CompTIA Cloud+ Practice Test

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Prepare for the CompTIA Cloud+ Test. Utilize flashcards and multiple choice questions, with hints and explanations for each question. Ensure your readiness for success in this certification exam.

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During a disaster recovery test, which of the following is essential for data consistency?

Snapshot backups
Synchronous replication
Incremental backups
External storage

The correct answer is: Synchronous replication

Synchronous replication is essential for data consistency during a disaster recovery test because it ensures that data is replicated in real-time to a secondary location. This means that any changes made to the primary data are promptly mirrored to the backup system, thereby maintaining an identical state between the two. This real-time synchronization minimizes the risk of data loss or inconsistency, making it critical for organizations that require high availability and immediate recovery capabilities. Other methods of data protection, such as snapshot backups, may allow for quick restoration but may not guarantee that the most current state of data is captured, especially if a disaster strikes shortly after a snapshot is taken. Incremental backups, which only back up changes made since the last backup, can also lead to data inconsistency if not managed properly, as they depend on previous backup states and can result in a longer recovery time. External storage, while useful for holding backups, does not inherently provide the consistency needed for recovery, as it lacks the mechanisms to ensure real-time data mirroring. Therefore, synchronous replication stands out as the most reliable method to ensure data consistency in disaster recovery scenarios.