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Amazon SOA-C03 Exam Syllabus Topics:

Topic	Details
Topic 1	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 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	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 (Q172-Q177):

NEW QUESTION # 172
A media company hosts a public news and video portal on AWS. The portal uses an Amazon DynamoDB table with provisioned capacity to maintain an index of video files that are stored in an Amazon S3 bucket. During a recent event, millions of visitors came to the portal for news. This increase in traffic caused read requests to be throttled in the DynamoDB table. Videos could not be displayed in the portal.
The company's operations team manually increased the provisioned capacity on a temporary basis to meet the demand. The company wants the operations team to receive an alert before the table is throttled in the future. The company has created an Amazon Simple Notification Service (Amazon SNS) topic and has subscribed the operations team's email address to the SNS topic.
What should the company do next to meet these requirements?

A. Turn on auto scaling on the DynamoDB table. Configure an Amazon EventBridge rule to publish notifications to the SNS topic during scaling events.
B. Configure the application to store logs in Amazon CloudWatch Logs. Create an Amazon CloudWatch metric filter to pattern match the THROTTLING_EXCEPTION status code from DynamoD Create a CloudWatch alarm for the metric. Select the SNS topic for notifications.
C. Turn on Amazon CloudWatch Logs for the DynamoDB table. Create an Amazon CloudWatch metric filter to pattern match the THROTTLING_EXCEPTION status code from DynamoDB.
Create a CloudWatch alarm for the metric. Select the SNS topic for notifications.
D. Create an Amazon CloudWatch alarm that uses the ConsumedReadCapacityUnits metric. Set the alarm threshold to a value that is close to the DynamoDB table's provisioned capacity. Configure the alarm to publish notifications to the SNS topic.

Answer: D

NEW QUESTION # 173
A company hosts an application on AWS that uses a 5 TB Amazon RDS for MySQL database.
The company performs frequent micro updates that cannot be interrupted. Sometimes structural changes to the database cause issues for the application. When an issue occurs, the company immediately receives a notification through automated monitoring.
The company wants to undo the problematic database changes as soon as possible. The company wants to transition from RDS for MySQL to an Amazon Aurora MySQL-Compatible Edition cluster.
Which solution will meet these requirements?

A. Create an RDS Proxy in front of the Aurora cluster. If the update fails, restore the DB snapshot and modify the RDS Proxy to use the new DB cluster endpoint.
B. Create a database record in an Amazon Route 53 private zone that points to the cluster endpoint.
Create a DB cluster snapshot immediately before the update begins. If the update fails, restore the DB snapshot and modify DNS accordingly.
C. Activate the backtrack feature in the Aurora cluster during the initial creation or restoration of the Aurora cluster from the RDS for MySQL database. Use backtrack to roll back the database to the point in time right before the update began.
D. Create a DB cluster snapshot immediately before the update begins. If the update fails, restore the DB snapshot and modify the application to use the new DB cluster endpoint.

Answer: C

Explanation:
Aurora MySQL-Compatible Edition supports the backtrack feature, which allows the database cluster to be rewound to an earlier point in time without restoring a full snapshot. For a large 5 TB database with frequent updates, backtracking provides a much faster way to undo problematic structural changes while minimizing interruption compared with snapshot restoration.

NEW QUESTION # 174
A company has a VPC that contains a public subnet and a private subnet. The company deploys an Amazon EC2 instance that uses an Amazon Linux Amazon Machine Image (AMI) and has the AWS Systems Manager Agent (SSM Agent) installed in the private subnet. The EC2 instance is in a security group that allows only outbound traffic.
A CloudOps engineer needs to give a group of privileged administrators the ability to connect to the instance through SSH without exposing the instance to the internet.
Which solution will meet this requirement?

