Practice Free CLF-C02 Exam Online Questions
Question #31
Which AWS service or tool provides a visualization of historical AWS spending patterns and projections of future AWS costs?
- A . AWS Cos! and Usage Report
- B . AWS Budgets
- C . Cost Explorer
- D . Amazon CloudWatch
Correct Answer: C
C
Explanation:
AWS Cost Explorer provides a visualization of historical AWS spending patterns and allows users to project future costs based on past usage. It offers advanced filtering and grouping features, enabling users to analyze costs and usage at a granular level. The AWS Cost and Usage Report provides detailed AWS cost and usage data but does not offer visualization or future cost projections. AWS Budgets is used for setting custom cost and usage budgets and receiving alerts. Amazon CloudWatch is for monitoring AWS resources and applications, not for cost management.
C
Explanation:
AWS Cost Explorer provides a visualization of historical AWS spending patterns and allows users to project future costs based on past usage. It offers advanced filtering and grouping features, enabling users to analyze costs and usage at a granular level. The AWS Cost and Usage Report provides detailed AWS cost and usage data but does not offer visualization or future cost projections. AWS Budgets is used for setting custom cost and usage budgets and receiving alerts. Amazon CloudWatch is for monitoring AWS resources and applications, not for cost management.
Question #32
Which option is an advantage of AWS Cloud computing that minimizes variable costs?
- A . High availability
- B . Economies of scale
- C . Global reach
- D . Agility
Correct Answer: B
B
Explanation:
One of the advantages of AWS Cloud computing is that it minimizes variable costs by leveraging economies of scale. This means that AWS can achieve lower costs per unit of computing resources by spreading the fixed costs of building and maintaining data centers over a large number of customers. As a result, AWS can offer lower and more predictable prices to its customers, who only pay for the resources they consume. Therefore, the correct answer is B. You can learn more about AWS pricing and economies of scale
B
Explanation:
One of the advantages of AWS Cloud computing is that it minimizes variable costs by leveraging economies of scale. This means that AWS can achieve lower costs per unit of computing resources by spreading the fixed costs of building and maintaining data centers over a large number of customers. As a result, AWS can offer lower and more predictable prices to its customers, who only pay for the resources they consume. Therefore, the correct answer is B. You can learn more about AWS pricing and economies of scale
Question #33
Which AWS solution provides the ability for a company to run AWS services in the company’s on-premises data center?
- A . AWS Direct Connect
- B . AWS Outposts
- C . AWS Systems Manager hybrid activations
- D . AWS Storage Gateway
Correct Answer: B
B
Explanation:
AWS Outposts is a fully managed service that extends AWS infrastructure, AWS services, APIs, and tools to virtually any datacenter, co-location space, or on-premises facility for a truly consistent hybrid experience. AWS Outposts enables you to run AWS services in your on-premises data center 1.
B
Explanation:
AWS Outposts is a fully managed service that extends AWS infrastructure, AWS services, APIs, and tools to virtually any datacenter, co-location space, or on-premises facility for a truly consistent hybrid experience. AWS Outposts enables you to run AWS services in your on-premises data center 1.
Question #34
A company wants to migrate critical on-premises production systems to Amazon EC2 instances. The production instances will be used for at least 3 years. The company wants a pricing option that will minimize cost.
Which solution will meet these requirements?
- A . On-Demand Instances
- B . Reserved Instances
- C . Spot Instances
- D . AWS Free Tier
Correct Answer: B
B
Explanation:
Reserved Instances (RIs) offer a significant discount (up to 75%) compared to On-Demand pricing in exchange for committing to use AWS for a period of 1 or 3 years. This pricing model is ideal for applications with predictable usage patterns or long-term commitments, such as critical production systems that will be running for at least 3 years.
B
Explanation:
Reserved Instances (RIs) offer a significant discount (up to 75%) compared to On-Demand pricing in exchange for committing to use AWS for a period of 1 or 3 years. This pricing model is ideal for applications with predictable usage patterns or long-term commitments, such as critical production systems that will be running for at least 3 years.
Question #35
Which AWS service gives users the ability to discover and protect sensitive data that is stored in Amazon S3 buckets?
