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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	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.
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	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.

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Amazon AWS Certified CloudOps Engineer - Associate Sample Questions (Q294-Q299):

NEW QUESTION # 294
A company uses Amazon ElastiCache (Redis OSS) to cache application data. A CloudOps engineer must implement a solution to increase the resilience of the cache. The solution also must minimize the recovery time objective (RTO).
Which solution will meet these requirements?

A. Enable automatic backups. Restore the backups when necessary.
B. Create an Amazon EventBridge rule to initiate a backup every hour. Restore the backup when necessary.
C. Replace ElastiCache (Redis OSS) with ElastiCache (Memcached).
D. Create a read replica in a second Availability Zone. Enable Multi-AZ for the ElastiCache (Redis OSS) replication group.

Answer: D

Explanation:
For high availability and fast failover, ElastiCache for Redis supports replication groups with Multi- AZ and automatic failover. CloudOps guidance states that a primary node can be paired with one or more replicas across multiple Availability Zones; if the primary fails, Redis automatically promotes a replica to primary in seconds, thereby minimizing RTO. This architecture maintains in- memory data continuity without waiting for backup restore operations. Backups (Options B and D) provide durability but require restore and re-warm procedures that increase RTO and may impact application latency. Switching engines (Option A) to Memcached does not provide Redis replication/failover semantics and would not inherently improve resilience for this use case.
Therefore, creating a read replica in a different AZ and enabling Multi-AZ with automatic failover is the prescribed CloudOps pattern to increase resilience and achieve the lowest practical RTO for Redis caches.

NEW QUESTION # 295
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 private subnet. Route traffic from the NAT gateway to the internet gateway.
B. 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.
C. 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.
D. Create a second internet gateway. Associate the second internet gateway with the private subnet.

Answer: C

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 # 296
An Amazon EC2 instance is running an application that uses Amazon Simple Queue Service (Amazon SQS) queues. A CloudOps engineer must ensure that the application can read, write, and delete messages from the SQS queues.
Which solution will meet these requirements in the MOST secure manner?

A. Create an IAM user with permissions and embed credentials in the application configuration.
B. Create and associate an IAM role for EC2. Attach a policy that allows sqs:* permissions.
C. Create an IAM user with permissions and export credentials as environment variables.
D. Create and associate an IAM role for EC2. Attach a policy that allows SendMessage, ReceiveMessage, and DeleteMessage permissions.

Answer: D

Explanation:
The most secure way for an EC2 instance to access AWS services is by using an IAM role attached to the instance. IAM roles eliminate the need for long-term credentials, which reduces the risk of credential leakage and simplifies credential rotation.
Following the principle of least privilege, the IAM policy attached to the role should grant only the permissions required: sqs:SendMessage, sqs:ReceiveMessage, and sqs:DeleteMessage. Granting broader permissions such as sqs:* violates least privilege and increases security risk.
Options A and B rely on IAM users and static credentials, which are not recommended for applications running on EC2. Option C grants excessive permissions.
Therefore, attaching an EC2 IAM role with only the required SQS permissions is the most secure solution.

NEW QUESTION # 297
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. 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.
C. 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.
D. 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.

Answer: B

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 # 298
A company uses a large number of Linux-based Amazon EC2 instances to run business operations. The company uses AWS Systems Manager to manage the EC2 instances. The company wants to ensure that the Systems Manager Agent (SSM Agent) is always up to date with the latest version. Which solution will meet this requirement in the MOST operationally efficient way?

A. Subscribe to SSM Agent notifications on Github. Configure the subscription events to invoke an Amazon SNS topic. Configure the SNS topic to run a custom AWS Lambda function to update the SSM Agent by using the Systems Manager Run Command API.
B. Enable the Auto update SSM Agent setting in Systems Manager Patch Manager.
C. Enable the Auto update SSM Agent setting in Systems Manager Fleet Manager.
D. Subscribe to SSM Agent notifications on Github. Configure the subscription events to invoke an Amazon SNS topic. Configure the topic to run a custom AWS Lambda function to update the SSM Agent by using a Systems Manager Automation document.

Answer: C

Explanation:
Systems Manager Fleet Manager provides an Auto update SSM Agent setting that automatically keeps SSM Agent current across managed EC2 instances. This uses built-in Systems Manager functionality and avoids custom GitHub, SNS, Lambda, or Run Command automation.

NEW QUESTION # 299
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