Practice Free CLF-C02 Exam Online Questions
Question #231
A company wants its AWS usage to be more sustainable. The company wants to track, measure,
review, and forecast polluting emissions that result from its AWS applications.
Which AWS service or tool can the company use to meet these requirements?
- A . AWS Health Dashboard
- B . AWS customer carbon footprint tool
- C . AWS Support Center
- D . Amazon QuickSight
Correct Answer: B
B
Explanation:
AWS customer carbon footprint tool is a tool that helps customers measure and manage their carbon emissions from their AWS usage. It provides data on the carbon intensity, energy consumption, and estimated emissions of AWS services across regions and time periods. It also enables customers to review and forecast their emissions, and compare them with industry benchmarks. AWS Health Dashboard is a service that provides personalized information about the health and performance of AWS services and resources. AWS Support Center is a service that provides access to AWS support resources, such as cases, forums, and documentation. Amazon QuickSight is a service that provides business intelligence and analytics for AWS data sources.
B
Explanation:
AWS customer carbon footprint tool is a tool that helps customers measure and manage their carbon emissions from their AWS usage. It provides data on the carbon intensity, energy consumption, and estimated emissions of AWS services across regions and time periods. It also enables customers to review and forecast their emissions, and compare them with industry benchmarks. AWS Health Dashboard is a service that provides personalized information about the health and performance of AWS services and resources. AWS Support Center is a service that provides access to AWS support resources, such as cases, forums, and documentation. Amazon QuickSight is a service that provides business intelligence and analytics for AWS data sources.
Question #232
A company needs to invoke an AWS Step Functions workflow each time an Amazon EC2 instance state changes to RUNNING.
Which AWS service can the company use to meet this requirement?
- A . Amazon SageMaker
- B . Amazon Connect
- C . Amazon EventBridge
- D . AWS Fargate
Correct Answer: C
C
Explanation:
Amazon EventBridge Overview:
EventBridge is a serverless event bus that enables applications to react to changes in AWS resources. It supports routing events such as EC2 state changes to various targets, including AWS Step Functions.
How EventBridge Meets the Requirement:
EventBridge can capture the EC2 instance state change event and trigger the execution of a Step Functions workflow.
The integration is seamless and supports workflows triggered by multiple event sources.
Why Other Options Are Incorrect:
C
Explanation:
Amazon EventBridge Overview:
EventBridge is a serverless event bus that enables applications to react to changes in AWS resources. It supports routing events such as EC2 state changes to various targets, including AWS Step Functions.
How EventBridge Meets the Requirement:
EventBridge can capture the EC2 instance state change event and trigger the execution of a Step Functions workflow.
The integration is seamless and supports workflows triggered by multiple event sources.
Why Other Options Are Incorrect:
Question #233
Which Amazon S3 storage class is MOST cost-effective for unknown access patterns?
- A . S3 Standard
- B . S3 Standard-Infrequent Access (S3 Standard-IA)
- C . S3 One Zone-Infrequent Access (S3 One Zone-IA)
- D . S3 Intelligent-Tiering
Correct Answer: D
D
Explanation:
Understanding S3 Intelligent-Tiering: S3 Intelligent-Tiering is designed to optimize costs by automatically moving data to the most cost-effective access tier based on changing access patterns. It is ideal for data with unknown or unpredictable access patterns.
Why S3 Intelligent-Tiering is Cost-Effective:
Automatic Tiering: Moves data between two access tiers (frequent and infrequent access) based on changing access patterns, optimizing storage costs without performance impact.
No Retrieval Fees: Unlike other storage classes, there are no retrieval fees in Intelligent-Tiering, making it cost-effective for data with unpredictable access patterns.
Monitoring and Automation: Automatically monitors access patterns and transitions data, reducing
the need for manual intervention.
When to Use S3 Intelligent-Tiering:
Unpredictable Access Patterns: Ideal for datasets where the access frequency cannot be determined
or changes frequently.
Cost Optimization: For organizations looking to minimize storage costs without sacrificing performance or requiring manual intervention to move data between tiers:
Amazon S3 Intelligent-Tiering
Amazon S3 Storage Classes
D
Explanation:
Understanding S3 Intelligent-Tiering: S3 Intelligent-Tiering is designed to optimize costs by automatically moving data to the most cost-effective access tier based on changing access patterns. It is ideal for data with unknown or unpredictable access patterns.
