Practice Free CLF-C02 Exam Online Questions
Question #171
Which AWS services can host PostgreSQL databases? (Select TWO.)
- A . Amazon S3
- B . Amazon Aurora
- C . Amazon EC2
- D . Amazon OpenSearch Service
- E . Amazon Elastic File System (Amazon EFS)
Correct Answer: B,C
B,C
Explanation:
Amazon Aurora (with PostgreSQL compatibility) and Amazon EC2 can both host PostgreSQL databases. Aurora is a managed database service that provides a fully compatible PostgreSQL environment with automated management. EC2 can also host PostgreSQL, but it requires more manual setup and maintenance. Amazon S3 and EFS do not host databases, and Amazon OpenSearch Service is intended for search and analytics, not relational databases.
B,C
Explanation:
Amazon Aurora (with PostgreSQL compatibility) and Amazon EC2 can both host PostgreSQL databases. Aurora is a managed database service that provides a fully compatible PostgreSQL environment with automated management. EC2 can also host PostgreSQL, but it requires more manual setup and maintenance. Amazon S3 and EFS do not host databases, and Amazon OpenSearch Service is intended for search and analytics, not relational databases.
Question #172
A manufacturing company has a critical application that runs at a remote site that has a slow internet connection. The company wants to migrate the workload to AWS. The application is sensitive to latency and interruptions in connectivity. The company wants a solution that can host this application with minimum latency.
Which AWS service or feature should the company use to meet these requirements?
- A . Availability Zones
- B . AWS Local Zones
- C . AWS Wavelength
- D . AWS Outposts
Correct Answer: D
D
Explanation:
AWS Outposts is a service that offers fully managed and configurable compute and storage racks built with AWS-designed hardware that allow you to run your workloads on premises and seamlessly connect to AWS services in the cloud. AWS Outposts is ideal for workloads that require low latency, local data processing, or local data storage. With AWS Outposts, you can use the same AWS APIs, tools, and infrastructure across on premises and the cloud to deliver a truly consistent hybrid experience5. Availability Zones are isolated locations within each AWS Region that are engineered to be fault-tolerant and provide high availability. AWS Local Zones are extensions of AWS Regions that are placed closer to large population, industry, and IT centers where no AWS Region exists today. AWS Wavelength is a service that enables developers to build applications that deliver ultra-low latency to mobile devices and users by deploying AWS compute and storage at the edge of the 5G network. None of these services or features can help you host a critical application with minimum latency at a remote site that has a slow internet connection.
D
Explanation:
AWS Outposts is a service that offers fully managed and configurable compute and storage racks built with AWS-designed hardware that allow you to run your workloads on premises and seamlessly connect to AWS services in the cloud. AWS Outposts is ideal for workloads that require low latency, local data processing, or local data storage. With AWS Outposts, you can use the same AWS APIs, tools, and infrastructure across on premises and the cloud to deliver a truly consistent hybrid experience5. Availability Zones are isolated locations within each AWS Region that are engineered to be fault-tolerant and provide high availability. AWS Local Zones are extensions of AWS Regions that are placed closer to large population, industry, and IT centers where no AWS Region exists today. AWS Wavelength is a service that enables developers to build applications that deliver ultra-low latency to mobile devices and users by deploying AWS compute and storage at the edge of the 5G network. None of these services or features can help you host a critical application with minimum latency at a remote site that has a slow internet connection.
Question #173
A company is migrating to the AWS Cloud and plans to run experimental workloads for 3 to 6 months on AWS.
Which pricing model will meet these requirements?
- A . Use Savings Plans for a 3-year term.
- B . Use Dedicated Hosts.
- C . Buy Reserved Instances.
- D . Use On-Demand Instances.
Correct Answer: D
D
Explanation:
On-Demand Instances are the most flexible and cost-effective pricing model for short-term, experimental, or unpredictable workloads on AWS. On-Demand Instances let you pay only for the resources you use, without any long-term commitments or upfront fees. You can easily start and stop instances as needed, and scale up or down depending on your demand.
Savings Plans, Reserved Instances, and Dedicated Hosts are all pricing models that require a commitment for a certain amount of usage or capacity for a one- or three-year term. These pricing models offer lower prices than On-Demand Instances, but they are not suitable for workloads that only run for 3 to 6 months or have variable usage patterns. Savings Plans and Reserved Instances also offer flexibility to change instance types, sizes, or regions within the same family or pool, while Dedicated Hosts are physical servers that can only run specific instance types.
D
Explanation:
On-Demand Instances are the most flexible and cost-effective pricing model for short-term, experimental, or unpredictable workloads on AWS. On-Demand Instances let you pay only for the resources you use, without any long-term commitments or upfront fees. You can easily start and stop instances as needed, and scale up or down depending on your demand.
Savings Plans, Reserved Instances, and Dedicated Hosts are all pricing models that require a commitment for a certain amount of usage or capacity for a one- or three-year term. These pricing models offer lower prices than On-Demand Instances, but they are not suitable for workloads that only run for 3 to 6 months or have variable usage patterns. Savings Plans and Reserved Instances also offer flexibility to change instance types, sizes, or regions within the same family or pool, while Dedicated Hosts are physical servers that can only run specific instance types.
