Amazon CLF-C02 Online Practice Questions and Exam Preparation

Amazon CLF-C02 Online Questions & Answers

• Question 1231:

  A user needs to quickly deploy a nonrelational database on AWS. The user does not want to manage the underlying hardware or the database software. Which AWS service can be used to accomplish this?

  A. Amazon RDS
  B. Amazon DynamoDB
  C. Amazon Aurora
  D. Amazon Redshift
  B. Amazon DynamoDB

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  Explanation

• Question 1232:

  An ecommerce company wants to design a highly available application that will be hosted on multiple Amazon EC2 instances.

  How should the company deploy the EC2 instances to meet these requirements?

  A. Across multiple edge locations
  B. Across multiple VPCs
  C. Across multiple Availability Zones
  D. Across multiple AWS accounts
  C. Across multiple Availability Zones

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  Explanation

  The company should deploy the EC2 instances across multiple Availability Zones to design a highly available application. Availability Zones are isolated locations within an AWS Region that are engineered to be fault-tolerant and operate independently of each other. By deploying the EC2 instances across multiple Availability Zones, the company can ensure that their application can withstand the failure of an entire Availability Zone and continue to operate with minimal disruption. Deploying the EC2 instances across multiple edge locations, VPCs, or AWS accounts will not provide the same level of availability and fault tolerance as Availability Zones. Edge locations are part of the Amazon CloudFront service, which is a content delivery network (CDN) that caches and serves web content to users. VPCs are virtual networks that isolate the AWS resources within an AWS Region. AWS accounts are the primary units of ownership and access control for AWS resources12

• Question 1233:

  Elasticity in the AWS Cloud refers to which of the following? (Choose two.)

  A. How quickly an Amazon EC2 instance can be restarted
  B. The ability to rightsize resources as demand shifts
  C. The maximum amount of RAM an Amazon EC2 instance can use
  D. The pay-as-you-go billing model
  E. How easily resources can be procured when they are needed
  B. The ability to rightsize resources as demand shifts
  E. How easily resources can be procured when they are needed

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  Explanation

  Elasticity in the AWS Cloud refers to the ability to acquire resources as you need them and release resources when you no longer need them. In the cloud, you want to do this automatically. This means that you can rightsized resources as demand shifts, and you can easily procure resources when they are needed. Elasticity is not related to how quickly an Amazon EC2 instance can be restarted, the maximum amount of RAM an Amazon EC2 instance can use, or the pay-asyou-go billing model. These are aspects of scalability, performance, and cost, respectively. For more information on elasticity, you can refer to the following sources: Elasticity - AWS Well-Architected Framework Elastic - Reactive Systems on AWS What is the difference between scalability and elasticity?

• Question 1234:

  A company needs access to checks and recommendations that help the company follow AWS best practices for cost optimization, security, fault tolerance, performance, and service quotas.

  Which combination of an AWS service and AWS Support plan on the AWS account will meet these requirements?

  A. AWS Trusted Advisor with AWS Developer Support
  B. AWS Health Dashboard with AWS Enterprise Support
  C. AWS Trusted Advisor with AWS Business Support
  D. AWS Health Dashboard with AWS Enterprise On-Ramp Support
  C. AWS Trusted Advisor with AWS Business Support

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  Explanation

  AWS Trusted Advisor provides checks and recommendations across various categories, including cost optimization, security, and performance. Access to all Trusted Advisor checks is available with AWS Business Support, ensuring the company can follow AWS best practices comprehensively. The Developer Support plan offers limited Trusted Advisor checks, and AWS Health Dashboard provides insights into service health but not specific best practice recommendations.

• Question 1235:

  Which AWS Cloud design principle does a company follow by using AWS CloudTrail?

  A. Recover automatically.
  B. Perform operations as code.
  C. Measure efficiency.
  D. Ensure traceability.
  D. Ensure traceability.

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  Explanation

  The company follows the AWS Cloud design principle of ensuring traceability by using AWS CloudTrail. AWS CloudTrail is a service that records the API calls and events made by or on behalf of the AWS account. The company can use AWS CloudTrail to monitor, audit, and analyze the activity and changes in their AWS resources and applications. AWS CloudTrail helps the company to achieve compliance, security, governance, and operational efficiency. Recovering automatically, performing operations as code, and measuring efficiency are other AWS Cloud design principles, but they are not directly related to using AWS CloudTrail. Recovering automatically means that the company can design their cloud workloads to handle failures gracefully and resume normal operations without manual intervention. Performing operations as code means that the company can automate the creation, configuration, and management of their cloud resources using scripts or templates. Measuring efficiency means that the company can monitor and optimize the performance and utilization of their cloud resources and applications34

• Question 1236:

  Which option is a responsibility of AWS under the AWS shared responsibility model?

  A. Application data security
  B. Patch management for applications that run on Amazon EC2 instances
  C. Patch management of the underlying infrastructure for managed services
  D. Application identity and access management
  C. Patch management of the underlying infrastructure for managed services

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  Explanation

• Question 1237:

  Which of the following are advantages of moving to the AWS Cloud? (Select TWO.)

  A. Users can implement all AWS services in seconds.
  B. AWS assumes all responsibility for the security of infrastructure and applications.
  C. Users experience increased speed and agility.
  D. Users benefits from massive economies of scale.
  E. Users can more hardware from their data center to the AWS Cloud.
  C. Users experience increased speed and agility.
  D. Users benefits from massive economies of scale.

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  Explanation

  Moving to the AWS Cloud offers several advantages, including increased speed and agility, which allows users to experiment, innovate, and iterate faster by using the global AWS infrastructure. Additionally, AWS offers massive economies of scale due to its large customer base, leading to lower pay-as-you-go prices. AWS does not assume all responsibilities for the security of infrastructure and applications; it follows a shared responsibility model. Also, not all AWS services can be implemented in seconds, and physical hardware cannot be moved from a user's data center to the AWS Cloud.

• Question 1238:

  Which AWS service is a relational database compatible with MySQL and PostgreSQL?

  A. Amazon Redshift
  B. Amazon DynamoDB
  C. Amazon Aurora
  D. Amazon Neptune
  C. Amazon Aurora

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  Explanation

• Question 1239:

  A company wants a web application to interact with various AWS services. Which AWS service or resource will meet this requirement?

  A. AWS CloudShell
  B. AWS Marketplace
  C. AWS Management Console
  D. AWS CLI
  C. AWS Management Console

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  Explanation

• Question 1240:

  Which of the following is a characteristic of the AWS account root user?

  A. The root user is the only user that can be configured with multi-factor authentication (MFA).
  B. The root user is the only user that can access the AWS Management Console.
  C. The root user is the first sign-in identity that is available when an AWS account is created.
  D. The root user has a password that cannot be changed.
  C. The root user is the first sign-in identity that is available when an AWS account is created.

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  Explanation

  The AWS account root user is the first sign-in identity that is available when an AWS account is created. It has complete access to all AWS services and resources in the account. The root user email address and password are the same credentials that are used to sign in to the AWS Management Console4. The root user should be used only to perform a few account and service management tasks. For day-to-day tasks, it is recommended to use AWS Identity and Access Management (IAM) users or roles instead.