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Amazon SOA-C03 Exam Syllabus Topics:

Topic	Details
Topic 1	Networking and Content Delivery: This section measures skills of Cloud Network Engineers and focuses on VPC configuration, subnets, routing, network ACLs, and gateways. It includes optimizing network cost and performance, configuring DNS with Route 53, using CloudFront and Global Accelerator for content delivery, and troubleshooting network and hybrid connectivity using logs and monitoring tools.
Topic 2	Reliability and Business Continuity: This section measures the skills of System Administrators and focuses on maintaining scalability, elasticity, and fault tolerance. It includes configuring load balancing, auto scaling, Multi-AZ deployments, implementing backup and restore strategies with AWS Backup and versioning, and ensuring disaster recovery to meet RTO and RPO goals.
Topic 3	Monitoring, Logging, Analysis, Remediation, and Performance Optimization: This section of the exam measures skills of CloudOps Engineers and covers implementing AWS monitoring tools such as CloudWatch, CloudTrail, and Prometheus. It evaluates configuring alarms, dashboards, and notifications, analyzing performance metrics, troubleshooting issues using EventBridge and Systems Manager, and applying strategies to optimize compute, storage, and database performance.
Topic 4	Security and Compliance: This section measures skills of Security Engineers and includes implementing IAM policies, roles, MFA, and access controls. It focuses on troubleshooting access issues, enforcing compliance, securing data at rest and in transit using AWS KMS and ACM, protecting secrets, and applying findings from Security Hub, GuardDuty, and Inspector.
Topic 5	Deployment, Provisioning, and Automation: This section measures the skills of Cloud Engineers and covers provisioning and maintaining cloud resources using AWS CloudFormation, CDK, and third-party tools. It evaluates automation of deployments, remediation of resource issues, and managing infrastructure using Systems Manager and event-driven processes like Lambda or S3 notifications.

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Amazon AWS Certified CloudOps Engineer - Associate Sample Questions (Q66-Q71):

NEW QUESTION # 66
A company wants to use AWS Systems Manager to manage a large fleet of Amazon EC2 instances. The company hosts the instances in private subnets. The company follows the principle of least privilege to assign access permissions. All private subnets have internet connectivity through a NAT gateway.
A CloudOps engineer installs the latest version of the Systems Manager Agent (SSM Agent).
However, the EC2 instances do not appear in Systems Manager Fleet Manager. The CloudOps engineer must resolve this issue.
Which solution will meet this requirement?

A. Attach the AmazonSSMManagedInstanceCore AWS managed policy to the EC2 instance profile that is associated with the instances.
B. Replace the NAT gateway with a NAT instance that is deployed in the public subnet. Update the private subnet's route table to use the NAT instance.
C. Create a VPC endpoint for Systems Manager. Remove routes to the internet through the NAT gateway from the private subnet's route table.
D. Attach a custom policy that allows all actions to ssm* to the EC2 instance profile that is associated with the instances.

Answer: A

Explanation:
For EC2 instances to register and appear in AWS Systems Manager (Fleet Manager, Run Command, Patch Manager, etc.), the instance's IAM instance profile must have the correct permissions. The recommended least-privilege policy is AmazonSSMManagedInstanceCore, which grants SSM Agent the necessary access to Systems Manager, AWS Identity and Access Management, and (optionally) CloudWatch Logs. Without this policy, the agent cannot register the instance, even if network connectivity through a NAT gateway is present.

NEW QUESTION # 67
A company plans to run a public web application on Amazon EC2 instances behind an Elastic Load Balancing (ELB) load balancer. The company's security team wants to protect the website by using AWS Certificate Manager (ACM) certificates. The load balancer must automatically redirect any HTTP requests to HTTPS.
Which solution will meet these requirements?

A. Create an Application Load Balancer that has two TCP listeners on ports 80 and 443. Attach an SSL
/TLS certificate to port 443.
B. Create a Network Load Balancer with TCP listeners on ports 80 and 443. Attach an SSL/TLS certificate to port 443.
C. Create an Application Load Balancer that has one HTTPS listener on port 80. Attach an SSL/TLS certificate to port 80.
D. Create an Application Load Balancer that has one HTTP listener on port 80 and one HTTPS listener on port 443. Attach an SSL/TLS certificate to port 443. Create a rule to redirect requests from port 80 to port 443.

Answer: D

Explanation:
Comprehensive Explanation (250-350 words):
An Application Load Balancer (ALB) operates at Layer 7 (HTTP/HTTPS) and supports advanced routing features, including HTTP-to-HTTPS redirection. To meet the requirement of protecting traffic with ACM certificates and automatically redirecting HTTP requests, the ALB must be configured with two listeners.
The correct design is to create an HTTP listener on port 80 and an HTTPS listener on port 443. The SSL/TLS certificate from AWS Certificate Manager is attached to the HTTPS listener. A listener rule on port 80 redirects incoming HTTP requests to HTTPS on port 443, ensuring all client connections are encrypted.
Option A is invalid because HTTPS cannot operate on port 80. Option C uses TCP listeners, which do not support HTTP-level redirects. Option D uses a Network Load Balancer, which operates at Layer 4 and does not support HTTP redirects.
Therefore, Option B is the only solution that satisfies all requirements using AWS-native features with minimal complexity.

