Amazon CLF-C01 Online Practice Questions and Exam Preparation

Amazon CLF-C01 Online Questions & Answers

• Question 201:

  Which of the AWS global infrastructure is used to cache copies of content for faster delivery to users across the globe?

  A. AWS Regions
  B. Availability Zones
  C. Edge locations
  D. Data centers
  C. Edge locations

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  Explanation/Reference:

  When your web traffic is geo-dispersed, it's not always feasible and certainly not cost effective to replicate your entire infrastructure across the globe. A CDN provides you the ability to utilize its global network of edge locations to deliver a cached copy of web content such as videos, webpages, images and so on to your customers. To reduce response time, the CDN utilizes the nearest edge location to the customer or originating request location in order to reduce the response time. Throughput is dramatically increased given that the web assets are delivered from cache. For dynamic data, many CDNs can be configured to retrieve data from the origin servers.

  Reference: https://aws.amazon.com/caching/

• Question 202:

  A company has two AWS accounts in an organization in AWS Organizations for consolidated billing. All of the company's AWS resources are hosted in one AWS Region.

  Account A has purchased five Amazon EC2 Standard Reserved Instances (RIs) and has four EC2 instances running. Account B has not purchased any RIs and also has four EC2 instances running.

  Which statement is true regarding pricing for these eight instances?

  A. The eight instances will be charged as regular instances.
  B. Four instances will be charged as RIs, and four will be charged as regular instances.
  C. Five instances will be charged as RIs, and three will be charged as regular instances.
  D. The eight instances will be charged as RIs.
  C. Five instances will be charged as RIs, and three will be charged as regular instances.

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  Explanation/Reference:

  Answer C https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/consolidatedbilling-other.html "For an Amazon EC2 Reserved Instances example, suppose that Bob and Susan each have an account in an organization. Susan has five Reserved Instances of the same type, and Bob has none. During one particular hour, Susan uses three instances and Bob uses six, for a total of nine instances on the organization's consolidated bill. AWS bills five instances as Reserved Instances, and the remaining four instances as regular instances."

• Question 203:

  On demand reserved and spot instances belong to which principle of cloud architecture design?

  A. Performance
  B. Removing single points off failure
  C. Loose coupling
  D. Optimizing for cost
  D. Optimizing for cost

• Question 204:

  A company is releasing a business-critical application Before the release the company needs strategic planning assistance from AWS. During the release, it needs infrastructure event management and real-time Suppor. How can these requirements be met?

  A. Access AWS Trusted Advisor
  B. Contact the AWS Partner Network (APN).
  C. Sign up for AWS Enterprise Support
  D. Contact AWS Professional Services
  C. Sign up for AWS Enterprise Support

• Question 205:

  Which scenarios represent the concept of elasticity on AWS? (Choose two.)

  A. Scaling the number of Amazon EC2 instances based on traffic.
  B. Resizing Amazon RDS instances as business needs change.
  C. Automatically directing traffic to less-utilized Amazon EC2 instances.
  D. Using AWS compliance documents to accelerate the compliance process.
  E. Having the ability to create and govern environments using code.
  A. Scaling the number of Amazon EC2 instances based on traffic.
  B. Resizing Amazon RDS instances as business needs change.

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  Explanation/Reference:

  Reference: https://wa.aws.amazon.com/wat.concept.elasticity.en.html

• Question 206:

  A company has a web application that runs on Amazon EC2 instances with a custom Amazon Machine Image (AMI) The company uses AWS CloudFormation to provision the application. The application runs in the us-east-1 Region, and the

  company needs to deploy the application to the us-west-1 Region.

  An attempt to create the AWS CloudFormation stack in us-west-1 fails An error message states that the AMI ID does not exist A developer must resolve this error with a solution that uses the least amount of operational overhead.

  Which solution meets these requirements?

  A. Change the AWS CloudFormation templates for us-east-1 and us-west-1 to use an AWS AMI Relaunch the stack for both Regions
  B. Copy the custom AMI from us-east-1 to us-west-1 Update the AWS CloudFormation template for us- west-1 to refer to AMI ID for the copied AMI. Relaunch the stack.
  C. Build the custom AMI in us-west-1 Create a new AWS CloudFormation template to launch the stack in us-west-1 with the new AMI ID
  D. Manually deploy the application outside AWS CloudFormation in us-west-1
  B. Copy the custom AMI from us-east-1 to us-west-1 Update the AWS CloudFormation template for us- west-1 to refer to AMI ID for the copied AMI. Relaunch the stack.

• Question 207:

  A company needs to identify its underutilized Amazon Elastic Block Store (Amazon EBS) volumes. Which AWS service should the company use to meet this requirement?

  A. Amazon Inspector
  B. AWS Trusted Advisor
  C. AWS config
  D. AWS CloudTrail
  B. AWS Trusted Advisor

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  Explanation/Reference:

  The AWS service that can be used to identify underutilized Amazon Elastic Block Store (Amazon EBS) volumes is AWS Trusted Advisor. AWS Trusted Advisor provides various checks to help optimize AWS resources, including EBS volumes. The EBS volumes check provides recommendations for optimizing Amazon EBS volumes, including identifying underutilized volumes.

• Question 208:

  Which AWS service is always available free of charge to users?

  A. Amazon Athena
  B. AWS Identity and Access Management (IAM)
  C. AWS Secrets Manager
  D. Amazon ElastiCache
  B. AWS Identity and Access Management (IAM)

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  Explanation/Reference:

  (B) AWS Identity and Access Management (IAM). IAM is always available free of charge to AWS users and enables you to manage access to AWS services and resources securely. You can use IAM to create and manage AWS users and groups, assign permissions to users and groups to access AWS resources, and configure multi-factor authentication (MFA) for added security.

• Question 209:

  Which AWS service provides a secure, fast, and cost-effective way to migrate or transport exabyte-scale datasets into AWS?

  A. AWS Batch
  B. AWS Snowball
  C. AWS Migration Hub
  D. AWS Snowmobile
  D. AWS Snowmobile

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  Explanation/Reference:

  AWS Snowmobile is an exabyte-scale data transfer service that can move extremely large amounts of data to AWS in a fast, secure, and cost-effective manner. You can transfer up to 100PB per Snowmobile, a 45-foot long ruggedized shipping container, pulled by a semi-trailer truck. Snowmobile makes it easy to move massive volumes of data to the cloud, including video libraries, image repositories, or even a complete data center migration. All data is encrypted with 256bit encryption and you can manage your encryption keys with AWS Key Management Service (AWS KMS). Snowmobile includes GPS tracking, alarm monitoring, 24/7 video surveillance and an optional escort security vehicle while in transit.

  Reference: https://aws.amazon.com/about-aws/whats-new/2016/11/move-exabyte-scale-data-sets-with-aws-snowmobile/

• Question 210:

  Which AWS service is suited for use cases that require data backup and restore features, include data lakes, and need an archiving system?

  A. Amazon Elastic File System (Amazon EFS)
  B. Amazon FSx for Lustre
  C. Amazon Elastic Block Store (Amazon EBS)
  D. Amazon S3
  D. Amazon S3