350-601 Storage Network Practice Question
A storage array supports both synchronous and asynchronous replication. The application requires zero data loss in case of a site failure. Which replication type should be chosen?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Synchronous replication
Synchronous replication writes data to the primary and secondary storage before acknowledging the write, ensuring zero data loss (RPO=0). Asynchronous replication may have some lag.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Synchronous replication
Why this is correct
Synchronous replication guarantees zero data loss as data must be written to both sites.
- ✗
Asynchronous replication
Why it's wrong here
Asynchronous replication may have a lag, leading to potential data loss.
- ✗
Thin provisioning
Why it's wrong here
Thin provisioning is about capacity allocation, not replication.
- ✗
Snapshot-based replication
Why it's wrong here
Snapshots are not replication; they are point-in-time copies.
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