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Free AWS Certified CloudOps Engineer - Associate SOA-C03 Exam Braindumps
AWS Certified CloudOps Engineer - Associate Questions 26–30 (page: 7)

Updated On: 12-Mar-2026
Page 7 of 34
PDF with 165 Questions

A CloudOps engineer needs to track the costs of data transfer between AWS Regions. The CloudOps engineer must implement a solution to send alerts to an email distribution list when transfer costs reach 75% of a specific threshold.

What should the CloudOps engineer do to meet these requirements?

  1. Create an AWS Cost and Usage Report. Analyze the results in Amazon Athena. Configure an alarm to publish a message to an Amazon Simple Notification Service (Amazon SNS) topic when costs reach 75% of the threshold. Subscribe the email distribution list to the topic.
  2. Create an Amazon CloudWatch billing alarm to detect when costs reach 75% of the threshold.
    Configure the alarm to publish a message to an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the email distribution list to the topic.
  3. Use AWS Budgets to create a cost budget for data transfer costs. Set an alert at 75% of the budgeted amount. Configure the budget to send a notification to the email distribution list when costs reach 75% of the threshold.
  4. Set up a VPC flow log. Set up a subscription filter to an AWS Lambda function to analyze data transfer. Configure the Lambda function to send a notification to the email distribution list when costs reach 75% of the threshold.

Answer(s): C

Explanation:

According to the AWS Cloud Operations and Cost Management documentation, AWS Budgets is the recommended service to track and alert on cost thresholds across all AWS accounts and resources. It allows users to define cost, usage, or reservation budgets, and configure notifications to trigger when usage or cost reaches defined percentages of the budgeted value (e.g., 75%, 90%, 100%).

The AWS Budgets system integrates natively with Amazon Simple Notification Service (SNS) to deliver alerts to an email distribution list or SNS topic subscribers. AWS Budgets supports granular cost filters, including specific service categories such as data transfer, regions, or linked accounts, ensuring precise visibility into inter-Region transfer costs.

By contrast, CloudWatch billing alarms (Option B) monitor total account charges only and do not allow detailed service-level filtering, such as data transfer between Regions. Cost and Usage Reports (Option A) are for detailed cost analysis, not real-time alerting, and VPC Flow Logs (Option D) capture traffic data, not billing or cost-based metrics.

Thus, using AWS Budgets with a 75% alert threshold best satisfies the operational and notification requirements.


Reference:

AWS CloudOps and Cost Management Guide ­ Section: AWS Budgets for Cost Monitoring and Alerts



A CloudOps engineer needs to set up alerting and remediation for a web application. The application consists of Amazon EC2 instances that have AWS Systems Manager Agent (SSM Agent) installed. Each EC2 instance runs a custom web server. The EC2 instances run behind a load balancer and write logs locally.

The CloudOps engineer must implement a solution that restarts the web server software automatically if specific web errors are detected in the logs.

Which combination of steps will meet these requirements? (Select THREE.)

  1. Install the Amazon CloudWatch agent on the EC2 instances.
  2. Create an AWS CloudTrail metric filter for the web logs. Configure an alarm for the specific errors.
  3. Create an Amazon CloudWatch metric filter for the web logs. Configure an alarm for the specific errors.
  4. Publish alarm findings to Amazon Simple Email Service (Amazon SES). Invoke an AWS Lambda function to restart the web server software.
  5. Create an Amazon EventBridge rule that responds to the alarm. Configure the rule to invoke an AWS Systems Manager Automation runbook to restart the web server software.
  6. Create an Amazon Simple Notification Service (Amazon SNS) notification that responds to the alarm. Configure the notification to invoke an AWS Systems Manager Automation runbook to restart the web server software.

Answer(s): A,C,E

Explanation:

Per the AWS Cloud Operations, Monitoring, and Automation documentation, the correct workflow for automated operational remediation is:

Amazon CloudWatch Agent is installed on each EC2 instance (Option A) to collect local log data and push it to Amazon CloudWatch Logs.

A CloudWatch Metric Filter (Option C) is then defined to identify specific error strings or patterns within those logs (e.g., "HTTP 5xx" or "Service Unavailable").
When such an event occurs, CloudWatch Alarms are triggered.

Upon alarm activation, Amazon EventBridge rules (Option E) are configured to respond automatically by invoking an AWS Systems Manager Automation runbook, which executes an action to restart the web server process on the affected instance via SSM Agent.

This approach aligns directly with AWS's recommended CloudOps remediation pattern, known as event-driven automation, which ensures minimal downtime and eliminates manual intervention.

Options involving CloudTrail (B) or SES notifications (D) are incorrect because they are unrelated to log-based application monitoring and automated remediation workflows.


Reference:

AWS Cloud Operations & Systems Manager Guide ­ Section: Automated Remediation using CloudWatch, EventBridge, and Systems Manager Automation



A CloudOps engineer is configuring an Amazon CloudFront distribution to use an SSL/TLS certificate. The CloudOps engineer must ensure automatic certificate renewal.

Which combination of steps will meet this requirement? (Select TWO.)

  1. Use a certificate issued by AWS Certificate Manager (ACM).
  2. Use a certificate issued by a third-party certificate authority (CA).
  3. Configure CloudFront to automatically renew the certificate when the certificate expires.
  4. Configure email validation for the certificate.
  5. Configure DNS validation for the certificate.

