DOP-C01 TEST PREP - DOP-C01 VALID EXAM SAMPLE

DOP-C01 Test Prep - DOP-C01 Valid Exam Sample

DOP-C01 Test Prep - DOP-C01 Valid Exam Sample

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The AWS Certified DevOps Engineer - Professional (DOP-C01) exam is a professional-level certification that validates an individual's expertise in DevOps practices, tools and technologies on the Amazon Web Services (AWS) platform. DOP-C01 Exam is designed for experienced DevOps professionals who have a strong understanding of both software development and operations, and who are proficient in using AWS services to design, deploy and manage scalable and fault-tolerant applications.

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q192-Q197):

NEW QUESTION # 192
A DevOps Engineer is working with an application deployed to 12 Amazon EC2 instances across 3 Availability Zones. New instances can be started from an AMI image. On a typical day, each EC2 instance has
30% utilization during business hours and 10% utilization after business hours. The CPU utilization has an immediate spike in the first few minutes of business hours. Other increases in CPU utilization rise gradually.
The Engineer has been asked to reduce costs while retaining the same or higher reliability.
Which solution meets these requirements?

  • A. Create two Amazon CloudWatch Events rules with schedules before and after business hours begin and end. Create an AWS CloudFormation stack, which creates an EC2 Auto Scaling group, with a parameter for the number of instances. Invoke the stack from each rule, passing a parameter value of three in the morning, and six in the evening.
  • B. Create an Amazon EC2 Auto Scaling group using the AMI image, with a scaling action based on the Auto Scaling group's CPU Utilization average with a target of 75%. Create a scheduled action for the group to adjust the minimum number of instances to three after business hours end and reset to six before business hours begin.
  • C. Create an EC2 Auto Scaling group using the AMI image, with a scaling action based on the Auto Scaling group's CPU Utilization average with a target of 75%. Create a scheduled action to terminate nine instances each evening after the close of business.
  • D. Create two Amazon CloudWatch Events rules with schedules before and after business hours begin and end. Create two AWS Lambda functions, one invoked by each rule. The first function should stop nine instances after business hours end, the second function should restart the nine instances before the business day begins.

Answer: A


NEW QUESTION # 193
An Amazon EC2 instance with no internet access is running in a Virtual Private Cloud (VPC) and needs to download an object from a restricted Amazon S3 bucket. When the DevOps Engineer tries to gain access to the object, an AccessDenied error is received.
What are the possible causes for this error? (Choose three.)

  • A. There is an error in the IAM role configuration.
  • B. The object has been moved to Amazon Glacier.
  • C. There is an error in the S3 bucket policy.
  • D. There is an error in the VPC endpoint policy.
  • E. The S3 bucket default encryption is enabled.
  • F. S3 versioning is enabled.

Answer: A,C,D

Explanation:
Explanation/Reference:
Reference: https://aws.amazon.com/premiumsupport/knowledge-center/s3-403-upload-bucket/


NEW QUESTION # 194
A company is building a web and mobile application that uses a serverless architecture powered by AWS Lambda and Amazon API Gateway. The company wants to fully automate the backend Lambda deployment based on code that is pushed to the appropriate environment branch in an AWS CodeCommit repository. The deployment must have the following: *Separate environment pipelines for testing and production. *Automatic deployment that occurs for test environments only. Which steps should be taken to meet these requirements?

  • A. Create an AWS CodeBuild configuration for test and production environments. Configure the production pipeline to have a manual approval step. Create one CodeCommit repository with a branch for each environment. Push the Lambda function code to an Amazon S3 bucket. Set up the deployment step to deploy the Lambda functions from the S3 bucket.
  • B. Create two AWS CodePipeline configurations for test and production environments. Configure the production pipeline to have a manual approval step. Create a CodeCommit repository for each environment. Set up each CodePipeline to retrieve the source code from the appropriate repository. Set up the deployment step to deploy the Lambda functions with AWS CloudFormation.
  • C. Create two AWS CodePipeline configurations for test and production environments. Configure the production pipeline to have a manual approval step. Create one CodeCommit repository with a branch for each environment. Set up each CodePipeline to retrieve the source code from the appropriate branch in the repository. Set up the deployment step to deploy the Lambda functions with AWS CloudFormation.
  • D. Configure a new AWS CodePipeline service. Create a CodeCommit repository for each environment. Set up CodePipeline to retrieve the source code from the appropriate repository. Set up a deployment step to deploy the Lambda functions with AWS CloudFormation.

Answer: B


NEW QUESTION # 195
You work for an accounting firm and need to store important financial data for clients. Initial frequent access
to data is required, but after a period of 2 months, the data can be archived and brought back only in the case
of an audit. What is the most cost-effective way to do this?

  • A. Uselifecycle management to move data from S3 to Glacier
  • B. Uselifecycle management to store all data in Glacier
  • C. Storeall data in a private S3 bucket
  • D. Storeall data in a Glacier

Answer: A

Explanation:
Explanation
The AWS Documentation mentions the following
Lifecycle configuration enables you to specify the lifecycle management of objects in a bucket. The
configuration is a set of one or more rules, where each rule
defines an action for Amazon S3 to apply to a group of objects. These actions can be classified as follows:
Transition actions - In which you define when objects transition to another storage class. For example, you
may choose to transition objects to the STANDARDJ A (IA, for infrequent access) storage class 30 days after
creation, or archive objects to the GLACIER storage class one year after creation.
Cxpiration actions - In which you specify when the objects expire. Then Amazon S3 deletes the expired
objects on your behalf. For more information on S3 Lifecycle policies, please visit the below URL:
* http://docs.aws.a
mazon.com/AmazonS3/latest/dev/object-lifecycle-mgmt.htm I


NEW QUESTION # 196
You have a requirement to host a cluster of NoSQL databases. There is an expectation that there will be a lot of I/O on these databases. Which EBS volume type is best for high performance NoSQL cluster deployments?

  • A. gp2
  • B. io1
  • C. standard
  • D. gp1

Answer: B

Explanation:
Explanation
Provisioned IOPS SSD should be used for critical business applications that require sustained IOPS performance, or more than 10,000 IOPS or 160 MiB/s of throughput per volume This is ideal for Large database workloads, such as:
* MongoDB
* Cassandra
* MicrosoftSQL Server
* MySQL
* PostgreSQL
* Oracle
For more information on the various CBS Volume Types, please refer to the below link:
* http://docs.aws.amazon.com/AWSCC2/latest/UserGuide/CBSVolumeTvpes.html


NEW QUESTION # 197
......

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