Department apps will resolve names across on-premises DNS and Amazon Route 53 private zones during a staggered municipal cutover. What must the migration approach include to avoid post-cutover black holes?
Select an answer to reveal the explanation.
Short Explanation
If DNS goes dark at cutover, the app might as well be on the moon. Build hybrid DNS with Route 53 so on-prem and AWS names keep answering while waves stagger—don't bet the city on /etc/hosts.
Full Explanation
DNS strategy is part of the migration approach. Hybrid DNS designs using Route 53 private hosted zones and Route 53 Resolver inbound/outbound endpoints prevent resolution black holes when apps span on-premises and AWS during staggered cutovers. Deleting zones, using only public resolvers, or manual hosts files do not scale safely.