A developer wants to send a notification to a Slack channel when a critical error occurs in the application. The application is running on AWS Lambda. What is the most efficient way to implement this?

Use Amazon SES to send an email to the Slack channel's email address.

Create a CloudWatch alarm on the error metric and add a Slack notification action.

Publish an SNS message from the Lambda function to a topic that has a Slack subscription.

Use AWS X-Ray to detect errors and send notifications.

A team is migrating a monolithic application to microservices. They want to implement structured logging to help with troubleshooting across services. The operations team needs to correlate logs from different services for a single user request. What should the developer implement?

Log all events in a single centralized log group.

Use CloudWatch Logs Insights to query logs from all services.

Use AWS X-Ray to trace requests and include trace IDs in logs.

Add a correlation ID to each log entry and include it in all services for the same request.

AWSCertified Developer - Associate

Domain 4Objective 2

Task 2: Instrument Code for Observability DVA-C02 Practice Questions (Page 3)

Part of the Content Domain 4: Troubleshooting and Optimization domain, which accounts for 18% of the DVA-C02 exam. AWS does not publish an official question count, but from its 130-minute exam (~50–85 total, ~9–15 in this domain), expect 3–5 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

8concepts

18%of the exam

Questions 11–15

11application · medium
A developer wants to send a notification to a Slack channel when a critical error occurs in the application. The application is running on AWS Lambda. What is the most efficient way to implement this?
Select an answer first
12foundation · easy
An application logs an error that occurs during a critical business transaction. The developer wants to ensure this error is easily searchable and stands out from routine informational logs. Which log level should be used for this error?
Select an answer first
13expert · hard
A team is migrating a monolithic application to microservices. They want to implement structured logging to help with troubleshooting across services. The operations team needs to correlate logs from different services for a single user request. What should the developer implement?
Select an answer first
14foundation · easy
A developer is using an open-source standard to instrument their application for tracing and wants to send the data to AWS X-Ray. Which AWS tooling supports this approach?
Select an answer first
15foundation · easy
In Amazon ECS, a developer wants to configure a check that determines whether a container is ready to start receiving traffic. What is this check called?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to DVA-C02

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by AWS. “DVA-C02” is a trademark of its owner, used for identification only.

Task 2: Instrument Code for Observability DVA-C02 Practice Questions (Page 3)

Questions 11–15

A developer wants to send a notification to a Slack channel when a critical error occurs in the application. The application is running on AWS Lambda. What is the most efficient way to implement this?

An application logs an error that occurs during a critical business transaction. The developer wants to ensure this error is easily searchable and stands out from routine informational logs. Which log level should be used for this error?

A team is migrating a monolithic application to microservices. They want to implement structured logging to help with troubleshooting across services. The operations team needs to correlate logs from different services for a single user request. What should the developer implement?

A developer is using an open-source standard to instrument their application for tracing and wants to send the data to AWS X-Ray. Which AWS tooling supports this approach?

In Amazon ECS, a developer wants to configure a check that determines whether a container is ready to start receiving traffic. What is this check called?

Keep studying — Content Domain 4: Troubleshooting and Optimization