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Ben Lee Ben Lee

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AWS-DevOps-Engineer-Professional시험문제집즉덤프가지니고있는장점 - AWS Certified DevOps Engineer - Professional

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시험대비 AWS-DevOps-Engineer-Professional최신 시험덤프공부자료 인증공부

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최신 AWS Certified DevOps Engineer AWS-DevOps-Engineer-Professional 무료샘플문제 (Q496-Q501):

질문 # 496
You have an application which consists of EC2 instances in an Auto Scaling group. Between a particular time frame every day, there is an increase in traffic to your website. Hence users are complaining of a poor response time on the application. You have configured your Auto Scaling group to deploy one new EC2 instance when CPU utilization is greater than 60% for 2 consecutive periods of 5 minutes. What is the least cost-effective way to resolve this problem?

A. Decrease the consecutive number of collection periods
B. Decrease the collection period to ten minutes
C. Decrease the threshold CPU utilization percentage at which to deploy a new instance
D. Increase the minimum number of instances in the Auto Scaling group

정답：D

설명：
If you increase the minimum number of instances, then they will be running even though the load is not high on the website. Hence you are incurring cost even though there is no need.
All of the remaining options are possible options which can be used to increase the number of instances on a high load.
For more information on On-demand scaling, please refer to the below link:
http://docs.aws.amazon.com/autoscaling/latest/userguide/as-scale-based-on-demand. html
Note: The tricky part where the question is asking for 'least cost effective way". You got the design consideration correctly but need to be careful on how the question is phrased.

질문 # 497
To run an application, a DevOps Engineer launches an Amazon EC2 instances with public IP addresses in a public subnet. A user data script obtains the application artifacts and installs them on the instances upon launch. A change to the security classification of the application now requires the instances to run with no access to the Internet. While the instances launch successfully and show as healthy, the application does not seem to be installed.
Which of the following should successfully install the application while complying with the new rule?

A. Launch the instances in a public subnet with Elastic IP addresses attached. Once the application is installed and running, run a script to disassociate the Elastic IP addresses afterwards.
B. Set up a NAT gateway. Deploy the EC2 instances to a private subnet. Update the private subnet's route table to use the NAT gateway as the default route.
C. Publish the application artifacts to an Amazon S3 bucket and create a VPC endpoint for S3. Assign an IAM instance profile to the EC2 instances so they can read the application artifacts from the S3 bucket.
D. Create a security group for the application instances and whitelist only outbound traffic to the artifact repository. Remove the security group rule once the install is complete.

정답：B

질문 # 498
You are using Chef in your data center. Which service is designed to let the customer leverage existing Chef recipes in AWS?

A. AWS CloudFormation
B. Amazon Simple Workflow Service
C. AWSOpsWorks
D. AWS Elastic Beanstalk

정답：C

설명：
Explanation
AWS OpsWorks is a configuration management service that uses Chef, an automation platform that treats server configurations as code. OpsWorks uses Chef to automate how servers are configured, deployed, and managed across your Amazon Clastic Compute Cloud (Amazon CC2) instances or on-premises compute environments. OpsWorks has two offerings, AWS Opsworks for Chef Automate, and AWS OpsWorks Stacks.
For more information on Opswork and SNS please refer to the below link:
* https://aws.amazon.com/opsworks/

질문 # 499
An online company uses Amazon EC2 Auto Scaling extensively to provide an excellent customer experience while minimizing the number of running EC2 instances. The company's self-hosted Puppet environment in the application layer manages the configuration of the instances. The IT manager wants the lowest licensing costs and wants to ensure that whenever the EC2 Auto Scaling group scales down, removed EC2 instances are deregistered from the Puppet master as soon as possible. How can the requirement be met?

A. Bake the AWS CodeDeploy agent into the base AMI. When the Auto Scaling group scales out, use CodeDeploy to install the Puppet agent, and execute a script to register the newly deployed instances to the Puppet master. When the Auto Scaling group scales in, use the CodeDeploy ApplicationStop lifecycle hook to run a script to de-register the instance from the Puppet master.
B. At instance launch time, use EC2 user data to deploy the AWS CodeDeploy agent. When the Auto Scaling group scales out, use CodeDeploy to install the Puppet agent, and run a script to register the newly deployed instances to the Puppet master. When the Auto Scaling group scales in, use the EC2 user data instance stop script to run a script to de-register the instance from the Puppet master.
C. At instance launch time, use EC2 user data to deploy the AWS CodeDeploy agent. Use CodeDeploy to install the Puppet agent. When the Auto Scaling group scales out, run a script to register the newly deployed instances to the Puppet master. When the Auto Scaling group scales in, use the EC2 Auto Scaling lifecycle hook to trigger de-registration from the Puppet master. EC2_INSTANCE_TERMINATING
D. Bake the AWS Systems Manager agent into the base AMI. When the Auto Scaling group scales out, use the AWS Systems Manager to install the Puppet agent, and run a script to register the newly deployed instances to the Puppet master. When the Auto Scaling group scales in, use the Systems Manager instance stop lifecycle hook to run a script to de-register the instance from the Puppet master.

정답：B

질문 # 500
A Solution Architect is designing a three-tier web application. The Architect wants to restrict access to the
database tier to accept traffic from the application servers only. However, these application servers are in an
Auto Scaling group and may vary in quantity.
How should the Architect configure the database servers to meet the requirements?

A. Configure the database subnet network ACL to deny all inbound non-database traffic from the
application-tier subnet.
B. Configure the database security group to allow database traffic from the application server security
group.
C. Configure the database security group to allow database traffic from the application server IP addresses.
D. Configure the database subnet network ACL to allow inbound database traffic from the application-tier
subnet.

정답：A

질문 # 501
......

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Ben Lee Ben Lee

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