Question #174
A company needs to store infrequently used data for data archives and long-term backups.
A company needs a history report about how its Amazon EC2 instances were modified last month.
Which AWS service can be used to meet this requirement?
- A . AWS Service Catalog
- B . AWS Config
- C . Amazon CloudWatch
- D . AWS Artifact
Correct Answer: B
B
Explanation:
AWS Config is a service that enables you to assess, audit, and evaluate the configurations of your AWS resources. AWS Config continuously monitors and records your AWS resource configurations and allows you to automate the evaluation of recorded configurations against desired configurations. AWS Config can also track changes to your EC2 instances over time and provide a history report of the modifications. AWS Service Catalog, Amazon CloudWatch, and AWS Artifact are not the best services to meet this requirement. AWS Service Catalog is a service that allows you to create and manage catalogs of IT services that are approved for use on AWS. Amazon CloudWatch is a service that monitors your AWS resources and applications and provides metrics, alarms, dashboards, and logs. AWS Artifact is a service that provides on-demand access to AWS security and compliance reports and online agreements
B
Explanation:
AWS Config is a service that enables you to assess, audit, and evaluate the configurations of your AWS resources. AWS Config continuously monitors and records your AWS resource configurations and allows you to automate the evaluation of recorded configurations against desired configurations. AWS Config can also track changes to your EC2 instances over time and provide a history report of the modifications. AWS Service Catalog, Amazon CloudWatch, and AWS Artifact are not the best services to meet this requirement. AWS Service Catalog is a service that allows you to create and manage catalogs of IT services that are approved for use on AWS. Amazon CloudWatch is a service that monitors your AWS resources and applications and provides metrics, alarms, dashboards, and logs. AWS Artifact is a service that provides on-demand access to AWS security and compliance reports and online agreements
Question #175
A company has an application workload that is stateless by design and can sustain occasional downtime. The application performs massively parallel computations.
Which Amazon EC2 pricing model should the company choose for its application to reduce cost?
- A . On-Demand Instances
- B . Spot Instances
- C . Reserved Instances
- D . Dedicated Instances
Correct Answer: B
B
Explanation:
Amazon EC2 Spot Instances let you take advantage of unused EC2 capacity in the AWS cloud. Spot Instances are available at up to a 90% discount compared to On-Demand prices. You can use Spot Instances for various stateless, fault-tolerant, or flexible applications such as big data, containerized workloads, CI/CD, web servers, high-performance computing (HPC), and other test & development workloads. Spot Instances are well-suited for massively parallel computations, as they can provide large amounts of compute capacity at a low cost, and can be interrupted with a two-minute notice3
B
Explanation:
Amazon EC2 Spot Instances let you take advantage of unused EC2 capacity in the AWS cloud. Spot Instances are available at up to a 90% discount compared to On-Demand prices. You can use Spot Instances for various stateless, fault-tolerant, or flexible applications such as big data, containerized workloads, CI/CD, web servers, high-performance computing (HPC), and other test & development workloads. Spot Instances are well-suited for massively parallel computations, as they can provide large amounts of compute capacity at a low cost, and can be interrupted with a two-minute notice3
Question #176
Which benefit does AWS offer exclusively to users who have an AWS Enterprise Support plan?
- A . Access to a technical project manager
- B . Access to a technical account manager (TAM)
- C . Access to a cloud support engineer
- D . Access to a solutions architectA company wants to automatically set up and govern a multi-account AWS environment.
Correct Answer: B
B
Explanation:
AWS Enterprise Support plan is the highest level of support that AWS offers to its customers. One of the exclusive benefits of this plan is the access to a technical account manager (TAM), who is adedicated point of contact for guidance, advocacy, and support2. A technical project manager, a cloud support engineer, and a solutions architect are not exclusive benefits of the AWS Enterprise Support plan, as they are also available to customers with lower-tier support plans or through other AWS services or programs345.
B
Explanation:
AWS Enterprise Support plan is the highest level of support that AWS offers to its customers. One of the exclusive benefits of this plan is the access to a technical account manager (TAM), who is adedicated point of contact for guidance, advocacy, and support2. A technical project manager, a cloud support engineer, and a solutions architect are not exclusive benefits of the AWS Enterprise Support plan, as they are also available to customers with lower-tier support plans or through other AWS services or programs345.
Question #177
A company plans to migrate to the AWS Cloud. The company wants to use the AWS Cloud Adoption Framework (AWS CAF) to define and track business outcomes as part of its cloud transformation journey.
Which AWS CAF governance perspective capability will meet these requirements?
- A . Benefits management
- B . Risk management
- C . Application portfolio management
- D . Cloud financial management
Correct Answer: A
A
Explanation:
The correct answer is A. Benefits management.
Benefits management is the AWS CAF governance perspective capability that helps you define and track business outcomes as part of your cloud transformation journey. Benefits management helps you align your cloud initiatives with your business objectives, measure the value and impact of your cloud investments, and communicate the benefits of cloud adoption to your stakeholders12.
