Amazon CLF-C02 Online Practice Questions and Exam Preparation

Amazon CLF-C02 Online Questions & Answers

• Question 531:

  A retail company is building a new mobile app. The company is evaluating whether to build the app at an on-premises data center or in the AWS Cloud.

  Which of following is the responsibility model?

  A. Amazon FSx for Windows File Server
  B. Amazon Workspaces virtual Windows desktop
  C. AWS Directory Service for Microsoft Active Directory
  D. Amazon RDS for Microsoft SQL Server
  C. AWS Directory Service for Microsoft Active Directory

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  Explanation

  AWS Directory Service for Microsoft Active Directory is the AWS service that provides a managed Microsoft Active Directory in the AWS Cloud. It enables the user to use their existing Active Directory users, groups, and policies to access AWS resources, such as Amazon EC2 instances, Amazon S3 buckets, and AWS Single Sign-On. It also integrates with other Microsoft applications and services, such as Microsoft SQL Server, Microsoft Office 365, and Microsoft SharePoint

• Question 532:

  How does AWS Cloud computing help businesses reduce costs? (Choose two.)

  A. AWS charges the same prices for services in every AWS Region.
  B. AWS enables capacity to be adjusted on demand.
  C. AWS offers discounts for Amazon EC2 instances that remain idle for more than 1 week.
  D. AWS does not charge for data sent from the AWS Cloud to the internet.
  E. AWS eliminates many of the costs of building and maintaining on-premises data centers.
  B. AWS enables capacity to be adjusted on demand.
  E. AWS eliminates many of the costs of building and maintaining on-premises data centers.

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  Explanation

• Question 533:

  A user has a stateful workload that will run on Amazon EC2 for the next 3 years.

  What is the MOST cost-effective pricing model for this workload?

  A. On-Demand Instances
  B. Reserved Instances
  C. Dedicated Instances
  D. Spot Instances
  B. Reserved Instances

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  Explanation

  Reserved Instances are a pricing model that offers significant discounts on Amazon EC2 usage compared to On-Demand Instances. Reserved Instances are suitable for stateful workloads that have predictable and consistent usage patterns

  for a long-term period. By committing to a one-year or three-year term, customers can reduce their total cost of ownership and optimize their cloud spend. Reserved Instances also provide capacity reservation, ensuring that customers have

  access to the EC2 instances they need when they need them.

  References: AWS Pricing Calculator, Amazon EC2 Pricing, [AWS Cloud Practitioner Essentials: Module 3 - Compute in the Cloud]

• Question 534:

  A company plans to host its data warehouse application on AWS. The company has a machine learning (ML) model and wants to use that model within its data warehouse for data forecasting.

  A. Amazon DynamoDB
  B. Amazon Redshift ML
  C. Amazon Aurora ML
  D. Amazon MemoryDB
  B. Amazon Redshift ML

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  Explanation

• Question 535:

  Which AWS service is always free of charge for users?

  A. Amazon S3
  B. Amazon Aurora
  C. Amazon EC2
  D. AWS Identity and Access Management (IAM)
  D. AWS Identity and Access Management (IAM)

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  Explanation

  AWS Identity and Access Management (IAM) is a service that allows users to manage access to AWS resources and services. It enables users to create and manage users, groups, roles, and policies that control who can do what in AWS. IAM is always free of charge for users, as there is no additional cost for using IAM with any AWS service1. Amazon S3 is a storage service that provides scalable, durable, and secure object storage. Amazon S3 has a free tier that offers 5 GB of storage, 20,000 GET requests, and 2,000 PUT requests per month for one year. However, users are charged for any additional usage beyond the free tier limits2. Amazon Aurora is a relational database service that is compatible with MySQL and PostgreSQL. Amazon Aurora has a free tier that offers 750 hours of Aurora Single-AZ db.t2.small database usage and 20 GB of storage per month for one year. However, users are charged for any additional usage beyond the free tier limits3. Amazon EC2 is a compute service that provides resizable virtual servers. Amazon EC2 has a free tier that offers 750 hours of Linux and Windows t2.micro instances per month for one year. However, users are charged for any additional usage beyond the free tier limits4.

• Question 536:

  A company will run a predictable compute workload on Amazon EC2 instances for the next 3 years. The workload is critical for the company. The company wants to optimize costs to run the workload. Which solution will meet these requirements?

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

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  Explanation

  Savings Plans offer cost savings for predictable, steady workloads over a one or three-year term, with flexibility in instance family and size, making them suitable for critical workloads on EC2 instances that will run for a long term like three years. Spot Instances are more cost-effective but not suitable for critical, predictable workloads due to potential interruptions. Dedicated Hosts and On-Demand Instances would be more costly.

• Question 537:

  Which AWS service can provide a dedicated network connection with consistent low latency from on premises to the AWS Cloud?

  A. Amazon VPC
  B. Amazon Kinesis Data Streams
  C. AWS Direct Connect
  D. Amazon OpenSearch Service
  C. AWS Direct Connect

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  Explanation

  AWS Direct Connect is a service that provides a dedicated network connection from on premises to the AWS Cloud. It can reduce network costs, increase bandwidth throughput, and provide a more consistent network experience than internet- based connections. It can also provide low latency for applications that require real-time data transfer4. Amazon VPC is a service that provides a logically isolated section of the AWS Cloud where users can launch AWS resources in a virtual network that they define. Amazon Kinesis Data Streams is a service that provides a scalable and durable stream of data records for real-time data processing. Amazon OpenSearch Service is a service that provides a fully managed, scalable, and secure search and analytics solution that is compatible with Elasticsearch.

• Question 538:

  According to the AWS shared responsibility model, which task is the customer's responsibility?

  A. Maintaining the infrastructure needed to run AWS Lambda
  B. Updating the operating system of Amazon DynamoDB instances
  C. Maintaining Amazon S3 infrastructure
  D. Updating the guest operating system on Amazon EC2 instances
  D. Updating the guest operating system on Amazon EC2 instances

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  Explanation

  The AWS shared responsibility model describes the division of responsibilities between AWS and the customer for security and compliance. AWS is responsible for the security of the cloud, which includes the hardware, software, networking, and facilities that run AWS services. The customer is responsible for security in the cloud, which includes the customer data, applications, operating systems, and network and firewall configurations. Therefore, updating the guest operating system on Amazon EC2 instances is the customer's responsibility.

• Question 539:

  A company wants to develop an accessibility application that will convert text into audible speech. Which AWS service will meet this requirement?

  A. Amazon MQ
  B. Amazon Polly
  C. Amazon Neptune
  D. Amazon Timestream
  B. Amazon Polly

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  Explanation

• Question 540:

  Which AWS Well-Architected Framework concept represents a system's ability to remain functional when the system encounters operational problems?

  A. Consistency
  B. Elasticity
  C. Durability
  D. Latency
  B. Elasticity

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  Explanation

  The AWS Well-Architected Framework is a set of best practices and guidelines for designing and operating systems in the cloud. The framework consists of five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization. The concept of elasticity represents a system's ability to adapt to changes in demand by scaling resources up or down automatically. Therefore, the correct answer is

  B. You can learn more about the AWS Well-Architected Framework and its pillars from this page.