AZ-900 Practice Question 14: Region Pairs
Microsoft Azure Fundamentals (AZ-900) · Test 2 · question 4 of 10
An architect is choosing a secondary Azure region and asks what a *region pair* actually buys compared with picking any other region. Which statement is correct?
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Answer:
Microsoft documents three benefits of a region pair: a region recovery sequence, in a geography-wide outage one region in every pair is prioritized for recovery; sequential updating, planned platform updates are staggered across the pair so a faulty update cannot hit both at once; and data residency, almost all regions sit in the same geography as their pair.
Option A is the classic trap, and the documentation warns against it directly: deploying into a paired region does not by itself give high availability, disaster recovery, or failover, and you must still design your own plan. Option B is unrelated to pairing; many newer regions rely on availability zones instead and have no pair at all. Option D overstates it: only a small number of services use region pairs, and geo-replication such as GRS copies data to the secondary asynchronously, not synchronously.
Reference: Azure region pairs and nonpaired regions