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Amazon SOA-C03 Exam Syllabus Topics:

Topic	Details
Topic 1	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 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	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 4	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 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 (Q252-Q257):

NEW QUESTION # 252
A company stores critical files in an Amazon S3 bucket in the us-east-1 AWS Region. To comply with disaster recovery requirements, all new objects in the bucket must automatically replicate to a bucket in the us-west-2 Region. Which solution will meet this requirement with the LEAST operational overhead?

A. Enable Cross-Region Replication (CRR) on the source bucket. Specify the destination bucket in the us-west-2 Region. Enable versioning on the source bucket.
B. Enable S3 Lifecycle policies to transition objects to a different storage class in the us-west-2 Region.
C. Enable Cross-Origin Resource Sharing (CORS) on both the us-east-1 bucket and the us-west-2 bucket.
D. Create an AWS Lambda function that copies the object to the destination bucket. Configure an Amazon EventBridge rule to run the Lambda function for each object that is created.

Answer: A

Explanation:
Amazon S3 Cross-Region Replication automatically replicates new objects from a source bucket to a destination bucket in another AWS Region. Versioning must be enabled on the source and destination buckets for replication to work, making CRR the lowest-overhead managed solution for this disaster recovery requirement.

NEW QUESTION # 253
A company deploys non-production Amazon EC2 instances in a VPC that has an internet gateway attached. The VPC has a single public subnet and a single private subnet. The EC2 instances in the private subnet cannot communicate outbound to the internet. Which action will give the EC2 instances in the private subnet the ability to communicate outbound to the internet?

A. Create a NAT gateway in the public subnet. Create an entry in the route table that is associated with the private subnet. Specify 0.0.0.0/0 as the destination. Specify the NAT gateway as the target.
B. Create a second internet gateway. Associate the second internet gateway with the private subnet.
C. Create a NAT gateway in the private subnet. Route traffic from the NAT gateway to the internet gateway.
D. Create an entry in the route table that is associated with the private subnet. Specify 0.0.0.0/0 as the destination. Specify the internet gateway as the target.

Answer: A

Explanation:
Instances in a private subnet do not have direct internet-routable access, even if the VPC has an internet gateway. To allow outbound internet access while preventing inbound internet-initiated access, deploy a NAT gateway in a public subnet and route the private subnet's default route,
0.0.0.0/0, to that NAT gateway. The NAT gateway then uses the public subnet's route to the internet gateway. Option A is wrong because NAT gateways must be placed in public subnets to reach the internet. Option C would require the instances to have public IP addresses and would make the subnet effectively public, which violates the private subnet model. Option D is invalid because a VPC can have only one internet gateway attached, and internet gateways are attached to VPCs, not individual subnets.

NEW QUESTION # 254
An errant process is known to use an entire processor and run at 100%. A CloudOps engineer wants to automate restarting an Amazon EC2 instance when the problem occurs for more than 2 minutes.
How can this be accomplished?

A. Create an AWS Lambda function to restart the EC2 instance, invoked on a scheduled basis every
2 minutes.
B. Create an Amazon CloudWatch alarm for the EC2 instance with basic monitoring. Add an action to restart the instance.
C. Create an AWS Lambda function to restart the EC2 instance, invoked by EC2 health checks.
D. Create an Amazon CloudWatch alarm for the EC2 instance with detailed monitoring. Add an action to restart the instance.

Answer: D

Explanation:
With detailed monitoring enabled, CloudWatch collects EC2 metrics (such as CPUUtilization) at
1-minute intervals, allowing accurate detection of sustained 100% CPU usage. You can then configure a CloudWatch alarm that triggers when CPU utilization remains above a threshold (e.g.,
99%) for more than 2 consecutive minutes and set the alarm action to automatically restart the EC2 instance. This provides a fully automated, low-maintenance solution.

NEW QUESTION # 255
A company has an application that uses an Amazon EFS file system. A recent incident that involved an application logic error corrupted several files. The company wants to improve its ability to back up and recover the EFS file system. The company must be able to recover individual files rapidly. Which solution meets these requirements MOST cost-effectively?

A. Create a second EFS file system in another AWS Region. Configure AWS DataSync to copy the data to the backup file system. Recover files by copying them from the backup EFS file system.
B. Enable AWS Backup in Amazon EFS to back up the file system to a backup vault. Use a partial restore job to retrieve individual files.
C. Configure Amazon Data Lifecycle Manager (Amazon DLM) to archive a copy of the data to an Amazon S3 Glacier vault. Use S3 Glacier retrieval requests to retrieve individual files.
D. Enable AWS Backup in Amazon EFS to back up the file system to an Amazon S3 Glacier vault.
Use S3 Glacier retrieval requests to retrieve individual files.

Answer: B

Explanation:
AWS Backup is the managed service for backing up and restoring Amazon EFS file systems. It supports backup vaults and restore workflows without requiring a second live EFS file system.
This is more cost-effective than maintaining a duplicate EFS file system in another Region. AWS documentation explains that AWS Backup performs incremental backups of EFS file systems, reducing duplicate backup storage and improving cost efficiency. For file-level recovery, a partial restore job can restore selected files or directories rather than restoring the entire file system.
Amazon DLM is primarily used for EBS snapshots, not EFS file-level backup management. S3 Glacier retrieval is not the best fit for rapid individual file recovery because retrieval latency and restore workflow are unsuitable for quick operational recovery. Therefore, AWS Backup with partial restore is the right answer.

NEW QUESTION # 256
A company has many accounts in an organization in AWS Organizations. The company must automate resource provisioning from the organization's management account to the member accounts. Which solution will meet this requirement?

A. Create an AWS SAM template. Deploy the template to all member accounts.
B. Create an AWS CloudFormation nested stack. Deploy the nested stack to all member accounts.
C. Create an AWS CloudFormation change set. Deploy the change set to all member accounts.
D. Create an AWS CloudFormation stack set. Deploy the stack set to all member accounts.

Answer: D

Explanation:
AWS CloudFormation StackSets automate stack deployment across multiple AWS accounts and Regions from a central administrator account. This is the appropriate CloudFormation feature for provisioning resources from an AWS Organizations management account into member accounts.

NEW QUESTION # 257
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