Amazon CLF-C02 Online Practice Questions and Exam Preparation

Amazon CLF-C02 Online Questions & Answers

• Question 911:

  What does the concept of agility mean in AWS Cloud computing? (Choose two.)

  A. The speed at which AWS resources are implemented
  B. The speed at which AWS creates new AWS Regions
  C. The ability to experiment quickly
  D. The elimination of wasted capacity
  E. The low cost of entry into cloud computing
  A. The speed at which AWS resources are implemented
  C. The ability to experiment quickly

  ---

  Explanation

  Agility in AWS Cloud computing means the ability to rapidly provision and deprovision AWS resources as needed, and the ability to experiment quickly with new ideas and solutions. Agility helps businesses to respond to changing customer demands, market opportunities, and competitive threats, and to innovate faster and cheaper. Agility also reduces the risk of failure, as businesses can test and validate their assumptions before committing to large-scale deployments. Some of the benefits of agility in AWS Cloud computing are: The speed at which AWS resources are implemented: AWS provides a variety of services and tools that allow you to create, configure, and launch AWS resources in minutes, using the AWS Management Console, the AWS Command Line Interface (AWS CLI), the AWS Software Development Kits (AWS SDKs), or the AWS CloudFormation templates. You can also use the AWS Cloud Development Kit (AWS CDK) to define your AWS resources as code using familiar programming languages, and synthesize them into AWS CloudFormation templates. You can also use the AWS Service Catalog to create and manage standardized portfolios of AWS resources that meet your organizational policies and best practices. AWS also offers on-demand, pay-as-you-go pricing models, so you only pay for the resources you use, and you can scale them up or down as your needs change. The ability to experiment quickly: AWS enables you to experiment quickly with new ideas and solutions, without having to invest in upfront capital or long-term commitments. You can use AWS to create and test multiple prototypes, hypotheses, and minimum viable products (MVPs) in parallel, and measure their performance and feedback. You can also use AWS to leverage existing services and solutions, such as AWS Marketplace, AWS Solutions, and AWS Quick Starts, that can help you accelerate your innovation process. AWS also supports a culture of experimentation and learning, by providing tools and resources for continuous integration and delivery (CI/CD), testing, monitoring, and analytics.

  References: Six advantages of cloud computing - Overview of Amazon Web Services, AWS Cloud Development Kit (AWS CDK), AWS Service Catalog, AWS Pricing, AWS CloudFormation, [Experimentation and Testing - AWS Well

  Architected Framework], [AWS Marketplace], [AWS Solutions], [AWS Quick Starts], [AWS Developer Tools]

• Question 912:

  Which tasks are responsibilities of the customer, according to the AWS shared responsibility model? (Choose two.)

  A. Secure the virilization layer.
  B. Encrypt data and maintain data integrity.
  C. Patch the Amazon RDS operating system.
  D. Maintain identity and access management controls.
  E. Secure Availability Zones.
  B. Encrypt data and maintain data integrity.
  D. Maintain identity and access management controls.

  ---

  Explanation

  Under the AWS Shared Responsibility Model, AWS manages the security of the cloud (such as physical infrastructure and virtualization), while customers are responsible for security in the cloud. This means that customers are responsible

  for:

  Encrypt data and maintain data integrity: Correct. Customers are responsible for securing their data, including encryption and maintaining its integrity.

  Maintain identity and access management controls: Correct. Customers are responsible for managing access to their AWS resources, including creating and managing IAM users, roles, and permissions.

  Secure the virtualization layer: Incorrect. AWS is responsible for securing the underlying virtualization layer.

  Patch the Amazon RDS operating system: Incorrect. AWS handles patching and maintenance of the managed service's underlying infrastructure. Secure Availability Zones: Incorrect. AWS is responsible for securing the physical

  infrastructure, including Availability Zones.

• Question 913:

  A company is building an application that needs to deliver images and videos globally with minimal latency. Which approach can the company use to accomplish this in a cost effective manner?

  A. Deliver the content through Amazon CloudFront.
  B. Store the content on Amazon S3 and enable S3 cross-region replication.
  C. Implement a VPN across multiple AWS Regions.
  D. Deliver the content through AWS PrivateLink.
  A. Deliver the content through Amazon CloudFront.

  ---

  Explanation

  Key: "deliver images and videos globally with minimal latency"

• Question 914:

  Which of the following is an AWS Well-Architected Framework design principle for operational excellence in the AWS Cloud?

  A. Go global in minutes.
  B. Make frequent, small, reversible changes.
  C. Implement a strong foundation of identity and access management
  D. Stop spending money on hardware infrastructure for data center operations.
  B. Make frequent, small, reversible changes.

