SOA-C03試験番号からAWS Certified CloudOps Engineer - Associateまで,便利に合格する

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Amazon SOA-C03 Exam Syllabus Topics:

SectionWeightObjectives
Reliability and Business Continuity22%- Design and implement high availability and fault tolerance
  • 1. Configure multi-AZ, scaling, and redundancy
    - Implement backup, restore, and disaster recovery strategies
    • 1. Plan and execute recovery procedures
      • 2. Manage snapshots, backups, and replication
        Monitoring, Logging, Analysis, Remediation, and Performance Optimization22%- Remediate issues and optimize performance
        • 1. Tune resources for cost and performance efficiency
          • 2. Implement automated responses and corrective actions
            - Collect and interpret metrics, logs, and events
            • 1. Use Amazon CloudWatch for monitoring and alerting
              • 2. Analyze logs with CloudWatch Logs, CloudTrail, and other tools
                Security and Compliance18%- Implement identity and access management
                • 1. Manage IAM users, roles, policies, and permissions
                  - Enforce security controls and compliance requirements
                  • 1. Secure data at rest and in transit
                    • 2. Audit and validate compliance with standards
                      Deployment, Provisioning, and Automation20%- Automate operational tasks and workflows
                      • 1. Manage configuration and state compliance
                        • 2. Implement automation with AWS Systems Manager, Lambda, EventBridge
                          - Deploy and provision resources consistently
                          • 1. Manage infrastructure provisioning and updates
                            • 2. Use AWS CloudFormation, Terraform, or other IaC tools
                              Networking and Content Delivery18%- Configure and maintain AWS networking services
                              • 1. Manage VPC, subnets, gateways, routing, and security groups
                                - Optimize and troubleshoot network connectivity and performance
                                • 1. Work with AWS Direct Connect, Transit Gateway, and CloudFront

                                  >> SOA-C03試験番号 <<

                                  SOA-C03練習問題 & SOA-C03合格資料

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                                  Amazon AWS Certified CloudOps Engineer - Associate 認定 SOA-C03 試験問題 (Q113-Q118):

                                  質問 # 113
                                  A company runs a retail website on multiple Amazon EC2 instances behind an Application Load Balancer (ALB). The company must secure traffic to the website over an HTTPS connection.
                                  Which combination of actions should a SysOps administrator take to meet these requirements? (Select TWO.)

                                  正解：B、C

                                  解説：
                                  Comprehensive and Detailed Explanation From Exact Extract of AWS CloudOps Documents:
                                  To secure inbound web traffic over HTTPS when using an Application Load Balancer, AWS CloudOps best practices recommend terminating TLS at the load balancer. This is achieved by attaching an SSL/TLS certificate directly to the ALB listener. Therefore, option B is required. By terminating HTTPS at the ALB, traffic between clients and the load balancer is encrypted, and the ALB can then forward traffic to backend EC2 instances using HTTP or HTTPS based on design requirements.
                                  The certificate used for a public-facing retail website must be trusted by internet browsers. AWS Certificate Manager (ACM) public certificates are specifically designed for this purpose and are trusted by common browsers and operating systems. Therefore, option D is required. ACM manages certificate provisioning, renewal, and deployment automatically, which significantly reduces operational overhead.
                                  Option A is incorrect because attaching certificates to each EC2 instance is unnecessary and does not scale well. Option C is incorrect because private certificates are intended for internal use cases and are not trusted by public browsers. Option E is incorrect because ACM-managed public certificates cannot be exported; they must be attached directly to supported AWS services such as ALBs.
                                  This approach aligns with AWS CloudOps guidance for secure, scalable, and highly available HTTPS architectures.
                                  References:
                                  Elastic Load Balancing User Guide - HTTPS listeners for Application Load Balancers AWS Certificate Manager User Guide - Public certificates AWS SysOps Administrator Study Guide - Securing applications with ALB and ACM


                                  質問 # 114
                                  A company runs a non-production application on an Amazon EC2 instance. The application logs all error messages to a log file on the local file system. All entries that are written to the log file start with the word "error." A CloudOps engineer must implement a solution that gives the company the ability to search for all occurrences of the error during the previous year.
                                  Which solution will meet this requirement?

