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Amazon DOP -C01（AWS Certified DevOps Engineer -Professional）試験は、DevOpsエンジニアリングの分野の専門家のスキルと専門知識を検証する認定です。この認定は、AWSプラットフォームで動的でスケーラブルなシステムを設計および管理する候補者の能力を示すように設計されています。この試験は、クラウド環境でアプリケーションの開発と運用の経験があった人を対象としています。

Amazon AWS Certified DevOps Engineer - Professional 認定 AWS-DevOps-Engineer-Professional 試験問題 (Q509-Q514):

質問 # 509
You are using AWS Elastic Beanstalk to deploy your application and must make data stored on an Amazon Elastic Block Store (EBS) volume snapshot available to the Amazon Elastic Compute Cloud (EC2) instances. How can you modify your Elastic Beanstalk environment so that the data is added to the Amazon EC2 instances every time you deploy your application?

A. Add commands to a configuration file in the .ebextensions folder of your deployable archive that uses the create-volume Amazon EC2 API or CLI to create a new ephemeral volume based on the specified snapshot and then mounts the volume on launch.
B. Add commands to the Amazon EC2 user data that will be executed by eb-init, which uses the create- volume Amazon EC2 API or CLI to create a new Amazon EBS volume based on the specified snapshot, and then mounts the volume on launch.
C. Add commands to the Chef recipe associated with your environment, use the create-volume Amazon EC2 API or CLI to create a new Amazon EBS volume based on the specified snapshot, and then mount the volume on launch.
D. Add commands to a configuration file in the .ebextensions folder of your deployable archive that mount an additional Amazon EBS volume on launch.
Also add a "BlockDeviceMappings" option, and specify the snapshot to use for the block device in the Auto Scaling launch configuration.

正解：D

質問 # 510
You have an asynchronous processing application usingan Auto Scaling Group and an SQS Queue. The Auto Scaling Group scales according to the depth of the job queue. The completion velocity of the jobs has gone down, the Auto Scaling Group size has maxec out, but the inbound job velocity did not increase. What is a possible issue?

A. The routing tables changed and none of the workers can process events anymore.
B. Some of the new jobs coming in are malformed and unprocessable.
C. The scaling metric is not functioning correctly.
D. Someone changed the 1AM Role Policy on the instances in the worker group and broke permissions to access the queue.

正解：B

解説：
Explanation
This question is more on the grounds of validating each option
Option B is invalid, because the Route table would have an effect on all worker processes and no jobs would have been completed.
Option C is invalid because if the 1AM Role was invalid then no jobs would be completed.
Option D is invalid because the scaling is happening, its just that the jobs are not getting completed.
For more information on Scaling on Demand, please visit the below URL:
* http://docs.aws.a
mazon.com/autoscaling/latest/userguide/as-scale-based-on-demand.html

質問 # 511
You are planning on using the Amazon RDS facility for Fault tolerance for your application. How does Amazon RDSmuIti Availability Zone model work

A. A second, standby database is deployed and maintained in a different availability zone from master using asynchronous replication.
B. A second, standby database is deployed and maintained in a different region from master using synchronous replication.
C. A second, standby database is deployed and maintained in a different region from master using asynchronous replication.
D. A second, standby database is deployed and maintained in a different availability zone from master, using synchronous replication.

正解：D

解説：
Explanation
Amazon RDS Multi-AZ deployments provide enhanced availability and durability for Database (DB) Instances, making them a natural fit for production database workloads. When you provision a Multi-AZ DB Instance, Amazon RDS automatically creates a primary DB Instance and synchronously replicates the data to a standby instance in a different Availability Zone (AZ). Cach AZ runs on its own physically distinct, independent infrastructure, and is engineered to be highly reliable.
In case of an infrastructure failure, Amazon RDS performs an automatic failover to the standby (or to a read replica in the case of Amazon Aurora), so that you can resume database operations as soon as the failover is complete.
The below diagram from the AWS documentation shows how this is configured

Option B is invalid because the replication is synchronous.
Option C and D are invalid because this is built around AZ and not regions.
For more information on Multi-AZ RDS, please visit the below URL:
* https://aws.amazon.com/rds/details/multi-az/

質問 # 512
A user is defining a policy for the IAM user. Which of the below mentioned elements can be found in an IAM policy?

