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Certification DOP-C01 Questions | DOP-C01 Braindumps Downloads

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The AWS Certified DevOps Engineer - Professional (DOP-C01) certification exam is a highly sought-after qualification for professionals in the field of DevOps. DOP-C01 Exam is designed to validate the skills required for designing and implementing DevOps practices using AWS tools and services. AWS Certified DevOps Engineer - Professional certification is offered by Amazon Web Services (AWS), one of the leading cloud computing providers in the world. AWS Certified DevOps Engineer - Professional certification requires passing a rigorous exam that tests the candidate's knowledge of AWS services, DevOps best practices, and automation techniques.

The AWS Certified DevOps Engineer - Professional certification is designed for professionals who have already obtained the AWS Certified Developer - Associate or AWS Certified SysOps Administrator - Associate certification. AWS Certified DevOps Engineer - Professional certification exam is intended for DevOps engineers, software developers, and IT professionals who are responsible for designing, deploying, and managing the DevOps lifecycle in AWS environments.

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q230-Q235):

NEW QUESTION # 230
Your application has an Auto Scaling group of m3.large instances running an application that receives messages born an Amazon SQS queue.
After a while, the number of instances reaches the maximum set for the group and the number of messages on the queue continues to increase.
You have discovered that a third- party library used by the application has a bug that causes a memory leak.
What cost-effective steps can you take to continue message processing while the library developer fixes the bug?

A. Use Amazon EC2 instance memory usage CloudWatch metrics to raise alerts when they reach a defined level and send a message to Auto Scaling to fail the instance health check.
B. Enable Elastic Load Balancing health checks for the Auto Scaling group.
When Elastic Load Balancing has detected a failure, Auto Scaling will terminate the failing application's instance and launch a new one.
C. Create a new Auto Scaling launch configuration to use the r3.large instance type.
Update the Auto Scaling group with the new launch configuration.
D. Use application monitoring on the instance to restart the application when memory usage reaches a defined level.

Answer: C

NEW QUESTION # 231
Management has reported an increase in the monthly bill from Amazon Web Services, and they are extremely
concerned with this increased cost. Management has asked you to determine the exact cause of this increase.
After reviewing the billing report, you notice an increase in the data transfer cost. How can you provide
management with a better insight into data transfer use?

A. Use Amazon CloudWatch Logs to run a map-reduce on your logs to determine high usage and data
transfer.
B. Deliver custom metrics to Amazon CloudWatch per application that breaks down application data
transfer into multiple, more specific data points.
D- Using Amazon CloudWatch metrics, pull your Elastic Load Balancing outbound data transfer
metrics monthly, and include them with your billing report to show which application is causing higher
bandwidth usage.
C. Update your Amazon CloudWatch metrics to use five-second granularity, which will give better detailed
metrics that can be combined with your billing data to pinpoint anomalies.

Answer: B

Explanation:
Explanation
You can publish your own metrics to CloudWatch using the AWS CLI or an API. You can view statistical
graphs of your published metrics with the AWS Management Console.
CloudWatch stores data about a metric as a series of data points. Each data point has an associated time stamp.
You can even publish an aggregated set of data points called a statistic set.
If you have custom metrics specific to your application, you can give a breakdown to the management on the
exact issue.
Option A won't be sufficient to provide better insights.
Option B is an overhead when you can make the application publish custom metrics
Option D is invalid because just the ELB metrics will not give the entire picture
For more information on custom metrics, please refer to the below document link: from AWS
* http://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/publ
ishingMetrics.htmI

NEW QUESTION # 232
A company has built a web service that runs on Amazon EC2 instances behind an Application Load Balancer (ALB) the company has deployed the application in us-east-1 Amazon Route 53 provides an external DNS that routes traffic from example.com to the application, created with appropriate health checks.
The company has deployed a second environment for the application in eu-west-1 the company wants traffic to be routed to whichever environment results m the best response time for each user. If there is an outage in one Region, traffic should be directed to the other environment.
Which configuration will achieve this requirements?

