VALID AWS-DEVOPS TEST QUESTIONS | LATEST AWS-DEVOPS TEST VOUCHER

Valid AWS-DevOps Test Questions | Latest AWS-DevOps Test Voucher

Valid AWS-DevOps Test Questions | Latest AWS-DevOps Test Voucher

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Tags: Valid AWS-DevOps Test Questions, Latest AWS-DevOps Test Voucher, AWS-DevOps Latest Exam Forum, AWS-DevOps Interactive Course, AWS-DevOps Exam Pass Guide

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The AWS-DevOps Certification Exam covers a broad range of topics, including continuous delivery and deployment, infrastructure as code, monitoring and logging, security, and compliance. Candidates are expected to have a strong understanding of AWS services such as EC2, S3, RDS, CloudFormation, CodePipeline, and CodeDeploy. They should also be familiar with DevOps tools and practices, such as Jenkins, Git, Docker, and Kubernetes, and have experience working in a DevOps environment.

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q456-Q461):

NEW QUESTION # 456
Which of the following resource is used in Cloudformation to create nested stacks

  • A. AWS::CloudFormation::StackNest
  • B. AWS::CloudFormation::Nested
  • C. AWS::CloudFormation::Stack
  • D. AWS::CloudFormation::NestedStack

Answer: C

Explanation:
Explanation
The AWS Documentation mentions the following
A nested stack is a stack that you create within another stack by using the AWS:: Cloud Formation:: Stack
resource. With nested stacks, you deploy and manage all
resources from a single stack. You can use outputs from one stack in the nested stack group as inputs to
another stack in the group
For more information on AWS::CloudFormation::Stack resource, please refer to the below link:
* http://docs.aws.amazon.com/AWSCIoudFormation/latest/UserGuide/using-cfn-stack-exports.
html


NEW QUESTION # 457
You are building a Ruby on Rails application for internal, non-production use which uses MySQL as a database. You want developers without very much AWS experience to be able to deploy new code with a single command line push. You also want to set this up as simply as possible.
Which tool is ideal for this setup?

  • A. AWS Elastic Beanstalk
  • B. AWS OpsWorks
  • C. AWS CloudFormation
  • D. AWS ELB + EC2 with CLI Push

Answer: A

Explanation:
Elastic Beanstalk's primary mode of operation exactly supports this use case out of the box. It is simpler than all the other options for this question.
With Elastic Beanstalk, you can quickly deploy and manage applications in the AWS cloud without worrying about the infrastructure that runs those applications. AWS Elastic Beanstalk reduces management complexity without restricting choice or control. You simply upload your application, and Elastic Beanstalk automatically handles the details of capacity provisioning, load balancing, scaling, and application health monitoring.
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_Ruby_rails.html


NEW QUESTION # 458
You work for a startup that has developed a new photo-sharing application for mobile devices. Over recent
months your application has increased in popularity; this has resulted in a decrease in the performance of the
application clue to the increased load. Your application has a two-tier architecture that is composed of an Auto
Scaling PHP application tier and a MySQL RDS instance initially deployed with AWS Cloud Formation. Your
Auto Scaling group has a min value of 4 and a max value of 8. The desired capacity is now at 8 because of the
high CPU utilization of the instances. After some analysis, you are confident that the performance issues stem
from a constraint in CPU capacity, although memory utilization remains low. You therefore decide to move
from the general-purpose M3 instances to the compute-optimized C3 instances. How would you deploy this
change while minimizing any interruption to your end users?

  • A. Sign into the AWS Management Console, copy the old launch configuration, and create a new launch
    configuration that specifies the C3 instances. Update the Auto Scalinggroup with the new launch
    configuration. Auto Scaling will then update the instance type of all running instances.
  • B. Sign into the AWS Management Console, and update the existing launch configuration with the new C3
    instance type. Add an UpdatePolicy attribute to your Auto Scaling group that specifies
    AutoScalingRollingUpdate.
  • C. Update the launch configuration specified in the AWS CloudFormation template with the new C3
    instance type. Also add an UpdatePolicy attribute to your Auto Scalinggroup that specifies
    AutoScalingRollingUpdate. Run a stack update with the new template.
  • D. Update the launch configuration specified in the AWS CloudFormation template with the new C3
    instance type. Run a stack update with the new template. Auto Scaling will then update the instances
    with the new instance type.