A. Supported Data Types
B. Not Effect
C. Principal Resource
D. Version Management

正解：A

解説：
A user can define various elements for an IAM policy. The elements include Version, ID, Statement, Sid, Effect, Principal, Not Principal, Action, Not Action, Resource, Not Resource, Condition, and Supported Data Types Reference:
http://docs.aws.amazon.com/IAM/latest/UserGuide/AccessPolicyLanguage_ElementDescriptions.
html

質問 # 513
A company wants to use a grid system for a proprietary enterprise in-memory data store on top of AWS. This system can run in multiple server nodes in any Linux-based distribution. The system must be able to reconfigure the entire cluster every time a node is added or removed. When adding or removing nodes, an / etc./cluster/nodes.config file must be updated, listing the IP addresses of the current node members of that cluster The company wants to automate the task of adding new nodes to a cluster.
What can a DevOps Engineer do to meet these requirements?

A. Put the file nodes.config in version control. Create an AWS CodeDeploy deployment configuration and deployment group based on an Amazon EC2 tag value for the cluster nodes. When adding a new node to the cluster, update the file with all tagged instances, and make a commit in version control. Deploy the new file and restart the services.
B. Create an Amazon S3 bucket and upload a version of the etc/cluster/nodes.config file. Create a crontab script that will poll for that S3 file and download it frequently. Use a process manager, such as Monit or systemd, to restart the cluster services when it detects that the new file was modified. When adding a node to the cluster, edit the file's most recent members. Upload the new file to the S3 bucket.
C. Create a user data script that lists all members of the current security group of the cluster and automatically updates the /etc/cluster/nodes.config file whenever a new instance is added to the cluster
D. Use AWS OpsWorks Stacks to layer the server nodes of that cluster. Create a Chef recipe that populates the content of the /etc/cluster/nodes.config file and restarts the service by using the current members of the layer. Assign that recipe to the Configure lifecycle event.

正解：A

質問 # 514
......

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Amazon AWS-DevOps-Engineer-Professional学習体験談私たちが行うすべてと約束はあなたの視点にあります、それはIt-Passports AWS-DevOps-Engineer-Professional試験勉強過去問が提供した試験問題資料は絶対あなたが試験に合格することを保証しますから、AWS-DevOps-Engineer-Professional 勉強資料は公式AmazonのAWS-DevOps-Engineer-Professional試験トレーニング授業、AmazonのAWS-DevOps-Engineer-Professional 自習ガイド、AmazonのAWS-DevOps-Engineer-Professional の試験と実践やAmazonのAWS-DevOps-Engineer-Professionalオンラインテストなどに含まれています、Amazon AWS-DevOps-Engineer-Professional学習体験談それで、認定を取得するのは彼らにとってキー方法です、有用かどうか。

外に出られた感傷も、今は全部後回しだ、テレビモニターからは派手な効果音や音楽がAWS-DevOps-Engineer-Professional流れてくる、私たちが行うすべてと約束はあなたの視点にあります、それはIt-Passportsが提供した試験問題資料は絶対あなたが試験に合格することを保証しますから。

試験の準備方法-検証するAWS-DevOps-Engineer-Professional学習体験談試験-完璧なAWS-DevOps-Engineer-Professional試験勉強過去問

AWS-DevOps-Engineer-Professional 勉強資料は公式AmazonのAWS-DevOps-Engineer-Professional試験トレーニング授業、AmazonのAWS-DevOps-Engineer-Professional 自習ガイド、AmazonのAWS-DevOps-Engineer-Professional の試験と実践やAmazonのAWS-DevOps-Engineer-Professionalオンラインテストなどに含まれています。

それで、認定を取得するのは彼らにとってキー方法です、有用かどうか。

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実用的なAWS-DevOps-Engineer-Professional学習体験談 &保証するAmazon AWS-DevOps-Engineer-Professional有用的な試験の成功AWS-DevOps-Engineer-Professional試験勉強過去問

高品質なAWS-DevOps-Engineer-Professional学習体験談一回合格-検証するAWS-DevOps-Engineer-Professional試験勉強過去問

Amazon AWS Certified DevOps Engineer - Professional 認定 AWS-DevOps-Engineer-Professional 試験問題 (Q509-Q514):

試験の準備方法-検証するAWS-DevOps-Engineer-Professional学習体験談試験-完璧なAWS-DevOps-Engineer-Professional試験勉強過去問

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