Question 1,145 of 1,663
DBS-C01 Management and Operations Practice Question
Exhibit
Refer to the exhibit.
Exhibit: AWS CLI output
```json
{
"DBClusters": [
{
"DBClusterIdentifier": "mydbcluster",
"Engine": "aurora-mysql",
"Status": "available",
"EarliestRestorableTime": "2023-12-01T00:00:00Z",
"LatestRestorableTime": "2023-12-05T12:00:00Z",
"BackupRetentionPeriod": 7,
"DBClusterMembers": [
{
"DBInstanceIdentifier": "mydbcluster-instance-1",
"IsClusterWriter": true,
"DBInstanceStatus": "available"
},
{
"DBInstanceIdentifier": "mydbcluster-instance-2",
"IsClusterWriter": false,
"DBInstanceStatus": "available"
}
]
}
]
}
```A database administrator runs the 'describe-db-clusters' CLI command and sees the above output. The earliest restorable time is December 1, 2023. However, the backup retention period is 7 days. Why is the earliest restorable time earlier than 7 days from now (assuming today is December 5, 2023)?
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
✓
Automated backups are only kept for 7 days, but manual snapshots extend the recovery window.
The earliest restorable time shown is December 1, 2023, which is earlier than the 7-day backup retention period (which would be November 28, 2023 from today December 5, 2023). This discrepancy occurs because manual snapshots taken prior to the automated backup window extend the restorable range. While automated backups are retained for only 7 days, manual snapshots persist independently and can provide restore points further back in time, effectively making the earliest restorable time earlier than the automated retention period alone would allow.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The backup retention period is misconfigured; it should be 30 days.
Why it's wrong here
The backup retention period shows 7 days, but the earliest restorable time is still December 1, which is inconsistent.
- ✗
The cluster was created on December 1, so that is the earliest point available.
Why it's wrong here
If the cluster was created on December 1, the earliest restorable time would be the creation time, but that is not necessarily the case.
- ✓
Automated backups are only kept for 7 days, but manual snapshots extend the recovery window.
Why this is correct
Manual snapshots, when taken, can extend the earliest restorable time beyond the automated backup retention period.
- ✗
The 'earliestRestorableTime' is calculated based on the latest transaction log, not backup retention.
Why it's wrong here
Transaction logs are retained for the same period as backups, so this does not explain the discrepancy.
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Last reviewed: Jun 20, 2026
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