Answer(s): A,E

Explanation:

The AWS Cloud Operations and Security documentation specifies that for Amazon CloudFront,

automatic certificate renewal is only supported for certificates issued by AWS Certificate Manager (ACM).
When a certificate is managed by ACM and validated through DNS validation, ACM automatically renews the certificate before expiration without requiring manual intervention.

Option A ensures that the certificate is issued and managed by ACM, enabling full integration with CloudFront. Option E (DNS validation) is essential for automation; AWS performs revalidation automatically as long as the DNS validation record remains in place.

By contrast, email validation (Option D) requires manual user confirmation upon renewal, which prevents automatic renewals. Certificates issued by third-party certificate authorities (Option B) are manually managed and must be reimported into ACM after renewal. CloudFront does not have a direct feature (Option C) to renew certificates; it relies on ACM's lifecycle management.

Thus, combining ACM-issued certificates (A) with DNS validation (E) ensures continuous, automated renewal with no downtime or human action required.


Reference:

AWS Cloud Operations and Security Best Practices ­ Section: Using AWS Certificate Manager with CloudFront for Automatic Certificate Renewal



A company has an on-premises DNS solution and wants to resolve DNS records in an Amazon Route 53 private hosted zone for example.com. The company has set up an AWS Direct Connect connection for network connectivity between the on-premises network and the VPC. A CloudOps engineer must ensure that an on-premises server can query records in the example.com domain.

What should the CloudOps engineer do to meet these requirements?

  1. Create a Route 53 Resolver inbound endpoint. Attach a security group to the endpoint to allow inbound traffic on TCP/UDP port 53 from the on-premises DNS servers.
  2. Create a Route 53 Resolver inbound endpoint. Attach a security group to the endpoint to allow outbound traffic on TCP/UDP port 53 to the on-premises DNS servers.
  3. Create a Route 53 Resolver outbound endpoint. Attach a security group to the endpoint to allow inbound traffic on TCP/UDP port 53 from the on-premises DNS servers.
  4. Create a Route 53 Resolver outbound endpoint. Attach a security group to the endpoint to allow outbound traffic on TCP/UDP port 53 to the on-premises DNS servers.

Answer(s): A

Explanation:

According to AWS Cloud Operations and Networking documentation, Route 53 Resolver inbound endpoints allow DNS queries to originate from on-premises DNS servers and resolve private hosted zone records in AWS. The inbound endpoint provides DNS resolver IP addresses within the VPC, which the on-premises DNS servers can forward queries to over AWS Direct Connect or VPN connections.

The inbound endpoint must be associated with a security group that permits inbound traffic on TCP and UDP port 53 from the on-premises DNS server IP addresses. This ensures that DNS requests from the on-premises environment reach the VPC Resolver for resolution of private domains like example.com.

By contrast, outbound endpoints are used for the opposite direction--resolving external (on- premises or internet) DNS names from within AWS VPCs. Therefore, only an inbound endpoint correctly satisfies the direction of resolution in this scenario.


Reference:

AWS Cloud Operations & Route 53 Resolver Guide ­ Section: Inbound and Outbound Endpoints for Hybrid DNS Resolution



A medical research company uses an Amazon Bedrock powered AI assistant with agents and knowledge bases to provide physicians quick access to medical study protocols. The company needs to generate audit reports that contain user identities, usage data for Bedrock agents, access data for knowledge bases, and interaction parameters.

Which solution will meet these requirements?

  1. Use AWS CloudTrail to log API events from generative AI workloads. Store the events in CloudTrail Lake. Use SQL-like queries to generate reports.
  2. Use Amazon CloudWatch to capture generative AI application logs. Stream the logs to Amazon OpenSearch Service. Use an OpenSearch dashboard visualization to generate reports.
  3. Use Amazon CloudWatch to log API events from generative AI workloads. Send the events to an Amazon S3 bucket. Use Amazon Athena queries to generate reports.
  4. Use AWS CloudTrail to capture generative AI application logs. Stream the logs to Amazon Managed Service for Apache Flink. Use SQL queries to generate reports.

Answer(s): A

Explanation:

As per AWS Cloud Operations, Bedrock, and Governance documentation, AWS CloudTrail is the authoritative service for capturing API activity and audit trails across AWS accounts. For Amazon Bedrock, CloudTrail records all user-initiated API calls, including interactions with agents, knowledge bases, and generative AI model parameters.

Using CloudTrail Lake, organizations can store, query, and analyze CloudTrail events directly without needing to export data. CloudTrail Lake supports SQL-like queries for generating audit and compliance reports, enabling the company to retrieve information such as user identity, API usage, timestamp, model or agent ID, and invocation parameters.

In contrast, CloudWatch focuses on operational metrics and log streaming, not API-level identity data. OpenSearch or Flink would add unnecessary complexity and cost for this use case.

Thus, the AWS-recommended CloudOps best practice is to leverage CloudTrail with CloudTrail Lake to maintain auditable, queryable API activity for Bedrock workloads, fulfilling governance and compliance requirements.


Reference:

AWS Cloud Operations & Governance Guide ­ Section: Auditing and Governance for Generative AI Workloads Using AWS CloudTrail and CloudTrail Lake



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