How do VTEPs in different data centers establish VXLAN tunnels?

They use BGP EVPN to exchange VTEP IP addresses and VNI information.

They are manually configured with static VXLAN tunnels.

They use multicast to discover each other.

They use OSPF to discover each other and form tunnels.

When configuring VLAN-to-VNI mapping across sites for a DCI, what must be ensured for consistent Layer 2 connectivity?

Each site must use a different VNI for the same VLAN to avoid conflicts.

The VNI must be the same as the VLAN ID.

The VLAN ID must be globally unique across all sites.

The same VLAN ID must map to the same VNI on all VTEPs that participate in that Layer 2 domain.

A network administrator is configuring EVPN-VXLAN DCI between two sites. They have configured VLAN 100 on the access ports of the leaf switches in both sites. They want to ensure that VLAN 100 is extended across the DCI. What must be configured on the leaf switches to ensure this VLAN is mapped to the correct VNI and advertised via EVPN?

Configure the VLAN only on the spine switches, not on the leaf switches.

Configure the VLAN with a different VNI on each site and rely on the route target to map them.

Configure the same VNI (e.g., 50100) for VLAN 100 on both sites, and ensure the VNI is associated with the EVPN instance.

Configure different VNIs for VLAN 100 on each site to avoid conflicts.

What is the primary function of a Layer 3 gateway at the DCI edge?

To provide DHCP services to hosts.

To route traffic between different subnets or VLANs across the DCI.

To filter traffic based on MAC addresses.

To bridge Layer 2 traffic between sites.

Juniper NetworksCertified Professional, Data Center (JNCIP-DC)

Domain 5Objective 4

EVPN-signaled VXLAN for DCI JN0-683 Practice Questions (Page 4)

Part of the Data Center Interconnect domain, which makes up ~20% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 34 practice questions to prepare you well beyond it. (estimate)

34questions here

7free pages

11concepts

Questions 16–20

16foundation · easy
How do VTEPs in different data centers establish VXLAN tunnels?
Select an answer first
17foundation · easy
When configuring VLAN-to-VNI mapping across sites for a DCI, what must be ensured for consistent Layer 2 connectivity?
Select an answer first
18application · medium
A network administrator is configuring EVPN-VXLAN DCI between two sites. They have configured VLAN 100 on the access ports of the leaf switches in both sites. They want to ensure that VLAN 100 is extended across the DCI. What must be configured on the leaf switches to ensure this VLAN is mapped to the correct VNI and advertised via EVPN?
Select an answer first
19foundation · easy
Which command on a Juniper device would you use to verify the VLAN-to-VNI mapping on a VTEP?
Select an answer first
20foundation · easy
What is the primary function of a Layer 3 gateway at the DCI edge?
Select an answer first

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EVPN-signaled VXLAN for DCI JN0-683 Practice Questions (Page 4)

Questions 16–20

How do VTEPs in different data centers establish VXLAN tunnels?

When configuring VLAN-to-VNI mapping across sites for a DCI, what must be ensured for consistent Layer 2 connectivity?

Which command on a Juniper device would you use to verify the VLAN-to-VNI mapping on a VTEP?

What is the primary function of a Layer 3 gateway at the DCI edge?

Keep studying — Data Center Interconnect