NEW QUESTION # 68
An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The application takes up to 2 minutes to populate a local cache after the application is started. The application reports as healthy in the target group health check a few seconds after starting.
A CloudOps engineer observes that after some of the instances are rebooted, the instances receive an equal share of the traffic immediately after each instance reports as healthy. The application needs to receive a gradually increasing share of the traffic while the application cache is populated.
Which solution will meet this requirement?

A. Configure an Amazon CloudWatch alarm to monitor the health check status. Configure the action of the alarm to restart an EC2 instance if a health check fails. Change the loadbalancing.algorithm.type target group attribute to be weighted_random.
B. Change the HealthCheckTimeoutSeconds paramotor in the target group to 120 seconds. Before rebooting the instances, deregister the instances from the target group. After rebooting the instances, register the instances with the target group.
C. Create an Amazon EC2 Auto Scaling group. Attach the existing EC2 instances to the Auto Scaling group. Configure an EC2 Auto Scaling lifecycle hook to move starting instances to the Pending Wait state. Update the application to complete the lifecycle hook when the local cache has been populated.
D. Change the slow_start.duration_seconds target group attribute to 120 seconds. Before rebooting the instances, deregister the instances from the target group. After rebooting the instances, register the instances with the target group.

Answer: D

Explanation:
The slow start feature of an ALB target group (slow_start.duration_seconds) is specifically designed to let new or newly healthy targets ramp up gradually, giving them a smaller, increasing share of traffic over a defined period. Setting it to 120 seconds allows each instance to warm its local cache during that time instead of receiving a full share of requests immediately, which matches the 2-minute cache warm-up requirement.

NEW QUESTION # 69
A company runs a web application on Amazon EC2 instances behind an Application Load Balancer (ALB).
The company needs an AWS Lambda function to perform a custom recovery procedure on the application server when the application returns an HTTP 500 status code.
A CloudOps engineer needs to design a solution that detects HTTP 500 status codes and runs the Lambda function reliably when errors are detected.
Which solution will meet these requirements?

A. Create an Amazon EventBridge rule for all ALB request events that invokes the Lambda function.Configure the Lambda function to filter for HTTP 500 status codes internally.
B. Configure an Amazon CloudWatch alarm on the HTTPCode_Target_5XX_Count ALB target group metric. Set the alarm action to run the Lambda function.
C. Deploy a new Lambda function that continuously scans the ALB access logs in Amazon S3 to detect HTTP 500 status codes and then invokes the existing Lambda function.
D. Enable AWS CloudTrail on the application instances. Configure Amazon CloudWatch Logs metric filters to detect HTTP 500 status codes and run the Lambda function.

Answer: B

Explanation:
The ALB target group metric HTTPCode_Target_5XX_Count records HTTP 5XX responses generated by targets behind the load balancer. A CloudWatch alarm can monitor this metric and enter the ALARM state when the error count crosses the defined threshold. CloudWatch alarms can directly invoke a Lambda function as an alarm action, which makes this the simplest reliable automation path for custom recovery.
AWS documentation states that invoking a Lambda function is an alarm action and is used to automate custom actions on alarm state changes. Option B uses log polling, which adds latency and operational overhead. CloudTrail does not capture application HTTP 500 responses from EC2 instances. EventBridge does not receive every ALB request as an event. Therefore, CloudWatch alarm plus Lambda action is correct.

NEW QUESTION # 70
A company uses AWS Organizations to manage multiple AWS accounts. A CloudOps engineer must identify all IPv4 ports open to 0.0.0.0/0 across the organization's accounts.
Which solution will meet this requirement with the LEAST operational effort?

A. Create an AWS Lambda function to gather security group rules from all accounts. Aggregate the findings in an Amazon S3 bucket.
B. Review AWS Trusted Advisor findings in an organizational view for the Security Groups - Specific Ports Unrestricted check.
C. Enable Amazon Inspector in each account. Run an automated workload discovery job.
D. Use the AWS CLI to print all security group rules for review.

Answer: B

Explanation:
According to AWS Cloud Operations and Governance documentation, AWS Trusted Advisor provides automated checks for security group rules across all accounts, including identifying ports open to 0.0.0.0/0.
When viewed in organizational mode, Trusted Advisor integrates with AWS Organizations, allowing administrators to access organization-wide security findings from a central management account. This approach requires no custom code, additional infrastructure, or manual inspection, providing immediate visibility and the lowest operational overhead.
AWS CLI scripts (Option A) or Lambda automation (Option C) introduce additional maintenance, and Amazon Inspector (Option D) is focused on instance-level vulnerabilities, not network access rules.
Therefore, Option B is the AWS-recommended CloudOps best practice for centralized and low-effort open-port auditing.

NEW QUESTION # 71
......

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