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AZ-305 · High availability

Practice question 224 of 400 · hard

A relational service needs no loss of committed transactions for covered local failovers and also a remote DR copy. Which two design statements are accurate? Select 2 answers.

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  1. A.A VM availability set alone ensures transaction-level synchronous replication
  2. B.An asynchronous remote replica can support regional recovery with a potential recent-write data gap
  3. C.Supported synchronous local replication can protect committed writes during covered failovers at coordination/latency cost
  4. D.Every remote asynchronous replica guarantees zero data loss during forced failover
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✓ Correct answers

  • An asynchronous remote replica can support regional recovery with a potential recent-write data gap
  • Supported synchronous local replication can protect committed writes during covered failovers at coordination/latency cost

Synchronous covered-local and asynchronous regional mechanisms have distinct guarantees. Geographic async writes can lag, and VM placement does not itself implement transaction replication. Source guide: PDF page 41.

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