Why S3 Intelligent-Tiering is Cost-Effective:
Automatic Tiering: Moves data between two access tiers (frequent and infrequent access) based on changing access patterns, optimizing storage costs without performance impact.
No Retrieval Fees: Unlike other storage classes, there are no retrieval fees in Intelligent-Tiering, making it cost-effective for data with unpredictable access patterns.
Monitoring and Automation: Automatically monitors access patterns and transitions data, reducing
the need for manual intervention.
When to Use S3 Intelligent-Tiering:
Unpredictable Access Patterns: Ideal for datasets where the access frequency cannot be determined
or changes frequently.
Cost Optimization: For organizations looking to minimize storage costs without sacrificing performance or requiring manual intervention to move data between tiers:
Amazon S3 Intelligent-Tiering
Amazon S3 Storage Classes
Question #234
A company wants to migrate its on-premises data warehouse to AWS. The information in the data warehouse is used to populate analytics dashboards.
Which AWS service should the company use for the data warehouse?
- A . Amazon ElastiCache
- B . Amazon Aurora
- C . Amazon RDS
- D . Amazon Redshift
Correct Answer: D
D
Explanation:
The AWS service that the company should use for the data warehouse is Amazon Redshift. Amazon Redshift is a fully managed, petabyte-scale data warehouse service that is optimized for analytical queries. It can integrate with various data sources and business intelligence tools to provide fast and cost-effective insights. Amazon Redshift also offers high availability, scalability, security, and compliance features. [Amazon Redshift Overview]
D
Explanation:
The AWS service that the company should use for the data warehouse is Amazon Redshift. Amazon Redshift is a fully managed, petabyte-scale data warehouse service that is optimized for analytical queries. It can integrate with various data sources and business intelligence tools to provide fast and cost-effective insights. Amazon Redshift also offers high availability, scalability, security, and compliance features. [Amazon Redshift Overview]
Question #235
Which AWS service provides storage that can be mounted across multiple Amazon EC2 instances?
- A . Amazon Workspaces
- B . Amazon Elastic File System (Amazon EFS)
- C . AWS Database Migration Service (AWS DMS)
- D . AWS Snowball Edge
Correct Answer: B
B
Explanation:
Amazon EFS is a fully managed service that provides scalable and elastic file storage for multiple Amazon EC2 instances. Amazon EFS supports the Network File System (NFS) protocol, which allows multiple EC2 instances to access the same file system concurrently. You can learn more about Amazon EFS from this webpage or this digital course.
B
Explanation:
Amazon EFS is a fully managed service that provides scalable and elastic file storage for multiple Amazon EC2 instances. Amazon EFS supports the Network File System (NFS) protocol, which allows multiple EC2 instances to access the same file system concurrently. You can learn more about Amazon EFS from this webpage or this digital course.
Question #236
A company is collecting user behavior patterns to identify how to meet goals for sustainability impact.
Which guidelines are best practices for the company to implement to meet these goals? (Select TWO.)
- A . Scale infrastructure with user load.
- B . Maximize the geographic distance between workloads and user locations.
- C . Eliminate creation and maintenance of unused assets.
- D . Scale resources with excess capacity and remove auto scaling.
- E . Scale infrastructure based on the number of users.
Correct Answer: A,C
A,C
Explanation:
To meet the goals for sustainability impact, the company should follow the best practices of scaling infrastructure with user load and eliminating creation and maintenance of unused assets. Scaling infrastructure with user load means adjusting the capacity of the infrastructure to match the demand of the users, which can reduce the energy consumption and carbon footprint of the system. Eliminating creation and maintenance of unused assets means avoiding the waste of resources and money on assets that are not needed or used, which can also improve the environmental and economic efficiency of the system3.
A,C
Explanation:
To meet the goals for sustainability impact, the company should follow the best practices of scaling infrastructure with user load and eliminating creation and maintenance of unused assets. Scaling infrastructure with user load means adjusting the capacity of the infrastructure to match the demand of the users, which can reduce the energy consumption and carbon footprint of the system. Eliminating creation and maintenance of unused assets means avoiding the waste of resources and money on assets that are not needed or used, which can also improve the environmental and economic efficiency of the system3.
Question #237
A company wants to migrate its applications to the AWS Cloud. The company plans to identify and prioritize any business transformation opportunities and evaluate its AWS Cloud readiness.
Which AWS service or tool should the company use to meet these requirements?