A. Create a Systems Manager endpoint in the private subnet. Update the security group to allow SSH traffic from the private network where the Systems Manager endpoint is connected. Create an IAM group for privileged administrators. Assign the PowerUserAccess managed policy to the IAM group.
B. Create an EC2 Instance Connect endpoint in the public subnet. Update the security group to allow SSH traffic from the private network. Create an IAM group for privileged administrators.
Assign the PowerUserAccess managed policy to the IAM group.
C. Create an EC2 Instance Connect endpoint in the private subnet. Update the security group to allow inbound SSH traffic. Create an IAM group for privileged administrators. Assign the PowerUserAccess managed policy to the IAM group.
D. Create a Systems Manager endpoint in the public subnet. Create an IAM role that has the AmazonSSMManagedInstanceCore permission for the EC2 instance. Create an IAM group for privileged administrators. Assign the AmazonEC2ReadOnlyAccess IAM policy to the IAM group.

Answer: C

Explanation:
EC2 Instance Connect Endpoint (EIC Endpoint) enables SSH to instances in private subnets without public IPs and without needing to traverse the public internet. CloudOps guidance explains that you deploy the endpoint in the same VPC/subnet as the targets, then allow inbound SSH on the instance security group from the endpoint's security group. Access is governed by IAM--administrators must have Instance Connect permissions; while the example uses a broad policy, the key mechanism is EIC in the private subnet plus SG rules scoped to the endpoint.
Systems Manager Session Manager can provide shell access without SSH, but the requirement explicitly states "connect through SSH," making EIC the purpose-built solution. Options B and D misuse Systems Manager for SSH and propose unnecessary SG changes or incorrect endpoint placement; Option C places the endpoint in a public subnet, which is not required for private SSH access. Therefore, creating an EC2 Instance Connect endpoint in the private subnet and updating SGs accordingly meets the requirement while keeping the instance non-internet- exposed.

NEW QUESTION # 175
A CloudOps engineer is creating a simple, public-facing website running on Amazon EC2. The CloudOps engineer created the EC2 instance in an existing public subnet and assigned an Elastic IP address to the instance. Next, the CloudOps engineer created and applied a new security group to the instance to allow incoming HTTP traffic from 0.0.0.0/0. Finally, the CloudOps engineer created a new network ACL and applied it to the subnet to allow incoming HTTP traffic from 0.0.0.0/0. However, the website cannot be reached from the internet.
What is the cause of this issue?

A. The CloudOps engineer did not create an outbound rule in the security group that allows HTTP traffic from port 80.
B. The CloudOps engineer did not create an outbound rule that allows ephemeral port return traffic in the new network ACL.
C. There is an additional network ACL associated with the subnet that includes a rule that denies inbound HTTP traffic from port 80.
D. The Elastic IP address assigned to the EC2 instance has changed.

Answer: B

Explanation:
Network ACLs are stateless, meaning that return traffic for allowed inbound connections must be explicitly permitted by outbound rules. Although the inbound rule allows HTTP (port 80) from
0.0.0.0/0, if the outbound rule does not allow ephemeral ports (typically 1024-65535), return traffic from the web server to clients will be blocked, preventing users from accessing the website.

NEW QUESTION # 176
An ecommerce company uses Amazon ElastiCache (Redis OSS) for caching product queries. The CloudOps engineer observes a large number of cache evictions in Amazon CloudWatch metrics and needs to reduce evictions while retaining popular data in cache.
Which solution meets these requirements with the least operational overhead?

A. Decrease the ElastiCache TTL value.
B. Migrate to a new ElastiCache cluster with larger nodes.
C. Increase the ElastiCache TTL value.
D. Add another node to the ElastiCache cluster.

Answer: B

Explanation:
According to the AWS Cloud Operations and ElastiCache documentation, cache evictions occur when the cache runs out of memory and must remove items to make space for new data.
To reduce evictions and retain frequently accessed items, AWS recommends increasing the total available memory - either by scaling up to larger node types or scaling out by adding shards/nodes. Migrating to a cluster with larger nodes is the simplest and most efficient solution because it immediately expands capacity without architectural changes.
Adjusting TTL (Options B and C) controls expiration timing, not memory allocation. Adding a single node (Option A) may help, but redistributing data requires resharding, introducing more complexity.
Thus, Option D provides the lowest operational overhead and ensures high cache hit rates by increasing total cache memory.

NEW QUESTION # 177
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