  ---

  Explanation

  Making frequent, small, reversible changes is one of the design principles for operational excellence in the AWS Cloud, as defined by the AWS Well-Architected Framework. This principle means that you should design your workloads to allow for rapid and safe changes, such as deploying updates, rolling back failures, and experimenting with new features. By making small and reversible changes, you can reduce the risk of errors, minimize the impact of failures, and increase the speed of recovery.

• Question 915:

  Which feature of Amazon RDS provides the ability to automatically create a primary database instance and to synchronously replicate data to an instance in another Availability Zone?

  A. Read replicas
  B. Blue/green deployment
  C. Multi-AZ deployment
  D. Reserved Instances
  C. Multi-AZ deployment

  ---

  Explanation

• Question 916:

  Which AWS Cloud benefit is shown by architecture's ability to withstand with minimal downtime?

  A. Agility
  B. Elasticity
  C. Scalability
  D. High availability
  D. High availability

  ---

  Explanation

  By building a highly available architecture, organizations can minimize or eliminate the impact of failures on their applications and services. This is achieved through strategies such as redundancy, fault tolerance, and automatic failover. When failures occur, the architecture is designed to quickly and seamlessly recover and continue providing services to users, thereby minimizing or avoiding any downtime.

• Question 917:

  A company wants to use AWS. The company has stringent requirements about low-latency access to on-premises systems and data residency. Which AWS service should the company use to design a solution that meets these requirements?

  A. AWS Wavelength
  B. AWS Transit Gateway
  C. AWS Ground Station
  D. AWS Outposts
  D. AWS Outposts

  ---

  Explanation

  AWS Outposts extend AWS infrastructure and services to on-premises locations, providing low-latency access to AWS resources and ensuring data residency. This service is suitable for hybrid environments that require the same AWS services and infrastructure to be available locally. Wavelength, Transit Gateway, and Ground Station do not specifically address low-latency access to on-premises resources or data residency.

• Question 918:

  A company has a compute workload that is steady, predictable, and uninterruptible.

  Which Amazon EC2 instance purchasing options meet these requirements MOST cost-effectively? (Choose two.)

  A. On-Demand Instances
  B. Reserved Instances
  C. Spot Instances
  D. Saving Plans
  E. Dedicated Hosts
  B. Reserved Instances
  D. Saving Plans

  ---

  Explanation

  Reserved Instances and Savings Plans are the most cost-effective purchasing options for a compute workload that is steady, predictable, and uninterruptible. Reserved Instances provide a significant discount compared to On-Demand Instances, and Savings Plans offer flexible and consistent savings on EC2 usage. Both options require a commitment to a consistent amount of usage, in USD per hour, for a term of 1 or 3 years. On-Demand Instances are suitable for short-term, irregular, or unpredictable workloads, but they are more expensive than Reserved Instances or Savings Plans. Spot Instances are the cheapest option, but they are not suitable for uninterruptible workloads, as they can be reclaimed by AWS at any time. Dedicated Hosts and Dedicated Instances are designed for compliance and licensing requirements, not for cost optimization. They are more expensive than the other options, as they run on single-tenant hardware.

  References: Instance purchasing options, Amazon EC2 Pricing, 4 Ways to Purchase Amazon EC2 Instances

• Question 919:

  A company need an AWS service that provides a clear baseline of what the company runs in its on-premises data centers. The company needs the projected cost to run its on-premises workloads in the AWS Cloud.

  What AWS service or tool will meet these requirements?

  A. AWS Compute Optimizer
  B. AWS Cost Explorer
  C. AWS Systems Manager Agent (SSM Agent)
  D. Migration Evaluator
  D. Migration Evaluator

  ---

  Explanation

• Question 920:

  Which benefit of the AWS Cloud helps companies achieve lower usage costs because of the aggregate usage of all AWS users?

  A. No need to guess capacity
  B. Ability to go global in minutes
  C. Economies of scale
  D. Increased speed and agility
  C. Economies of scale

  ---

  Explanation

  The benefit of the AWS Cloud that helps companies achieve lower usage costs because of the aggregate usage of all AWS users is economies of scale. Economies of scale means that AWS can achieve lower costs and higher efficiency by operating at a massive scale and passing the savings to the customers. AWS leverages the aggregate usage of all AWS users to negotiate better prices with hardware vendors, optimize power consumption, and improve operational processes. As a result, AWS can offer lower and more flexible pricing options to the customers, such as pay-as-you-go, reserved, and spot pricing models. No need to guess capacity, ability to go global in minutes, and increased speed and agility are other benefits of the AWS Cloud, but they are not directly related to the aggregate usage of all AWS users. No need to guess capacity means that AWS customers can avoid the risk of over-provisioning or under-provisioning resources, and scale up or down as needed. Ability to go global in minutes means that AWS customers can deploy their applications and data in multiple regions around the world, and deliver them to users with high performance and availability. Increased speed and agility means that AWS customers can quickly and easily provision and access AWS resources, and accelerate their innovation and time to market.