Quick Answer
The correct conclusion is that the database is a Multi-AZ deployment with a standby in a different Availability Zone. This is confirmed because the CLI output shows `"MultiAZ":true` alongside the `"SecondaryAvailabilityZone":"us-east-1b"` field, which explicitly indicates a standby instance is provisioned in a separate AZ for high availability. On the AWS Certified Database Specialty DBS-C01 exam, identifying Multi-AZ RDS deployment from describe output tests your ability to distinguish between Multi-AZ, Single-AZ, Read Replicas, and Aurora clusters. A common trap is confusing a Read Replica with a Multi-AZ standby, but Read Replicas use the `ReadReplicaSourceDBInstanceIdentifier` field, not `SecondaryAvailabilityZone`. For memory, remember that Multi-AZ always pairs `MultiAZ: true` with a secondary zone, while Single-AZ omits the secondary zone entirely.
This DBS-C01 practice question tests your understanding of deployment and migration. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Refer to the exhibit. A database administrator runs the AWS CLI command and gets the following output: {"Engine":"mysql","DBInstanceStatus":"available","MultiAZ":true,"SecondaryAvailabilityZone":"us-east-1b"}. What can be concluded about the database deployment?
The database is a Single-AZ deployment.
Why wrong: MultiAZ is true.
The database has a Read Replica in a different Availability Zone.
Why wrong: Read Replicas are not shown by this field.
The database is an Amazon Aurora cluster.
Why wrong: Engine is mysql, not aurora.
The database is a Multi-AZ deployment with a standby in a different Availability Zone.
MultiAZ true and SecondaryAZ present.
Answer choices
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 Multi-AZ deployment with a standby in a different Availability Zone.
MultiAZ is true and a SecondaryAvailabilityZone is present, indicating a Multi-AZ deployment. Option C is correct. Option A (Single-AZ) is false because MultiAZ is true. Option B (Read Replica) is not indicated; Read Replicas have a different field. Option D (Aurora) is not correct because Engine is mysql.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The database is a Single-AZ deployment.
Why it's wrong here
MultiAZ is true.
The database has a Read Replica in a different Availability Zone.
Why it's wrong here
Read Replicas are not shown by this field.
The database is an Amazon Aurora cluster.
Why it's wrong here
Engine is mysql, not aurora.
The database is a Multi-AZ deployment with a standby in a different Availability Zone.
Why this is correct
MultiAZ true and SecondaryAZ present.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
Read Replicas are not shown by this field.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Identify which DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Deployment and Migration — study guide chapter
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FAQ
Deployment and Migration — This question tests Deployment and Migration — Read the scenario before looking for a memorised answer..
The correct answer is: The database is a Multi-AZ deployment with a standby in a different Availability Zone. — MultiAZ is true and a SecondaryAvailabilityZone is present, indicating a Multi-AZ deployment. Option C is correct. Option A (Single-AZ) is false because MultiAZ is true. Option B (Read Replica) is not indicated; Read Replicas have a different field. Option D (Aurora) is not correct because Engine is mysql.
Identify which DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This DBS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DBS-C01 exam.
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