← DBS-C01·Amazon Web Services

Question 1,554 of 1,730

Management and Operations →hardMultiple SelectObjective-mapped

Quick Answer

The answer is to create a CloudWatch alarm on the 'DatabaseConnections' metric for the RDS instance and set the threshold to 80% of max_connections with a 1-minute period. This works because the 'DatabaseConnections' metric directly reports the current number of active connections to the RDS instance, and by comparing it against the max_connections parameter value from the DB parameter group, you can accurately trigger an alarm when utilization exceeds 80%. On the AWS Certified Database Specialty DBS-C01 exam, this question tests your ability to distinguish between CloudWatch metrics, Enhanced Monitoring (which provides OS-level metrics like CPU and memory, not connection counts), and Performance Insights (which focuses on database load and waits). A common trap is confusing Enhanced Monitoring or Performance Insights with the simple connection count metric; remember that connection monitoring is a basic CloudWatch metric, not an advanced feature. Memory tip: "Connections are CloudWatch's job, not Enhanced or Insights."

DBS-C01 Management and Operations Practice Question

This DBS-C01 practice question tests your understanding of management and operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.

A company runs a production Amazon RDS for PostgreSQL instance with Multi-AZ deployment. The DB instance has a large number of connections from application servers. The operations team wants to monitor the number of database connections and receive an alert when it exceeds 80% of the maximum connections. Which combination of steps should be taken to set up this monitoring? (Choose two.)

Question 1hardmulti select

Read the full NAT/PAT explanation →

A
Set the alarm threshold to 80 and the evaluation period to 5 minutes
Why wrong: The threshold should be based on the actual max_connections, not a fixed number.
B
Enable Enhanced Monitoring and create a CloudWatch alarm on the 'database_connections' metric
Why wrong: Enhanced Monitoring provides OS-level metrics, not DB connection count.
C
Set the alarm threshold to (0.8 * max_connections) and the evaluation period to 1 minute
This ensures the alarm triggers when connections exceed 80% of the maximum.
D
Create a CloudWatch alarm on the 'DatabaseConnections' metric for the RDS instance
DatabaseConnections is a standard RDS CloudWatch metric.
E
Enable Performance Insights and create a CloudWatch alarm using the 'DBLoad' metric
Why wrong: DBLoad is a Performance Insights metric, not a connection count.

Full breakdown with real-world context →

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

✓

Set the alarm threshold to (0.8 * max_connections) and the evaluation period to 1 minute

Correct answers are B and D. B: Create a CloudWatch alarm using the 'DatabaseConnections' metric. D: Set the alarm threshold to 80% of max_connections and the period to 1 minute for timely alerts. A is wrong because RDS Performance Insights does not provide connection count metrics via CloudWatch. C is wrong because Enhanced Monitoring provides OS metrics, not DB connection counts. E is wrong because the max_connections parameter should be checked from the DB parameter group, not the alarm.

Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Set the alarm threshold to 80 and the evaluation period to 5 minutes
Why it's wrong here
The threshold should be based on the actual max_connections, not a fixed number.
✗
Enable Enhanced Monitoring and create a CloudWatch alarm on the 'database_connections' metric
Why it's wrong here
Enhanced Monitoring provides OS-level metrics, not DB connection count.
✓
Set the alarm threshold to (0.8 * max_connections) and the evaluation period to 1 minute
Why this is correct
This ensures the alarm triggers when connections exceed 80% of the maximum.
Related concept
Static NAT maps one inside address to one outside address.
✓
Create a CloudWatch alarm on the 'DatabaseConnections' metric for the RDS instance
Why this is correct
DatabaseConnections is a standard RDS CloudWatch metric.
Related concept
Static NAT maps one inside address to one outside address.
✗
Enable Performance Insights and create a CloudWatch alarm using the 'DBLoad' metric
Why it's wrong here
DBLoad is a Performance Insights metric, not a connection count.

Common exam traps

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Detailed technical explanation

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

Identify inside and outside interfaces first.
Check whether the scenario needs static NAT, dynamic NAT or PAT.
Do not confuse NAT matching ACLs with normal packet-filtering intent.

Key takeaway

NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Real-world example

How this comes up in practice

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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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

Got this wrong? Here's your next step.

Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DBS-C01 NAT questions on configuration and troubleshooting.

Related DBS-C01 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Workload-Specific Database Design practice questions

Practise DBS-C01 questions linked to Workload-Specific Database Design.

Deployment and Migration practice questions

Practise DBS-C01 questions linked to Deployment and Migration.

Management and Operations practice questions

Practise DBS-C01 questions linked to Management and Operations.

Monitoring and Troubleshooting practice questions

Practise DBS-C01 questions linked to Monitoring and Troubleshooting.

Database Security practice questions

Practise DBS-C01 questions linked to Database Security.

DBS-C01 fundamentals practice questions

Practise DBS-C01 questions linked to DBS-C01 fundamentals.

DBS-C01 scenario practice questions

Practise DBS-C01 questions linked to DBS-C01 scenario.

DBS-C01 troubleshooting practice questions

Practise DBS-C01 questions linked to DBS-C01 troubleshooting.

Practice this exam

Start a free DBS-C01 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

DBS-C01 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this DBS-C01 question test?

Management and Operations — This question tests Management and Operations — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: Set the alarm threshold to (0.8 * max_connections) and the evaluation period to 1 minute — Correct answers are B and D. B: Create a CloudWatch alarm using the 'DatabaseConnections' metric. D: Set the alarm threshold to 80% of max_connections and the period to 1 minute for timely alerts. A is wrong because RDS Performance Insights does not provide connection count metrics via CloudWatch. C is wrong because Enhanced Monitoring provides OS metrics, not DB connection counts. E is wrong because the max_connections parameter should be checked from the DB parameter group, not the alarm.

What should I do if I get this DBS-C01 question wrong?

What is the key concept behind this question?

Static NAT maps one inside address to one outside address.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

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.