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Free PDF 2022 Amazon DOP-C01: AWS Certified DevOps Engineer - Professional Exam Cram Questions
Download AWS Certified DevOps Engineer - Professional Exam Dumps
NEW QUESTION 39
Your company is getting ready to do a major public announcement of a social media site on AWS. The website is running on EC2 instances deployed across multiple Availability Zones with a Multi-AZ RDS MySQL Extra Large DB Instance. The site performs a high number of small reads and writes per second and relies on an eventual consistency model. After comprehensive tests you discover that there is read contention on RDS MySQL. Which are the best approaches to meet these requirements? Choose 2 answers from the options below
- A. Increase the RDS MySQL Instance size and Implement provisioned IOPS
- B. Add an RDS MySQL read replica in each availability zone
- C. Deploy ElasticCache in-memory cache running in each availability zone
- D. Implement sharding to distribute load to multiple RDS MySQL instances
Answer: B,C
Explanation:
Explanation
Implement Read Replicas and Clastic Cache
Amazon RDS Read Replicas provide enhanced performance and durability for database (DB) instances. This replication feature makes it easy to elastically scale out beyond the capacity constraints of a single DB Instance for read-heavy database workloads. You can create one or more replicas of a given source DB Instance and serve high-volume application read traffic from multiple copies of your data, thereby increasing aggregate read throughput.
For more information on Read Replica's, please visit the below link:
* https://aws.amazon.com/rds/details/read-replicas/Amazon OastiCache is a web service that makes it easy to deploy, operate, and scale an in-memory data store or cache in the cloud. The service improves the performance of web applications by allowing you to retrieve information from fast, managed, in-memory data stores, instead of relying entirely on slower disk-based databases.
For more information on Amazon OastiCache, please visit the below link:
* https://aws.amazon.com/elasticache/
NEW QUESTION 40
Your company is supporting a number of applications that need to be moved to AWS. Initially they thought of
moving these applications to the Elastic beanstalk service. When going to the Elastic beanstalk service, you
can see that the underlying platform service is not an option in the Elastic beanstalk service. Which of the
following options can be used to port your application onto Elastic beanstalk
- A. Usecustom chef recipe's to deploy your application in Elastic beanstalk.
- B. Createa docker container for the custom application and then deploy it to Elasticbeanstalk.
- C. Usecustom Cloudformation templates to deploy the application into Elasticbeanstalk
- D. Usethe Opswork service to create a stack. In the stack, create a separate customlayer. Deploy the appl
ication to this layer and then attach the layer toElastic beanstalk
Answer: B
Explanation:
Explanation
The AWS documentation mentions the following
Clastic Beanstalk supports the deployment of web applications from Docker containers. With Docker
containers, you can define your own runtime environment. You can choose your own platform, programming
language, and any application dependencies (such as package managers or tools), that aren't supported by
other platforms. Docker containers are self-contained and include all the configuration information and
software your web application requires to run.
For more information on Elastic beanstalk and Docker, please refer to the below link:
* http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_docker.html
NEW QUESTION 41
A DevOps Engineer must create a Linux AMI in an automated fashion. The newly created AMI identification must be stored in a location where other build pipelines can access the new identification programmatically What is the MOST cost-effective way to do this?
- A. Build a pipeline in AWS CodePipeline to download and save the latest operating system Open Virtualization Format (OVF) image to an Amazon S3 bucket, then customize the image using the guestfish utility. Use the virtual machine (VM) import command to convert the OVF to an AMI, and store the AMI identification output as an AWS Systems Manager parameter.
- B. Create an AWS Systems Manager automation document with values instructing how the image should be created. Then build a pipeline in AWS CodePipeline to execute the automation document to build the AMI when triggered. Store the AMI identification output as a Systems Manager parameter.
- C. Build a pipeline in AWS CodePipeline to take a snapshot of an Amazon EC2 instance running the latest version of the application. Then start a new EC2 instance from the snapshot and update the running instance using an AWS Lambda function. Take a snapshot of the updated instance, then convert it to an AMI. Store the AMI identification output in an Amazon DynamoDB table.
- D. Launch an Amazon EC2 instance and install Packer. Then configure a Packer build with values defining how the image should be created. Build a Jenkins pipeline to invoke the Packer build when triggered to build an AMI. Store the AMI identification output in an Amazon DynamoDB table.
Answer: D
NEW QUESTION 42
What is the scope of an EBS volume?
- A. Availability Zone
- B. Region
- C. VPC
- D. Placement Group
Answer: A
Explanation:
An Amazon EBS volume is tied to its Availability Zone and can be attached only to instances in the same
Availability Zone.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/resources.html
NEW QUESTION 43
What is the scope of an EBS volume?
- A. Availability Zone
- B. Region
- C. VPC
- D. Placement Group
Answer: A
Explanation:
An Amazon EBS volume is tied to its Availability Zone and can be attached only to instances in the same Availability Zone.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/resources.html
NEW QUESTION 44
......
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