350-601 Storage Network Practice Question
A storage administrator is implementing synchronous replication between two storage arrays over a Fibre Channel link. Which three characteristics are true of synchronous replication? (Choose three.)
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
✓
It requires a high-bandwidth, low-latency link between the arrays.
Synchronous replication writes data to both arrays before acknowledging the write, ensuring zero data loss but adding latency and requiring high bandwidth.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It is suitable for long-distance replication over hundreds of kilometers.
Why it's wrong here
Synchronous replication is typically limited to short distances due to latency.
- ✓
It requires a high-bandwidth, low-latency link between the arrays.
Why this is correct
Latency directly impacts performance.
- ✓
The write is acknowledged to the host only after it is committed on both the primary and secondary arrays.
Why this is correct
This ensures data consistency.
- ✓
It provides the lowest possible recovery point objective (RPO).
Why this is correct
RPO is typically zero because data is mirrored in real time.
- ✗
It uses less bandwidth than asynchronous replication.
Why it's wrong here
Synchronous replication often uses more bandwidth because data is written continuously.
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