On a municipal disaster-recovery slide, how should staff contrast availability zones with region pairs?
Select an answer to reveal the explanation.
Short Explanation
Zones are backup buildings in the same city; region pairs are buddy cities farther apart. Do not mash those together on a DR slide. Intra-region versus inter-region — say it out loud before the council meeting.
Full Explanation
On a disaster-recovery slide, availability zones and region pairs operate at different geographic scopes. Availability zones provide separation inside a region—distinct datacenter fault domains for in-region high availability. Region pairs relate separate regions to support broader resiliency and replication planning across a larger distance. Zones address "another building in the same regional metro"; pairs address "a related region farther away."
Saying zones always span two countries while pairs sit inside one rack reverses both concepts. Treating the terms as identical intra-building UPS units invites interchangeable misuse in council DR materials. Limiting region pairs to SaaS mailboxes and zones to cost tags invents nonsense category bindings neither construct has.
Exam caveat: a strong municipal DR story usually layers both—zone redundancy for facility loss and cross-region strategy for regional events—rather than picking one buzzword as a complete answer.
Operational check: split the DR runbook into two tested sections: (1) survive loss of one zone inside the primary region, and (2) recover critical services into the paired or secondary region, with clear ownership and evidence from the latest exercise.