Amazon CLF-C01 Online Practice Questions and Exam Preparation

Amazon CLF-C01 Online Questions & Answers

• Question 891:

  What is a characteristic of Convertible Reserved Instances (RIs)?

  A. Users can exchange Convertible RIs for other Convertible RIs from a different instance family.
  B. Users can exchange Convertible RIs for other Convertible RIs in different AWS Regions.
  C. Users can sell and buy Convertible RIs on the AWS Marketplace.
  D. Users can shorten the term of their Convertible RIs by merging them with other Convertible RIs.
  A. Users can exchange Convertible RIs for other Convertible RIs from a different instance family.

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  Explanation/Reference:

  Reference: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ri-convertible-exchange.html

• Question 892:

  A new service using AWS must be highly available. Yet, due to regulatory requirements, all of its Amazon EC2 instances must be located in a single geographic area. According to best practices, to meet these requirements, the EC2 instances must be placed in at least two:

  A. AWS Regions
  B. Availability Zones
  C. subnets
  D. placement groups
  B. Availability Zones

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  Explanation/Reference:

  Reference: https://aws.amazon.com/ec2/faqs/

• Question 893:

  Which storage service can be used as a low-cost option for hosting static websites?

  A. Amazon Glacier
  B. Amazon DynamoDB
  C. Amazon Elastic File System (Amazon EFS)
  D. Amazon Simple Storage Service (Amazon S3)
  D. Amazon Simple Storage Service (Amazon S3)

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  Explanation/Reference:

  Reference: https://aws.amazon.com/getting-started/projects/host-static-website/

• Question 894:

  A user can increase operational efficiency in the AWS Cloud by:

  A. leveraging AWS managed services.
  B. right-sizing AWS infrastructure.
  C. manually creating all necessary resources.
  D. managing their own software licenses.
  A. leveraging AWS managed services.

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  Explanation/Reference:

  Reference: https://www.ibexlabs.com/improve-operational-efficiency-via-digital-transformation-on-aws/

• Question 895:

  A VPC spans across:

  A. AWS Regions.
  B. Availability Zones.
  C. edge locations.
  D. corporate networks.
  B. Availability Zones.

• Question 896:

  A developer has discovered that an application responsible for processing messages in an Amazon SQS queue is routinely falling behind The application is capable of processing multiple messages in one invocation, but is only receiving one message at a time.

  What should the developer do to increase the number of messages the application receives?

  A. Call the ChangeMessageVisibility API for the queue and set MaxNumberOfMessages to a value greater than the default of
  B. Call the AddPormission API to set MaxNumborOfMessages for the ReceiveMessage action to a value greater than the default of 1
  C. Call the ReceiveMessage API to set MaxNumberOfM ess ages to a value greater than the default of 1.
  D. Call the SetQueue Attributes API for the queue and set MaxNumberOfMessages to a value greater than the default of 1
  D. Call the SetQueue Attributes API for the queue and set MaxNumberOfMessages to a value greater than the default of 1

• Question 897:

  Using AWS Identity and Access Management (IAM) to grant access only to the resources needed to perform a task is a concept known as:

  A. restricted access.
  B. as-needed access.
  C. least privilege access.
  D. token access.
  C. least privilege access.

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  Explanation/Reference:

  When you create IAM policies, follow the standard security advice of granting least privilege, or granting only the permissions required to perform a task. Determine what users (and roles) need to do and then craft policies that allow them to perform only those tasks. Reference: https://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html

• Question 898:

  A company is starting to build its infrastructure in the AWS Cloud. The company wants access to technical support during business hours. The company also wants general architectural guidance as teams build and test new applications. Which AWS Support plan will meet these requirements at the LOWEST cost?

  A. AWS Basic Support
  B. AWS Developer Support
  C. AWS Business Support
  D. AWS Enterprise Support
  B. AWS Developer Support

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  Explanation/Reference:

  We recommend AWS Developer Support if you are testing or doing early development on AWS and want the ability to get technical support during business hours as well as general architectural guidance as you build and test. In addition to enhanced technical support and architectural guidance, Developer Support provides access to documentation and forums, AWS Trusted Advisor, and AWS Personal Health Dashboard.

• Question 899:

  A company runs a web application on Amazon EC2 instances. The application must run constantly and is expected to run indefinitely without interruption.

  Which EC2 instance purchasing options will meet these requirements MOST cost- effectively? (Select TWO.)

  A. On-Demand Instances
  B. Spot Instances.
  C. Reserved Instances
  D. Savings Plans
  E. Dedicated Hosts
  C. Reserved Instances
  D. Savings Plans

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  Explanation/Reference:

  Amazon EC2 provides the following purchasing options to enable you to optimize your costs based on your needs:

  *On-Demand Instances-Pay, by the second, for the instances that you launch.

  *Savings Plans-Reduce your Amazon EC2 costs by making a commitment to a consistent amount of usage, in USD per hour, for a term of 1 or 3 years. *Reserved Instances-Reduce your Amazon EC2 costs by making a commitment to a

  consistent instance configuration, including instance type and Region, for a term of 1 or 3 years.

  *Spot Instances-Request unused EC2 instances, which can reduce your Amazon EC2 costs significantly.

  *Dedicated Hosts-Pay for a physical host that is fully dedicated to running your instances, and bring your existing per-socket, per-core, or per-VM software licenses to reduce costs.

  *Dedicated Instances-Pay, by the hour, for instances that run on single-tenant hardware.

  *Capacity Reservations-Reserve capacity for your EC2 instances in a specific Availability Zone for any duration.

  If you require a capacity reservation, purchase Reserved Instances or Capacity Reservations for a specific Availability Zone. Spot Instances are a cost-effective choice if you can be flexible about when your applications run and if they can be

  interrupted. Dedicated Hosts or Dedicated Instances can help you address compliance requirements and reduce costs by using your existing server-bound software licenses.

• Question 900:

  Which of the following are components of Amazon VPC? (Choose two.)

  A. Objects
  B. Subnets
  C. Buckets
  D. Internet gateways
  E. Access key
  B. Subnets
  D. Internet gateways

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  Explanation/Reference:

  Reference: https://subscription.packtpub.com/book/virtualization_and_cloud/9781788293723/3/ch03lvl1sec26/vpc-components