                                  正解：D

                                  解説：
                                  The CloudWatch agent can collect the application's local log file and send the entries to CloudWatch Logs, where they can be retained and searched over the required time period. A metric filter can identify log events containing the word "error," enabling the company to locate and analyze those occurrences efficiently.


                                  質問 # 115
                                  A company's Amazon EC2 instance with high CPU utilization is a t3.large instance running a test web app. The company determines the app would run better on a compute-optimized large instance.
                                  What should the CloudOps engineer do?

                                  正解：A

                                  解説：
                                  As described in the AWS Cloud Operations and EC2 Management documentation, changing an instance type (e.g., from T3 to C5) requires that the instance be stopped first. Once stopped, the engineer can modify the instance type through the AWS Management Console, CLI, or API, then start the instance again to apply changes.
                                  This process preserves the root volume, networking configuration, and data, making it an operationally safe and efficient way to upgrade to a different instance family.
                                  Changing the instance type while running (Option D) is unsupported. VM Import/Export (Option A) is for external VM migration. Hibernation (Option B) does not apply to type changes.
                                  Thus, Option C is correct - stopping the instance, changing its type, and restarting it meets AWS best practices.


                                  質問 # 116
                                  A CloudOps engineer creates an AWS CloudFormation template to define an application stack that can be deployed in multiple AWS Regions. The CloudOps engineer also creates an Amazon CloudWatch dashboard by using the AWS Management Console. Each deployment of the application requires its own CloudWatch dashboard.
                                  How can the CloudOps engineer automate the creation of the CloudWatch dashboard each time the application is deployed?

                                  正解：C

                                  解説：
                                  According to CloudOps automation and monitoring best practices, CloudWatch dashboards should be provisioned as infrastructure-as-code (IaC) resources using AWS CloudFormation to ensure consistency, repeatability, and version control. AWS CloudFormation supports the AWS::CloudWatch::Dashboard resource, where the DashboardBody property accepts a JSON object describing widgets, metrics, and layout.
                                  By exporting the existing dashboard configuration as JSON and embedding it into the CloudFormation template, every deployment of the application automatically creates its corresponding dashboard. This method aligns with the CloudOps requirement for automated deployment and operational visibility within the same stack lifecycle.
                                  AWS documentation explicitly states:
                                  "Use the AWS::CloudWatch::Dashboard resource to create a dashboard from your template. You can include the same JSON you use to define a dashboard in the console." Option A requires manual execution. Options C and D incorrectly reference or reuse existing dashboards, failing to produce unique, deployment-specific dashboards.
                                  References:* AWS Certified CloudOps Engineer - Associate (SOA-C03) Exam Guide - Domain 1:
                                  Monitoring and Logging* AWS CloudFormation User Guide - Resource Type: AWS::CloudWatch::
                                  Dashboard* AWS Well-Architected Framework - Operational Excellence Pillar* Amazon CloudWatch - Automating Dashboards with Infrastructure as Code


                                  質問 # 117
                                  A CloudOps engineer launches two Amazon EC2 instances and creates a single public subnet for testing purposes in the same Availability Zone. The CloudOps engineer wants Amazon Route 53 to respond with a public IP address only if a test webpage on an instance is running. However, even when the test webpage is unavailable, Route 53 still responds with the public IP addresses from both instances.
                                  How can the CloudOps engineer resolve this issue?

                                  正解：C

                                  解説：
                                  Route 53 multivalue answer routing can return multiple IP addresses and can be combined with health checks so only healthy records are returned. AWS documentation states that when a health check is associated with a multivalue answer record, Route 53 responds with the corresponding IP address only when the health check is healthy. The current problem occurs because Route 53 is returning both IPs even when the webpage is down, which indicates that health checks are not being used correctly. Latency-based routing is used to route users to lower-latency endpoints across Regions, not to return multiple tested instance IPs in the same subnet.
                                  Weighted routing distributes traffic based on weights but does not solve this specific "return only healthy IPs" requirement unless paired with health checks. Another subnet is irrelevant.


                                  質問 # 118
                                  ......

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