2025 AMAZON AWS-DEVOPS: AWS CERTIFIED DEVOPS ENGINEER - PROFESSIONAL UPDATED TESTDUMP

2025 Amazon AWS-DevOps: AWS Certified DevOps Engineer - Professional Updated Testdump

2025 Amazon AWS-DevOps: AWS Certified DevOps Engineer - Professional Updated Testdump

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Tags: AWS-DevOps Testdump, AWS-DevOps Online Bootcamps, AWS-DevOps Exam Tests, AWS-DevOps Mock Test, New AWS-DevOps Exam Preparation

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q250-Q255):

NEW QUESTION # 250
You set up a scalable continuous integration platform on AWS.
The platform consists of a master node that can delegate project build jobs to multiple slave nodes, all running on Amazon EC2.
The build output will be stored in Amazon S3.
You always have five slave nodes deployed. Each slave node can handle 10 build jobs simultaneously.
Your master node publishes a custom Amazon CloudWatch metric with the name
"RunningBuildiobs" that Slows you to programmatically track how many build jobs are running across your platform.
Which two configuration options will allow you to flexibly scale your platform to support more than
50 simultaneous build jobs while minimizing costs? Choose 2 answers

  • A. Place your fleet of slave nodes in an Auto Scaling group.
    Configure a CloudWatch alarm that triggers an Auto Scaling policy to launch Amazon EC2 Instances when "RunningBuildJobs" is greater than 45 for more than five minutes.
  • B. Place your fleet of slave nodes in an Auto Scaling group.
    Configure a CloudWatch alarm that triggers an Auto Scaling policy to terminate Amazon EC2 instances when "RunningBuildJobs" is less than 40 for more than five minutes.
  • C. Configure a CloudWatch alarm that sends an alert when "RunningBuildJobs" is greater than 45 for more than five minutes.
    Use Amazon Simple Queue Service to process additional build jobs when the CloudWatch alarm is triggered.
  • D. Configure your fleet of slave nodes to fully utilize all of your purchased Amazon EC2 Heavy Utilization Reserved Instances.
    Configure a CloudWatch alarm that launches new Amazon EC2 instances when
    "RunningBuildJobs" is less than 40 for more than five minutes.
  • E. Run your fleet of slave nodes in an Auto Scaling group.
    Configure a Cloudwatch alarm that launches new Amazon EC2 Dedicated Instances when
    "RunningBuildJobs" is less than 40 for more than five minutes.

Answer: A,B


NEW QUESTION # 251
Your system uses a multi-master, multi-region DynamoDB configuration spanning two regions to achieve high availablity. For the first time since launching your system, one of the AWS Regions in which you operate over went down for 3 hours, and the failover worked correctly. However, after recovery, your users are experiencing strange bugs, in which users on different sides of the globe see different data. What is a likely design issue that was not accounted for when launching?

  • A. The system does not have Lambda Functor Repair Automatons, to perform table scans and chack for corrupted partition blocks inside the Table in the recovered Region.
  • B. The system did not implement DynamoDB Table Defragmentation for restoring partition performance in the Region that experienced an outage, so data is served stale.
  • C. The system did not include repair logic and request replay buffering logic for post-failure, to re- synchronize data to the Region that was unavailable for a number of hours.
  • D. The system did not use DynamoDB Consistent Read requests, so the requests in different areas are not utilizing consensus across Regions at runtime.

Answer: C

Explanation:
When using multi-region DynamoDB systems, it is of paramount importance to make sure that all requests made to one Region are replicated to the other. Under normal operation, the system in question would correctly perform write replays into the other Region. If a whole Region went down, the system would be unable to perform these writes for the period of downtime. Without buffering write requests somehow, there would be no way for the system to replay dropped cross- region writes, and the requests would be serviced differently depending on the Region from which they were served after recovery.
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Streams.CrossRegionRepl
.html


NEW QUESTION # 252
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 CloudFormation.
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. 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.
  • B. Update the launch configuration specified in the AWS CloudFormation template with the new C3 instance type.
    Also add an UpdatePolicy attribute to your Auto Scaling group that specifies AutoScalingRollingUpdate.
    Run a stack update with the new template.
  • C. 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.
  • D. 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 Scaling group with the new launch configuration.
    Auto Scaling will then update the instance type of all running instances.

Answer: B


NEW QUESTION # 253
Your team is responsible for an AWS Elastic Beanstalk application.
The business requires that you move to a continuous deployment model, thus releasing updates to the application multiple times per day with zero downtime.
What should you do to enable this and still be able to roll back to the previous version almost immediately in an emergency?

  • A. Create a second Elastic Beanstalk environment with the new application version, and configure the old environment to use the HTTP 301 response code to redirect clients to the new environment.
  • B. Create a second Elastic Beanstalk environment that runs the new application version, and swap the environment CNAMEs
  • C. Configure the application to poll for a new application version in your code repository; download and install the new version to each running Elastic Beanstalk instance.
  • D. Enable roiling updates in the Elastic Beanstalk environment and set an appropriate pause time for application startup.

Answer: B


NEW QUESTION # 254
When you add lifecycle hooks to an Autoscaling Group, what are the wait states that occur during the scale in
and scale out process. Choose 2 answers from the options given below

  • A. Terminating:Wait
  • B. Exiting:Wait
  • C. Pending:Wait
  • D. Launching:Wait

Answer: A,C

Explanation:
Explanation
The AWS Documentation mentions the following
After you add lifecycle hooks to your Auto Scaling group, they work as follows:
1. Auto Scaling responds to scale out events by launching instances and scale in events by terminating
instances.
2. Auto Scaling puts the instance into a wait state (Pending:Wait orTerminating: Wait). The instance is paused
until either you tell Auto Scaling to continue or the timeout period ends.
For more information on Autoscaling Lifecycle hooks, please visit the below URL: * http://docs.aws.a
mazon.com/autoscaling/latest/userguide/lifecycle-hooks.htm I


NEW QUESTION # 255
......

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