answer(s): B

Explanation:

To enable ECMP (Equal-Cost Multi-Path) routes in the Routing Information Base (RIB) in an EBGP- based IP fabric, you should enable the 'multipath multiple-as' BGP parameter. This setting allows the use of multiple paths for BGP routes even when they come from different autonomous systems, which is key in a typical EBGP deployment in a data center IP fabric.


Reference:

BGP and Multipath Routing



Which two statements are true about VRF routing instances? (Choose two.)

  1. VRF can be used in conjunction with Layer 3 logical interfaces.
  2. Each logical Layer 3 interface can belong to only one routing instance.
  3. Each logical Layer 3 interface can belong to multiple routing instances.
  4. VRF does not enable multitenancy.

Answer(s): A,B

Explanation:

VRF (Virtual Routing and Forwarding) instances can be used in conjunction with Layer 3 logical interfaces. Each logical Layer 3 interface can belong to only one VRF, maintaining separation and isolation of routing tables, which is essential for multitenancy and network segmentation.


Reference:

VRF Lite Configuration



Referring to the exhibit, you want to advertise the IRB routes between both routing instances.





Which two configuration parameters would be applied to accomplish this task? (Choose two.)

  1. Apply policy irb-A under instance Tenant_c and apply policy irb-c under instance Tenant_A as import policies.
  2. Configure auto-export under both routing instances.
  3. Configure vrf-table-label under both routing instances.
  4. Apply policy irb-A under instance Tenant A and apply policy irb-c under instance Tenant_c as export policies.

Answer(s): A,C



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