Amazon CLF-C02 Online Practice Questions and Exam Preparation

Amazon CLF-C02 Online Questions & Answers

• Question 801:

  A company is running multiple workloads in the AWS Cloud and recently began investigating ways to reduce costs. The company is already running fault-tolerant workloads on Amazon EC2 that perform periodic checkpoints in case of an outage.

  Which AWS service or pricing model can provide the GREATEST cost savings?

  A. Capacity Reservations
  B. Amazon Lightsail
  C. Spot Instances
  D. Dedicated Hosts
  C. Spot Instances

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  Explanation

• Question 802:

  Which guidelines are key AWS architectural design principles? (Select TWO.)

  A. Design for fixed resources.
  B. Build scalable architectures.
  C. Use tightly coupled components.
  D. Use managed services when possible.
  E. Design for human interaction.
  B. Build scalable architectures.
  D. Use managed services when possible.

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  Explanation

• Question 803:

  A company is designing workloads in the AWS Cloud. The company wants the workloads to perform their intended function correctly and consistently throughout their lifecycle.

  Which pillar of the AWS Well-Architected Framework does this goal represent?

  A. Operational excellence
  B. Security
  C. Reliability
  D. Performance efficiency
  C. Reliability

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  Explanation

• Question 804:

  How can an AWS user conduct security assessments of Amazon EC2 instances, NAT gateways, and Elastic Load Balancers in a way that is approved by AWS?

  A. Flood a target with requests.
  B. Use Amazon Inspector.
  C. Perform penetration testing.
  D. Use the AWS Service Health Dashboard.
  B. Use Amazon Inspector.

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  Explanation

  Amazon Inspector is an automated security assessment service that helps improve the security and compliance of applications deployed on AWS. Amazon Inspector automatically assesses applications for exposure, vulnerabilities, and deviations from best practices. After performing an assessment, Amazon Inspector produces a detailed list of security findings prioritized by level of severity2.

• Question 805:

  Which AWS service provides on-demand access to AWS security and compliance reports for audit purposes?

  A. Amazon Inspector
  B. Amazon GuardDuty
  C. AWS Artifact
  D. Amazon Detective
  C. AWS Artifact

• Question 806:

  A company is running a monolithic on-premises application that does not scale and is difficult to maintain. The company has a plan to migrate the application to AWS and divide the application into microservices.

  Which best practice of the AWS Well-Architected Framework is the company following with this plan?

  A. Integrate functional testing as part of AWS deployment.
  B. Use automation to deploy changes.
  C. Deploy the application to multiple locations.
  D. Implement loosely coupled dependencies.
  D. Implement loosely coupled dependencies.

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  Explanation

  The company is following the best practice of implementing loosely coupled dependencies by migrating the application to AWS and dividing the application into microservices. Loosely coupled dependencies are a design principle of the AWS Well- Architected Framework that helps to reduce the interdependencies between components and improve the scalability, reliability, and performance of the system. By breaking down the monolithic application into smaller, independent, and modular services, the company can reduce the complexity and maintenance costs, increase the agility and flexibility, and enable faster and more frequent deployments. AWS CloudFormation is an AWS service that provides the ability to manage infrastructure as code. Infrastructure as code is a process of defining and provisioning AWS resources using code or templates, rather than manual actions or scripts. AWS CloudFormation allows users to create and update stacks of AWS resources based on predefined templates that describe the desired state and configuration of the resources. AWS CloudFormation automates and simplifies the deployment and management of AWS resources, and ensures consistency and repeatability across different environments and regions. AWS CloudFormation also supports rollback, change sets, drift detection, and nested stacks features that help users to monitor and control the changes to their infrastructure.

• Question 807:

  Which AWS service is a key-value database that provides sub-millisecond latency on a large scale?

  A. Amazon DynamoDB
  B. Amazon Aurora
  C. Amazon DocumentDB (with MongoDB compatibility)
  D. Amazon Neptune
  A. Amazon DynamoDB

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  Explanation

  The correct answer is A because Amazon DynamoDB is a key-value database that provides sub-millisecond latency on a large scale. Amazon DynamoDB is a fully managed, serverless, and scalable NoSQL database service that supports both key- value and document data models. The other options are incorrect because they are not key-value databases. Amazon Aurora is a relational database that is compatible with MySQL and PostgreSQL. Amazon DocumentDB (with MongoDB compatibility) is a document database that is compatible with MongoDB. Amazon Neptune is a graph database that supports property graph and RDF models.

  Amazon DynamoDB FAQs

• Question 808:

  A company has multiple AWS accounts that include compute workloads that cannot be interrupted. The company wants to obtain billing discounts that are based on the company's use of AWS services.

  Which AWS feature or purchasing option will meet these requirements?

  A. Resource tagging
  B. Consolidated billing
  C. Pay-as-you-go pricing
  D. Spot Instances
  B. Consolidated billing

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  Explanation

  Consolidated billing is an AWS feature that allows users to combine the usage and costs of multiple AWS accounts into a single bill. This enables users to obtain billing discounts that are based on the company's use of AWS services, such as volume pricing tiers, Reserved Instance discounts, and Savings Plans discounts5. Resource tagging is an AWS feature that allows users to assign metadata to AWS resources, such as EC2 instances, S3 buckets, and Lambda functions. This enables users to organize, track, and manage their AWS resources, such as filtering, grouping, and reporting. Pay-as-you- go pricing is an AWS pricing model that allows users to pay only for the resources and services they use, without any upfront or long-term commitments. This enables users to lower their costs by scaling up or down as needed, and avoiding over-provisioning or under-utilization. Spot Instances are spare EC2 instances that are available at up to 90% discount compared to On-Demand prices. They are suitable for workloads that can tolerate interruptions, such as batch processing, data analysis, and testing. Spot Instances are allocated based on the current supply and demand, and can be reclaimed by AWS with a two-minute notice when the demand exceeds the supply.

• Question 809:

  Which design principle is included in the operational excellence pillar of the AWS Well- Architected Framework?

  A. Create annotated documentation.
  B. Anticipate failure.
  C. Ensure performance efficiency.
  D. Optimize costs.
  A. Create annotated documentation.

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  Explanation

  Create annotated documentation is the design principle that is included in the operational excellence pillar of the AWS Well-Architected Framework. According to the AWS Well-Architected Framework whitepaper, creating annotated documentation means "documenting your workload so that the team understands the architecture, how to operate the workload, and how the workload delivers value to customers."3 Anticipate failure, ensure performance efficiency, and optimize costs are design principles that belong to other pillars of the AWS Well-Architected Framework, such as reliability, performance efficiency, and cost optimization.

• Question 810:

  A company plans to use an Amazon Snowball Edge device la transfer files to the AWS Cloud.

  Which activities related in a Snowball device are available to the company at no cost?

  A. Use of the Snowball Edge appliance for a 10-day period
  B. The transfer of data out of Amazon S3 and 10 the Snowball Edge appliance
  C. The transfer of data from the Snowball Edge appliance into Amazon S3
  D. Daily use of the Snowball Edge appliance after 10 days
  A. Use of the Snowball Edge appliance for a 10-day period

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  Explanation

  Understanding Amazon Snowball Edge: Amazon Snowball Edge is a data migration and edge computing device that helps in transferring large amounts of data to and from AWS.

  No-Cost Activities:

  How to Utilize Snowball Edge:

  References:

  Amazon Snowball Edge Pricing

  Amazon Snowball Edge Documentation