- A . Amazon Macie
- B . Amazon Detective
- C . Amazon GuardDuty
- D . AWS I AM Access Analyzer
Correct Answer: A
A
Explanation:
Amazon Macie is a data security and privacy service offered by AWS that uses machine learning and pattern matching to discover the sensitive data stored within Amazon S3. You can define your own custom type of sensitive data category that might be unique to your business or use case. Macie also provides you with dashboards and alerts that give you visibility into how your data is being accessed or moved. Macie helps you protect your data by enabling you to apply data protection techniques such as encryption, deletion, access control, and auditing.
References: Strengthen the security of sensitive data stored in Amazon S3 by using additional AWS services, Security best practices for Amazon S3, Sensitive Data Protection on AWS, Sensitive Data Protection on Amazon Web Services
A
Explanation:
Amazon Macie is a data security and privacy service offered by AWS that uses machine learning and pattern matching to discover the sensitive data stored within Amazon S3. You can define your own custom type of sensitive data category that might be unique to your business or use case. Macie also provides you with dashboards and alerts that give you visibility into how your data is being accessed or moved. Macie helps you protect your data by enabling you to apply data protection techniques such as encryption, deletion, access control, and auditing.
References: Strengthen the security of sensitive data stored in Amazon S3 by using additional AWS services, Security best practices for Amazon S3, Sensitive Data Protection on AWS, Sensitive Data Protection on Amazon Web Services
Question #36
Which AWS Well-Architected Framework pillar focuses on structured and streamlined allocation of computing resources?
- A . Reliability
- B . Operational excellence
- C . Performance efficiency
- D . Sustainability
Correct Answer: C
C
Explanation:
Understanding Performance Efficiency: This pillar of the AWS Well-Architected Framework focuses
on using computing resources efficiently to meet system requirements and maintain that efficiency
as demand changes and technologies evolve.
Key Aspects of Performance Efficiency:
Selection: Choose the right resources for the job. This includes using the most appropriate instance types, storage options, and database services.
Review: Regularly review your architecture to take advantage of the latest AWS services and features, and to ensure you’re using the best possible resource for your needs.
Monitoring: Continuously monitor your system performance, gather metrics, and use those metrics to make informed decisions about scaling and performance optimization.
Trade-offs: Understand the trade-offs between various performance-related aspects, such as cost, latency, and durability, and make decisions that align with your business goals .
How to Implement Performance Efficiency:
Use Auto Scaling: Implement Auto Scaling to automatically adjust the number of resources based on the demand.
Choose Appropriate Storage Options: Select the right storage solution (e.g., S3, EBS, or EFS) based on performance and access patterns.
Optimize Networking: Utilize Amazon CloudFront, AWS Global Accelerator, and VPC to optimize your network performance.
Regular Review and Testing: Regularly review your architecture, test performance under various
loads, and adjust configurations as needed.
References:
AWS Well-Architected Framework
Performance Efficiency Pillar
C
Explanation:
Understanding Performance Efficiency: This pillar of the AWS Well-Architected Framework focuses
on using computing resources efficiently to meet system requirements and maintain that efficiency
as demand changes and technologies evolve.
Key Aspects of Performance Efficiency:
Selection: Choose the right resources for the job. This includes using the most appropriate instance types, storage options, and database services.
Review: Regularly review your architecture to take advantage of the latest AWS services and features, and to ensure you’re using the best possible resource for your needs.
Monitoring: Continuously monitor your system performance, gather metrics, and use those metrics to make informed decisions about scaling and performance optimization.
Trade-offs: Understand the trade-offs between various performance-related aspects, such as cost, latency, and durability, and make decisions that align with your business goals .
How to Implement Performance Efficiency:
Use Auto Scaling: Implement Auto Scaling to automatically adjust the number of resources based on the demand.
Choose Appropriate Storage Options: Select the right storage solution (e.g., S3, EBS, or EFS) based on performance and access patterns.
Optimize Networking: Utilize Amazon CloudFront, AWS Global Accelerator, and VPC to optimize your network performance.
Regular Review and Testing: Regularly review your architecture, test performance under various
loads, and adjust configurations as needed.
References:
AWS Well-Architected Framework
Performance Efficiency Pillar
Question #37
Which AWS service or feature is an example of a relational database management system?