Risk management is the AWS CAF governance perspective capability that helps you identify and mitigate the potential risks associated with cloud adoption, such as security, compliance, legal, and operational risks12.
Application portfolio management is the AWS CAF governance perspective capability that helps you assess and optimize your existing application portfolio for cloud migration or modernization. Application portfolio management helps you categorize your applications based on their business value and technical fit, prioritize them for cloud adoption, and select the best migration or modernization strategy for each application12.
Cloud financial management is the AWS CAF governance perspective capability that helps you manage and optimize the costs and value of your cloud resources. Cloud financial management helps you plan and budget for cloud adoption, track and allocate cloud costs, implement cost optimization strategies, and report on cloud financial performance12.
Reference: 1: AWS Cloud Adoption Framework: Governance Perspective2: All you need to know about AWS Cloud Adoption Framework ― Governance Perspective
A
Explanation:
The correct answer is A. Benefits management.
Benefits management is the AWS CAF governance perspective capability that helps you define and track business outcomes as part of your cloud transformation journey. Benefits management helps you align your cloud initiatives with your business objectives, measure the value and impact of your cloud investments, and communicate the benefits of cloud adoption to your stakeholders12.
Risk management is the AWS CAF governance perspective capability that helps you identify and mitigate the potential risks associated with cloud adoption, such as security, compliance, legal, and operational risks12.
Application portfolio management is the AWS CAF governance perspective capability that helps you assess and optimize your existing application portfolio for cloud migration or modernization. Application portfolio management helps you categorize your applications based on their business value and technical fit, prioritize them for cloud adoption, and select the best migration or modernization strategy for each application12.
Cloud financial management is the AWS CAF governance perspective capability that helps you manage and optimize the costs and value of your cloud resources. Cloud financial management helps you plan and budget for cloud adoption, track and allocate cloud costs, implement cost optimization strategies, and report on cloud financial performance12.
Reference: 1: AWS Cloud Adoption Framework: Governance Perspective2: All you need to know about AWS Cloud Adoption Framework ― Governance Perspective
Question #178
A company wants to grant users in one AWS account access to resources in another AWS account.
The users do not currently have permission to access the resources.
Which AWS service will meet this requirement?
- A . IAM group
- B . IAM role
- C . IAM tag
- D . IAM Access Analyzer
Correct Answer: B
B
Explanation:
IAM roles are a way to delegate access to resources in different AWS accounts. IAM roles allow users to assume a set of permissions for a limited time without having to create or share long-term credentials. IAM roles can be used to grant cross-account access by creating a trust relationship between the accounts and specifying the permissions that the role can perform. Users can then switch to the role and access the resources in the other account using temporary security credentials provided by the role.
Reference: Cross account resource access in IAM, IAM tutorial: Delegate access across AWS accounts using IAM roles, How to Enable Cross-Account Access to the AWS Management Console
B
Explanation:
IAM roles are a way to delegate access to resources in different AWS accounts. IAM roles allow users to assume a set of permissions for a limited time without having to create or share long-term credentials. IAM roles can be used to grant cross-account access by creating a trust relationship between the accounts and specifying the permissions that the role can perform. Users can then switch to the role and access the resources in the other account using temporary security credentials provided by the role.
Reference: Cross account resource access in IAM, IAM tutorial: Delegate access across AWS accounts using IAM roles, How to Enable Cross-Account Access to the AWS Management Console
Question #179
Which pillar of the AWS Well-Architected Framework focuses on the ability to run workloads effectively, gain insight into operations, and continuously improve supporting processes and procedures?
- A . Cost optimization
- B . Reliability
- C . Operational excellence
- D . Performance efficiency
Correct Answer: C
C
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 operational excellence pillar focuses on the ability to run workloads effectively, gain insight into operations, and continuously improve supporting processes and procedures.
Therefore, the correct answer is C. You can learn more about the AWS Well-Architected Framework and its pillars.
C
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 operational excellence pillar focuses on the ability to run workloads effectively, gain insight into operations, and continuously improve supporting processes and procedures.
Therefore, the correct answer is C. You can learn more about the AWS Well-Architected Framework and its pillars.
Question #180
Which AWS service is designed to help users handle large amounts of data in a data warehouse environment?
- A . Amazon RDS
- B . Amazon DynamoDB
- C . Amazon Redshift
- D . Amazon Aurora
Correct Answer: C
C
Explanation:
Amazon Redshiftis a fully managed data warehouse service that enables users to analyze large amounts of data quickly and cost-effectively. It is designed specifically for online analytical processing (OLAP) and is optimized for complex queries against large datasets. Amazon Redshift uses columnar storage, data compression, and massively parallel processing (MPP) to handle petabyte-scale data warehouse environments.
C
Explanation:
Amazon Redshiftis a fully managed data warehouse service that enables users to analyze large amounts of data quickly and cost-effectively. It is designed specifically for online analytical processing (OLAP) and is optimized for complex queries against large datasets. Amazon Redshift uses columnar storage, data compression, and massively parallel processing (MPP) to handle petabyte-scale data warehouse environments.