Quick Answer
The answer is the DNS endpoint of the DB instance. This output, returned by the AWS CLI command like `aws rds describe-db-instances`, displays the fully qualified domain name (FQDN) that resolves to the underlying compute resource, not a static IP address. Understanding RDS CLI endpoint output is critical for the AWS Certified Database Specialty DBS-C01 exam because it tests your ability to distinguish between connection strings, resource IDs, and reader endpoints. A common trap is confusing this DNS name with an IP address or a resource ID, but the key differentiator is the human-readable hostname format. For the exam, remember that the reader endpoint always contains the suffix `-ro`, while the primary endpoint does not. Memory tip: DNS endpoints are like a phone number for your database—always a name, never a number.
This DBS-C01 practice question tests your understanding of monitoring and troubleshooting. 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 developer runs the AWS CLI command and receives the output shown. What is this output?
The DNS endpoint of the DB instance
RDS provides a DNS endpoint for connections.
The private IP address of the DB instance
Why wrong: It is a DNS name, not an IP.
The reader endpoint of a Multi-AZ cluster
Why wrong: Reader endpoints contain '-ro'.
The resource ID of the DB instance
Why wrong: Resource IDs are like 'db-ABCDEFGHIJKLMNOPQ'.
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 DNS endpoint of the DB instance
Option C is correct. The output is the DNS endpoint of the RDS instance. Option A is wrong because it's not an IP address. Option B is wrong because Resource ID looks different. Option D is wrong because the reader endpoint includes '-ro'.
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 DNS endpoint of the DB instance
Why this is correct
RDS provides a DNS endpoint for connections.
Related concept
Read the scenario before looking for a memorised answer.
The private IP address of the DB instance
Why it's wrong here
It is a DNS name, not an IP.
The reader endpoint of a Multi-AZ cluster
Why it's wrong here
Reader endpoints contain '-ro'.
The resource ID of the DB instance
Why it's wrong here
Resource IDs are like 'db-ABCDEFGHIJKLMNOPQ'.
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.
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
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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.
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FAQ
Monitoring and Troubleshooting — This question tests Monitoring and Troubleshooting — Read the scenario before looking for a memorised answer..
The correct answer is: The DNS endpoint of the DB instance — Option C is correct. The output is the DNS endpoint of the RDS instance. Option A is wrong because it's not an IP address. Option B is wrong because Resource ID looks different. Option D is wrong because the reader endpoint includes '-ro'.
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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