A. A subdomain us.example.com with multivalue answer routing. the US ALB as first and the EU ALB as second
* Another subdomain eu.example.com with failover routing the EU ALB as first and the US ALB as second
* Failover routing records for example.com that are aliased to us.example.com and eu.example.com
B. A subdomain us example com with weighted routing the US ALB with weight 2 and the EU ALB with weight 1
* Another subdomain eu.example.com with weighted routing the EU ALB with weight 2 and the US ALU with weight 1
* Geolocation routing records for example.com North America aliased to us example.com and Europe aliased to eu.example.com
C. A subdomain us example com with latency-based routing the US ALB as the first target and the EU ALB as the second target.
* Another subdomain eu.example.com with latency-based routing. The EU ALB as the first target and the US ALB as the second target.
* Failover routing records for example.com aliased to us.example.com as the first target and eu.example.com as the second target.
D. A subdomain us.example.com with failover routing the US ALB as primary and the EU ALB as secondary
* Another subdomain eu.example.com with failover routing the EU ALB as primary and the US ALB as secondary
* Latency-based routing records for example com that are aliased to us example com and eu.example.com

Answer: C

NEW QUESTION # 233
A company has a mission-critical application on AWS that uses automatic scaling. The company wants the deployment lifecycle to meet the following parameters
* The application must be deployed one instance at a time to ensure the remaining fleet continues to serve traffic.
* the application is CPU intensive and must ho closely monitored
* the deployment must automatically roll back if the CPU utilization of the deployment instance exceeds 85% Which solution will meet these requirements'?

A. Use AWS CloudForrnation to create an AWS Step Functions state machine and Auto Scaling lifecycle hooks to move to one instance at a time into a wait state. Use AWS Systems Manager automation to deploy the update to each instance and move it back into the Auto Scaling group using the heartbeat timeout
B. Use AWS Elastic Beanstalk for load balancing and AWS Auto Scaling Configure an alarm tied to the CPU utilization metric Configure rolling deployments with a fixed batch size of one instance Enable enhanced health to monitor the status of the deployment and roll back based on the alarm previously created
C. Use AWS CodeDeploy with Amazon EC2 Auto Scaling Configure an alarm tied to the CPU utilization metric Use the CodeDeployDefault OneAtAtime configuration as a deployment strategy Configure automatic rollbacks within the deployment group to roll back the deployment if the alarm thresholds are breached
D. Use AWS Systems Manager to perform a blue/green deployment with Amazon EC2 Auto Scaling Configure an alarm tied to the CPU utilization metric Deploy updates one at a time Configure automatic rollbacks within the Auto Scaling group to roll back the deployment if the alarm thresholds are breached.

Answer: C

NEW QUESTION # 234
Your team is responsible for an AWS Elastic Beanstalk application. The business requires that you move to a continuous deployment model, 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 almost immediately in an emergency to the previous version?

A. Developthe application to poll for a new application version in your code repository;download and install to each running Elastic Beanstalk instance.
B. Enablerolling updates in the Elastic Beanstalk environment, setting an appropriatepause time for application startup.
C. Createa second Elastic Beanstalk environment running the new application version, andswap the environment CNAMEs.
D. Createa second Elastic Beanstalk environment with the new application version, andconfigure the old environment to redirect clients, using the HTTP 301 responsecode, to the new environment

Answer: C

Explanation:
Explanation
The AWS Documentation mentions the below
Because Elastic Beanstalk performs an in-place update when you update your application versions, your application may become unavailable to users for a short period of time. It is possible to avoid this downtime by performing a blue/green deployment, where you deploy the new version to a separate environment, and then swap CNAMCs of the two environments to redirect traffic to the new version instantly For more information on Elastic beanstalk swap URL please see the below link:
* http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.CNAM CSwap.html

NEW QUESTION # 235
......

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