A citizen-identity application must keep the same Layer-2 subnet active in both municipal data centers. Which DCI stretch approach matches that requirement?
Select an answer to reveal the explanation.
Short Explanation
Same subnet alive in both halls means the Layer-2 neighborhood has to stretch. That is L2 DCI stretch extending the broadcast domain or VNI—not Type-5-only routed prefixes.
Full Explanation
Layer-2 stretch extends a broadcast domain or corresponding VNI so the same subnet can be active across data centers. That supports applications that require shared L2 adjacency or unbroken IP/MAC presence at both sites. Pure L3 prefix exchange without L2 stretch does not keep one live Layer-2 subnet spanning both halls.