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Amazon DOP-C01 認定試験の出題範囲：

トピック 出題範囲
トピック 1
  • Determine Application And Infrastructure Deployment Models Based On Business Needs
トピック 2
  • Determine Deployment Services Based On Deployment Needs
  • Determine How To Implement Lifecycle Hooks On A Deployment
トピック 3
  • Determine The Right Services Based On Business Needs
  • Determine How To Design And Automate Disaster Recovery Strategies
トピック 4
  • Apply Concepts Required To Enforce Standards For Logging, Metrics, Monitoring, Testing, And Security
トピック 5
  • Implement and Manage Continuous Delivery Systems and Methodologies on AWS
トピック 6
  • Determine How To Implement Tagging And Other Metadata Strategies
  • Determine How To Optimize Cost Through Automation
トピック 7
  • Apply Concepts Required To Audit, Log, And Monitor Operating Systems, Infrastructures, And Applications
トピック 8
  • Determine How To Set Up The Aggregation, Storage, And Analysis Of Logs And Metrics
トピック 9
  • Design, Manage, and Maintain Tools to Automate Operational Processes
トピック 10
  • Determine Source Control Strategies And How To Implement Them
  • Monitoring And Logging
トピック 11
  • Determine How To Implement High Availability, Scalability, And Fault Tolerance
  • Determine How To Automate Event Management And Alerting
トピック 12
  • Apply Security Concepts In The Automation Of Resource Provisioning
  • Apply Concepts Required To Build And Manage Artifacts Securely
トピック 13
  • Determine Deployment
  • Delivery Strategies
  • Implement Them Using AWS Services
トピック 14
  • Implement and Automate Security Controls, Governance Processes, and Compliance Validation
トピック 15
  • Apply Concepts Required To Manage Systems Using AWS Configuration Management Tools And Services
トピック 16
  • Apply Concepts Required To Automate A CI
  • CD Pipeline
  • Policies And Standards Automation
トピック 17
  • Apply Concepts Required To Set Up Event-Driven Automated Actions
  • Determine Appropriate Use Of Multi-AZ Versus Multi-Region Architectures
トピック 18
  • Configuration Management And Infrastructure As Code
  • Apply Concepts Required To Automate And Integrate Testing
トピック 19
  • Apply Concepts Required To Automate Monitoring And Event Management Of An Environment
トピック 20
  • Apply Concepts Required To Implement Governance Strategies
  • Troubleshoot Issues And Determine How To Restore Operations

>> DOP-C01参考書内容 <<

DOP-C01認定資格試験、DOP-C01技術内容

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Amazon AWS Certified DevOps Engineer - Professional 認定 DOP-C01 試験問題 (Q128-Q133):

質問 # 128
An ecommerce company is receiving reports that its order history page is experiencing delays in reflecting the processing status of orders. The order processing system consists of an AWS Lambda function using reserved concurrency. The Lambda function processes order messages from an Amazon SQS queue and inserts processed orders into an Amazon DynamoDB table. The DynamoDB table has Auto Scaling enabled for read and write capacity.
Which actions will diagnose and resolve the delay? (Select TWO.)

  • A. Check the Throttles metric for the Lambda function and increase the Lambda function timeout.
  • B. Check the ApproximateAgeOfOldestMessage metric for the SQS queue and increase the Lambda function concurrency limit.
  • C. Check the ThrottledWriteRequests metric for the DynamoDB table and increase the maximum write capacity units for the table's Auto Scaling policy.
  • D. Check the ApproximateAgeOfOldestMessage metric for the SQS queue and configure a redrive policy on the SQS queue.
  • E. Check the NumberOfMessagesSent metric for the SQS queue and increase the SQS queue visibility timeout.

正解：B、D
質問 # 129
A company is using an AWS CodeBuild project to build and package an application. The packages are copied to a shared Amazon S3 bucket before being deployed across multiple AWS accounts.
The buildspec.yml file contains the following:

The DevOps Engineer has noticed that anybody with an AWS account is able to download the artifacts.
What steps should the DevOps Engineer take to stop this?

