A data center operator is implementing a VXLAN EVPN fabric to support multiple tenants. Each tenant requires L2 connectivity across the fabric, and the operator wants to ensure that tenant traffic is isolated. Which configuration is necessary to achieve this?

Assign a unique VXLAN VNI to each tenant and configure the VNI on all leaf switches that host that tenant.

Configure a separate VRF for each tenant and use OSPF as the overlay protocol.

Use a different routing instance for each tenant and configure VXLAN on the routing instances.

Assign the same VXLAN VNI to all tenants and rely on VLAN tags for isolation.

A tenant reports that two hosts in the same VXLAN segment cannot communicate. Which systematic troubleshooting step should you perform first?

Check the MAC address table on the leaf switches for the tenant hosts.

Verify that the underlay routing is working by checking BGP sessions and route reachability.

Verify the tenant's virtual machine configuration.

Reboot the leaf switches to clear any temporary issues.

A network architect is designing a new IP fabric for a large data center. The fabric will have multiple spines and leaves, and the architect wants to use EBGP as the underlay. The architect needs to ensure that the underlay is scalable and that route advertisement is efficient. Which best practice should the architect follow?

Use OSPF as the underlay with a single area, and configure route summarization on each leaf.

Use EBGP with a full mesh of sessions between all leaves and spines, and advertise all loopback addresses.

Use a private AS number for each leaf and a different private AS number for each spine, and advertise only loopback and point-to-point link routes.

Use the same AS number for all leaves and a different AS number for all spines, and advertise all routes including tenant subnets.

What is the primary role of VXLAN in an IP fabric overlay?

To enable direct communication between tenants without any encapsulation.

To provide encryption for all data center traffic.

To provide Layer 2 extension over a Layer 3 underlay using encapsulation.

To replace the underlay routing protocol and eliminate the need for BGP or OSPF.

A service provider is deploying a multi-tenant data center fabric using VXLAN EVPN. They need to ensure that each tenant has its own isolated L2 domain and that tenant traffic is encapsulated and forwarded across the IP fabric. Which overlay configuration is essential to achieve this?

Configure a separate routing instance for each tenant and use OSPF as the overlay protocol.

Configure a single VXLAN VNI for all tenants and use VLAN tags to differentiate them.

Configure a unique VXLAN VNI for each tenant and map it to a unique VLAN on the access ports.

Configure the underlay to carry tenant VLANs using QinQ encapsulation.

Juniper NetworksCertified Professional, Data Center (JNCIP-DC)

Domain 2Objective 5

IP Fabric Best Practices JN0-683 Practice Questions (Page 2)

Part of the Layer 3 Fabrics domain, which makes up ~23% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 1–2 from this objective — we provide 14 practice questions to prepare you well beyond it. (estimate)

14questions here

3free pages

5concepts

Questions 6–10

6application · medium
A data center operator is implementing a VXLAN EVPN fabric to support multiple tenants. Each tenant requires L2 connectivity across the fabric, and the operator wants to ensure that tenant traffic is isolated. Which configuration is necessary to achieve this?
Select an answer first
7foundation · easy
A tenant reports that two hosts in the same VXLAN segment cannot communicate. Which systematic troubleshooting step should you perform first?
Select an answer first
8application · medium
A network architect is designing a new IP fabric for a large data center. The fabric will have multiple spines and leaves, and the architect wants to use EBGP as the underlay. The architect needs to ensure that the underlay is scalable and that route advertisement is efficient. Which best practice should the architect follow?
Select an answer first
9foundation · easy
What is the primary role of VXLAN in an IP fabric overlay?
Select an answer first
10application · medium
A service provider is deploying a multi-tenant data center fabric using VXLAN EVPN. They need to ensure that each tenant has its own isolated L2 domain and that tenant traffic is encapsulated and forwarded across the IP fabric. Which overlay configuration is essential to achieve this?
Select an answer first

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