Which Service Bus feature enables a queue or topic to be replicated across two Azure regions for disaster recovery, with failover supported by metadata replication?
- A Geo-replication (Premium active-passive) (correct answer)
- B Active geo-replication
- C Zone redundancy
- D Cross-region queues
Shortcut: Geo-disaster recovery (alias pairing) replicates namespace metadata across paired namespaces. On failover, the alias is remapped to the secondary. Messages are NOT replicated — only the namespace entity configuration.