  • A. Modify the post_build command to remove --acl authenticated-readand configure a bucket policy that allows read access to the relevant AWS accounts only.
  • B. Create an S3 bucket policy that grants read access to the relevant AWS accounts and denies read access to the principal "*"
  • C. Configure a default ACL for the S3 bucket that defines the set of authenticated users as the relevant AWS accounts only and grants read-only access.
  • D. Modify the post_buildto command to use --acl public-readand configure a bucket policy that grants read access to the relevant AWS accounts only.

正解：D 解説：
Explanation/Reference:
質問 # 130
For AWS CloudFormation, which stack state refuses UpdateStack calls?

  • A. <code>UPDATE_COMPLETE</code>
  • B. <code>UPDATEROLLBACKFAILED</code>
  • C. <code>UPDATEROLLBACKCOMPLETE</code>
  • D. <code>CREATE_COMPLETE</code>

正解：B 解説：
When a stack is in the UPDATEROLLBACKFAILED state, you can continue rolling it back to return it to a working state (to UPDATEROLLBACKCOMPLETE). You cannot update a stack that is in the UPDATEROLLBACKFAILED state. However, if you can continue to roll it back, you can return the stack to its original settings and try to update it again.
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks- continueu pdaterollback.html
質問 # 131
A rapidly growing company wants to scale for Developer demand for AWS development environments. Development environments are created manually in the AWS Management Console. The Networking team uses AWS CloudFormation to manage the networking infrastructure, exporting stack output values for the Amazon VPC and all subnets. The development environments have common standards, such as Application Load Balancers, Amazon EC2 Auto Scaling groups, security groups, and Amazon DynamoDB tables.
To keep up with the demand, the DevOps Engineer wants to automate the creation of development environments. Because the infrastructure required to support the application is expected to grow, there must be a way to easily update the deployed infrastructure.
CloudFormation will be used to create a template for the development environments.
Which approach will meet these requirements and quickly provide consistent AWS environments for Developers?

  • A. Use Fn:ImportValue intrinsic functions in the Parameters section of the master template to retrieve Virtual Private Cloud (VPC) and subnet values. Define the development resources in the order they need to be created in the CloudFormation nested stacks. Use the CreateChangeSet and commands to update existing development environments.
    ExecuteChangeSet
  • B. Use nested stacks to define common infrastructure components. To access the exported values, use to reference the Networking team's template. To retrieve Virtual Private Cloud (VPC) TemplateURL and subnet values, use Fn::ImportValue intrinsic functions in the Parameters section of the master template. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.
  • C. Use nested stacks to define common infrastructure components. Use Fn::ImportValue intrinsic functions with the resources of the nested stack to retrieve Virtual Private Cloud (VPC) and subnet values. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.
  • D. Use Fn:ImportValue intrinsic functions in the Resources section of the template to retrieve Virtual Private Cloud (VPC) and subnet values. Use CloudFormation StackSets for the development environments, using the Count input parameter to indicate the number of environments needed.
    use the UpdateStackSet command to update existing development environments.

正解：D
質問 # 132
A DevOps Engineer is developing a deployment strategy that will allow for data-driven decisions before a feature is fully approved for general availability. The current deployment process uses AWS CloudFormation and blue/green-style deployments. The development team has decided that customers should be randomly assigned to groups, rather than using a set percentage, and redirects should be avoided.
What process should be followed to implement the new deployment strategy?

  • A. Configure Amazon CloudFront with an AWS [email protected] function to set a cookie when CloudFront receives a request. Assign the user to a version A or B, then return the corresponding version to the viewer.
  • B. Configure Amazon CloudFront with an AWS [email protected] function to set a cookie when CloudFront receives a request. Assign the user to a version A or B, and configure the web server to redirect to version A or B.
  • C. Configure Amazon Route 53 with an AWS Lambda function to set a cookie when Amazon CloudFront receives a request. Assign the user to version A or B, then return the corresponding version to the viewer.
  • D. Configure Amazon Route 53 weighted records for the blue and green stacks, with 50% of traffic configured to route to each stack.

正解：A
質問 # 133
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