- A . Amazon Athena
- B . Amazon Redshift
- C . Amazon S3 Select
- D . Amazon Kinesis Data Streams
Correct Answer: B
B
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 a relational database management system (RDBMS), so it is compatible with other RDBMS applications. You can use standard SQL to query the data.
B
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 a relational database management system (RDBMS), so it is compatible with other RDBMS applications. You can use standard SQL to query the data.
38 1. A company needs to apply security rules to specific Amazon EC2 instances.
Which AWS service or feature provides this functionality?
Question #38
A company is reviewing the design of an application that will be migrated from on premises to a single Amazon EC2 instance.
What should the company do to make the application highly available?
- A . Provision additional EC2 instances in other Availability Zones.
- B . Configure an Application Load Balancer (ALB). Assign the EC2 instance as the ALB’s target.
- C . Use an Amazon Machine Image (AMI) to create the EC2 instance.
- D . Provision the application by using an EC2 Spot Instance.
Correct Answer: A
A
Explanation:
Provisioning additional EC2 instances in other Availability Zones is a way to make the application highly available, as it reduces the impact of failures and increases fault tolerance. Configuring an Application Load Balancer and assigning the EC2 instance as the ALB’s target is a way to distribute traffic among multiple instances, but it does not make the application highly available if there is only one instance. Using an Amazon Machine Image to create the EC2 instance is a way to launch a virtual server with a preconfigured operating system and software, but it does not make the application highly available by itself. Provisioning the application by using an EC2 Spot Instance is a way to use spare EC2 capacity at up to 90% off the On-Demand price, but it does not make the application highly available, as Spot Instances can be interrupted by EC2 with a two-minute notification.
A
Explanation:
Provisioning additional EC2 instances in other Availability Zones is a way to make the application highly available, as it reduces the impact of failures and increases fault tolerance. Configuring an Application Load Balancer and assigning the EC2 instance as the ALB’s target is a way to distribute traffic among multiple instances, but it does not make the application highly available if there is only one instance. Using an Amazon Machine Image to create the EC2 instance is a way to launch a virtual server with a preconfigured operating system and software, but it does not make the application highly available by itself. Provisioning the application by using an EC2 Spot Instance is a way to use spare EC2 capacity at up to 90% off the On-Demand price, but it does not make the application highly available, as Spot Instances can be interrupted by EC2 with a two-minute notification.
Question #39
A company wants to migrate its server-based applications to the AWS Cloud. The company wants to determine the total cost of ownership for its compute resources that will be hosted on the AWS Cloud.
Which combination of AWS services or tools will meet these requirements?
- A . AWS Pricing Calculator
- B . Migration Evaluator
- C . AWS Support Center
- D . AWS Application Discovery Service
- E . AWS Database Migration Service (AWS DMS)
Correct Answer: A, D
A, D
Explanation:
AWS Pricing Calculator and AWS Application Discovery Service are the best combination of AWS services or tools to meet the requirements of determining the total cost of ownership for compute resources that will be hosted on the AWS Cloud. AWS Pricing Calculator is a tool that enables you to estimate the cost of using AWS services based on your usage scenarios and requirements. You can use AWS Pricing Calculator to compare the costs of running your applications on-premises or on AWS, and to optimize your AWS spending. AWS Application Discovery Service is a service that helps you plan your migration to the AWS Cloud by collecting and analyzing information about your on-premises servers, applications, and dependencies. You can use AWS Application Discovery Service to identify the inventory of your on-premises infrastructure, group servers by applications, and estimate the performance and resource utilization of your applications45
A, D
Explanation:
AWS Pricing Calculator and AWS Application Discovery Service are the best combination of AWS services or tools to meet the requirements of determining the total cost of ownership for compute resources that will be hosted on the AWS Cloud. AWS Pricing Calculator is a tool that enables you to estimate the cost of using AWS services based on your usage scenarios and requirements. You can use AWS Pricing Calculator to compare the costs of running your applications on-premises or on AWS, and to optimize your AWS spending. AWS Application Discovery Service is a service that helps you plan your migration to the AWS Cloud by collecting and analyzing information about your on-premises servers, applications, and dependencies. You can use AWS Application Discovery Service to identify the inventory of your on-premises infrastructure, group servers by applications, and estimate the performance and resource utilization of your applications45
Question #40
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
Correct Answer: D
D
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 responsibility2
D
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 responsibility2