Answer: C

Explanation:
Explanation
The AWS::AutoScaling::AutoScalingGroup resource supports an UpdatePoIicy attribute. This is used to
define how an Auto Scalinggroup resource is updated when an update to the Cloud Formation stack occurs. A
common approach to updating an Auto Scaling group is to perform a rolling update, which is done by
specifying the AutoScalingRollingUpdate policy. This retains the same Auto Scaling group and replaces old
instances with new ones, according to the parameters specified. For more information on rolling updates,
please visit the below link:
* https://aws.amazon.com/premiumsupport/knowledge-center/auto-scaling-group-rolling-updates/


NEW QUESTION # 459
An application is being deployed with two Amazon EC2 Auto Scaling groups, each configured with an Application Load Balancer. The application is deployed to one of the Auto Scaling groups and an Amazon Route 53 alias record is pointed to the Application Load Balancer of the last deployed Auto Scaling group. Deployments alternate between the two Auto Scaling groups.
Home security devices are making requests into the application. The Development team notes that new requests are coming into the old stack days after the deployment. The issue is caused by devices that are not observing the Time to Live (TTL) setting on the Amazon Route 53 alias record. What steps should the DevOps Engineer take to address the issue with requests coming to the old stacks, while creating minimal additional resources?

  • A. Create a fleet of Amazon EC2 instances running HAProxy behind an Application Load Balancer.
    The HAProxy instances will proxy the requests to one of the existing Auto Scaling groups. After a deployment the HAProxy instances are updated to send requests to the newly deployed Auto Scaling group.
  • B. Reduce the application to one Application Load Balancer. Create two target groups named Blue and Green. Create a rule on the Application Load Balancer pointed to a single target group. Add logic to the deployment to update the Application Load Balancer rule to the target group of the newly deployed Auto Scaling group.
  • C. Move the application to an AWS Elastic Beanstalk application with two environments. Perform new deployments on the non-live environment. After a deployment, perform an Elastic Beanstalk CNAME swap to make the newly deployed environment the live environment.
  • D. Create an Amazon CloudFront distribution. Set the two existing Application Load Balancers as origins on the distribution. After a deployment, update the CloudFront distribution behavior to send requests to the newly deployed Auto Scaling group.

Answer: B


NEW QUESTION # 460
You currently have the following setup in AWS:
1) An Elastic Load Balancer
2) Auto Scaling Group which launches EC2 Instances
3) AMIs with your code pre-installed You want to deploy the updates of your app to only a certain number of users. You want to have a cost-effective solution. You should also be able to revert back quickly.
Which of the below solutions is the most feasible one?

  • A. Create a second ELB, and a new Auto Scaling Group assigned a new Launch Configuration. Create a new AMI with the updated app. Use Route53 Weighted Round Robin records to adjust the proportion of traffic hitting the two ELBs.
  • B. Redeploy with AWS Elastic Beanstalk and Elastic Beanstalk versions. Use Route 53 Weighted Round Robin records to adjust the proportion of traffic hitting the two ELBs
  • C. Create new AMIs with the new app. Then use the new EC2 instances in half proportion to the older instances.
  • D. Create a full second stack of instances, cut the DNS over to the new stack of instances, and change the DNS back if a rollback is needed.

Answer: A

Explanation:
The Weighted Routing policy of Route53 can be used to direct a proportion of traffic to your application. The best option is to create a second CLB, attach the new Autoscaling Group and then use Route53 to divert the traffic. Option B is wrong because just having EC2 instances running with the new code will not help. Option C is wrong because Clastic beanstalk is good for development environments, and also there is no mention of having 2 environments where environment urls can be swapped. Option D is wrong because you still need Route53 to split the traffic.


NEW QUESTION # 461
......

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