- A . AWS Cloud Adoption Framework (AWS CAF)
- B . AWS Managed Services (AMS)
- C . AWS Well-Architected Framework
- D . AWS Migration Hub
Correct Answer: A
A
Explanation:
AWS Cloud Adoption Framework (AWS CAF) is a service or tool that helps users migrate their applications to the AWS Cloud. It provides guidance and best practices to identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness. It also helps users align their business and technical perspectives, create an actionable roadmap, and measure their progress. AWS Managed Services (AMS) is a service that provides operational services for AWS infrastructure and applications. It helps users reduce their operational overhead and risk, and focuson their core business. It does not help users identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness. AWS Well-Architected Framework is a tool that helps users design and implement secure, high-performing, resilient, and efficient solutions on AWS. It provides a set of questions and best practices across five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization. It does not help users identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness. AWS Migration Hub is a service that provides a single location to track and manage the migration of applications to AWS. It helps users discover their on-premises servers, group them into applications, and choose the right migration tools. It does not help users identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness.
A
Explanation:
AWS Cloud Adoption Framework (AWS CAF) is a service or tool that helps users migrate their applications to the AWS Cloud. It provides guidance and best practices to identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness. It also helps users align their business and technical perspectives, create an actionable roadmap, and measure their progress. AWS Managed Services (AMS) is a service that provides operational services for AWS infrastructure and applications. It helps users reduce their operational overhead and risk, and focuson their core business. It does not help users identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness. AWS Well-Architected Framework is a tool that helps users design and implement secure, high-performing, resilient, and efficient solutions on AWS. It provides a set of questions and best practices across five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization. It does not help users identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness. AWS Migration Hub is a service that provides a single location to track and manage the migration of applications to AWS. It helps users discover their on-premises servers, group them into applications, and choose the right migration tools. It does not help users identify and prioritize any business transformation opportunities and evaluate their AWS Cloud readiness.
Question #238
Which AWS service allows users to model and provision AWS resources using common programming languages?
- A . AWS CloudFormation
- B . AWS Code Pipeline
- C . AWS Cloud Development Kit (AWS CDK)
- D . AWS Systems Manager
Correct Answer: C
Question #239
A company wants an in-memory data store that is compatible with open source in the cloud.
Which AWS service should the company use?
- A . Amazon DynamoDB
- B . Amazon ElastiCache
- C . Amazon Elastic Block Store (Amazon EBS)
- D . Amazon Redshift
Correct Answer: B
B
Explanation:
Amazon ElastiCache is a fully managed in-memory data store service that is compatible with open source engines such as Redis and Memcached1. It provides fast and scalable performance for applications that require high throughput and low latency1. Amazon DynamoDB is a fully managed NoSQL database service that provides consistent and single-digit millisecond latency at any scale2. Amazon EBS is a block storage service that provides persistent and durable storage volumes for Amazon EC2 instances3. Amazon Redshift is a fully managed data warehouse service that allows users to run complex analytic queries using SQL4.
B
Explanation:
Amazon ElastiCache is a fully managed in-memory data store service that is compatible with open source engines such as Redis and Memcached1. It provides fast and scalable performance for applications that require high throughput and low latency1. Amazon DynamoDB is a fully managed NoSQL database service that provides consistent and single-digit millisecond latency at any scale2. Amazon EBS is a block storage service that provides persistent and durable storage volumes for Amazon EC2 instances3. Amazon Redshift is a fully managed data warehouse service that allows users to run complex analytic queries using SQL4.
Question #240
Which AWS service can a company use to perform complex analytical queries?
- A . Amazon RDS
- B . Amazon DynamoDB
- C . Amazon Redshift
- D . Amazon ElastiCache
Correct Answer: C
C
Explanation:
Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud. You can start with just a few hundred gigabytes of data and scale to a petabyte or more. This enables you to use your data to acquire new insights for your business and customers. Amazon Redshift is designed for complex analytical queries that often involve aggregations and joins across very large tables. Amazon Redshift supports standard SQL and integrates with many existing business intelligence tools1.
C
Explanation:
Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud. You can start with just a few hundred gigabytes of data and scale to a petabyte or more. This enables you to use your data to acquire new insights for your business and customers. Amazon Redshift is designed for complex analytical queries that often involve aggregations and joins across very large tables. Amazon Redshift supports standard SQL and integrates with many existing business intelligence tools1.