A company is consolidating two data centers into a single logical network. The applications are all IP-based and do not require Layer 2 adjacency. The network team wants to provide seamless IP mobility for workloads that may move between sites, while avoiding the complexity of stretching VLANs. Which design best meets these requirements?

Use static routes between the sites for each workload subnet

Stretch the VLANs using EVPN-VXLAN and place the gateway at one site

Use VPLS to extend the VLANs and rely on the application's ARP cache for mobility

Use an IP fabric with OSPF or BGP between the sites and advertise the workload subnets from both sites

Which use case is a typical reason to stretch Layer 2 between data center sites?

Supporting live migration of virtual machines between sites without changing IP addresses

Increasing the bandwidth available between sites

Reducing the number of routing protocols needed in the data center

Eliminating the need for firewalls between sites

How is multihoming achieved in an EVPN-VXLAN DCI?

By connecting a site to multiple PEs and using all-active or single-active modes

By using STP to block redundant links

Why is failure domain isolation an important design consideration in DCI?

To increase the number of VLANs

To prevent a failure in one site from affecting the entire network

To reduce the need for encryption

A company is designing a DCI for a set of applications that are all IP-based and do not require Layer 2 adjacency. The network team wants to provide IP mobility so that workloads can move between sites without changing their IP addresses. Which design approach is most appropriate?

Use VPLS to stretch the VLANs and rely on the application's ARP cache

Use EVPN with IP-VRF to advertise the same subnets from both sites

Use static routes for each workload subnet

Use OSPF with a single area spanning both sites

Juniper NetworksCertified Professional, Data Center (JNCIP-DC)

Domain 5Objective 2

Layer 2 and Layer 3 Stretch 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 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

9concepts

Questions 16–20

16application · medium
A company is consolidating two data centers into a single logical network. The applications are all IP-based and do not require Layer 2 adjacency. The network team wants to provide seamless IP mobility for workloads that may move between sites, while avoiding the complexity of stretching VLANs. Which design best meets these requirements?
Select an answer first
17foundation · easy
Which use case is a typical reason to stretch Layer 2 between data center sites?
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18foundation · easy
How is multihoming achieved in an EVPN-VXLAN DCI?
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19foundation · easy
Why is failure domain isolation an important design consideration in DCI?
Select an answer first
20application · medium
A company is designing a DCI for a set of applications that are all IP-based and do not require Layer 2 adjacency. The network team wants to provide IP mobility so that workloads can move between sites without changing their IP addresses. Which design approach is most appropriate?
Select an answer first

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