DEA-C01 Data Store Management Practice Question
Network Topology
Refer to the exhibit. A data engineer ran the CLI command to check the configuration of an RDS instance named 'mydb'. Which statement accurately describes the current configuration?
⚠ Common exam trap
AWS often tests the misconception that a database with 'available' status must be a read replica or Multi-AZ, but the absence of the 'ReadReplicaSourceDBInstanceIdentifier' and 'MultiAZ: False' clearly identify it as a standalone Single-AZ instance.
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
✓
The database is a Single-AZ deployment and is not a read replica
The CLI command output shows 'DBInstanceStatus: available' and 'MultiAZ: False', indicating the database is running as a Single-AZ deployment. Additionally, the absence of a 'SourceDBInstanceIdentifier' field confirms it is not a read replica. The 'ReadReplicaSourceDBInstanceIdentifier' is not present, which would be required if it were a read replica.
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 database is in the 'stopped' state
Why it's wrong here
DBInstanceStatus is 'available'.
- ✓
The database is a Single-AZ deployment and is not a read replica
Why this is correct
MultiAZ False and no ReadReplicaSourceDBInstanceIdentifier.
- ✗
The database is a read replica of another instance
Why it's wrong here
ReadReplicaSourceDBInstanceIdentifier is None.
- ✗
The database is a Multi-AZ deployment
Why it's wrong here
MultiAZ is False.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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