SOA-C03 Fragen Antworten, SOA-C03 Testing Engine

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Amazon SOA-C03 Prüfungsplan:

Thema	Einzelheiten
Thema 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.
Thema 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.
Thema 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.
Thema 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.
Thema 5	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.

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Amazon AWS Certified CloudOps Engineer - Associate SOA-C03 Prüfungsfragen mit Lösungen (Q39-Q44):

39. Frage
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.)

A. Configure DNS validation for the certificate.
B. Use a certificate issued by a third-party certificate authority (CA).
C. Use a certificate issued by AWS Certificate Manager (ACM).
D. Configure email validation for the certificate.
E. Configure CloudFront to automatically renew the certificate when the certificate expires.

Antwort: A,C

Begründung:
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.

40. Frage
A company hosts a production MySQL database on an Amazon Aurora single-node DB cluster.
The database is queried heavily for reporting purposes. The DB cluster is experiencing periods of performance degradation because of high CPU utilization and maximum connections errors. A CloudOps engineer needs to improve the stability of the database.
Which solution will meet these requirements?

A. Create a multi-node Amazon ElastiCache cluster. Ensure that all reporting requests use the ElastiCache cluster. Use the database if the data is not in the cache.
B. Create an Aurora Replica node. Create an Auto Scaling policy to scale replicas based on CPU utilization. Ensure that all reporting requests use the read-only connection string.
C. Create a second Aurora MySQL single-node DB cluster in a second Availability Zone. Ensure that all reporting requests use the connection string for this additional node.
D. Create an AWS Lambda function that caches reporting requests. Ensure that all reporting requests call the Lambda function.

Antwort: B

Begründung:
Amazon Aurora supports up to 15 Aurora Replicas that share the same storage volume and provide read scaling and improved availability. Official guidance states that replicas "offload read traffic from the writer" and that you should direct read-only workloads to the reader endpoint, reducing CPU pressure and connection counts on the primary. Aurora also supports Replica Auto Scaling through Application Auto Scaling policies using metrics such as CPU utilization or connections to add or remove replicas automatically. This design addresses both high CPU and maximum connections by moving reporting traffic to read replicas while keeping a single write primary for OLTP. Option B creates a separate cluster with independent storage, increasing operational overhead and data synchronization complexity. Options C and D introduce application-layer caching changes that may not guarantee data freshness or relieve the write node directly. Therefore, adding read replicas and routing reporting to the reader endpoint, with auto scaling based on load, is the least intrusive, CloudOps-aligned way to stabilize performance.

41. Frage
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 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.
B. 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.
C. 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.
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.

Antwort: A

42. Frage
A company needs to deploy instances of an application and associated infrastructure to multiple AWS Regions. The company wants to use a single AWS CloudFormation template to achieve this goal. The company uses AWS Organizations and wants to administer and run this template from a central administration account.
What should a CloudOps engineer do to meet these requirements?

A. In the central administration account, create a CloudFormation primary template that loads CloudFormation nested stacks from Amazon S3 buckets in the target Regions.
B. Create a CloudFormation stack set that includes service-managed permissions. Deploy the stack set into the required accounts and Regions from the central administration account.
C. Create a CloudFormation template that is stored in Amazon S3. Configure Cross-Region Replication (CRR) on the S3 bucket. Reference the required accounts and remote Regions in the input template parameters.
D. Create CloudFormation nested stacks by using a primary template in the central administration account.
Configure the required accounts and Regions for deployment of the nested stacks.

Antwort: B

Begründung:
AWS CloudFormation StackSets are designed specifically for deploying a single CloudFormation template across multiple AWS accounts and multiple AWS Regions. With service-managed permissions, StackSets integrate with AWS Organizations so the administrator does not need to manually create IAM roles in every target account. AWS documentation states that service-managed StackSets can deploy stacks to accounts managed by AWS Organizations in specific Regions and that CloudFormation creates the required IAM roles on your behalf. This directly satisfies central administration, multi-account deployment, and multi-Region deployment. Options A, B, and C add unnecessary complexity and do not provide native organization-wide lifecycle management. Nested stacks are useful for modular templates, not centralized deployment across many accounts and Regions. Therefore, StackSets with service-managed permissions is the correct CloudOps automation approach.
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43. Frage
A CloudOps engineer has many Windows Amazon EC2 instances that need to share a file system between nodes. The CloudOps engineer creates an Amazon EFS file share. After creation of the file share, the CloudOps engineer is having trouble mounting the file share to the EC2 instances. Which action should the CloudOps engineer take so that the EC2 instances can share the files?

A. Use the correct IAM credentials to mount the EFS file share.
B. Delete the EFS file share. Create an Amazon FSx for Windows File Server file share for the EC2 instances.
C. Allow the correct port for NFS through the security group and network ACL.
D. Configure NFSv4 support on the Windows operating system that is running on the EC2 instances.

Antwort: B

Begründung:
Amazon EFS is a Linux-oriented NFS file system and is not the preferred managed file-share service for Windows workloads. For Windows EC2 instances that need shared file storage, Amazon FSx for Windows File Server is the correct service because it provides a fully managed Windows file system using the SMB protocol and integrates with Microsoft Active Directory. This matches Windows application expectations and avoids forcing Windows instances into an unsuitable NFS-based design.

44. Frage
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