Amazon Web Services Updated CLF-C02 Exam Questions and Answers by wiktor

Loose coupling is a design principle that involves reducing dependencies between application components so that they can operate independently. This approach ensures that the failure of one component does not affect the availability of the others, thereby improving the application ' s fault tolerance and resilience. Disposable resources, automation, and rightsizing are valuable principles in cloud architecture, but they do not directly address the requirement of remaining available despite the failure of an individual component like loose coupling does.

AWS Direct Connectis a cloud service solution that makes it easy to establish a dedicated network connection from your premises to AWS. This requires the use of an Internet Service Provider (ISP) and a colocation facility to connect to the Direct Connect location. It provides a private, high-speed, low-latency connection that does not go over the public internet.

A. AWS VPN: Incorrect, as AWS VPN establishes secure connections over the internet and does not necessarily require a colocation facility.

B. Amazon Connect: Incorrect, as it is a cloud-based contact center service.

D. Internet Gateway: Incorrect, as it is a horizontally scaled, redundant, and highly available VPC component that allows communication between instances in your VPC and the internet.

AWS Cloud References:

AWS Direct Connect

AWS CodeStar is a service that enables you to quickly develop, build, and deploy applications on AWS. It provides a unified user interface for managing your application lifecycle, including code repositories, build pipelines, deployments, and project dashboards. AWS CodeStar also integrates with other AWS services, such as AWS CodeCommit, AWS CodeBuild, AWS CodeDeploy, and AWS CodePipeline, to create a complete CI/CD pipeline for your application12. References:

AWS CodeStar

AWS Certified Cloud Practitioner Exam Guide

Amazon EC2 Spot Instancesoffer spare AWS compute capacity at a significantly reduced cost compared to On-Demand Instances. Spot Instances are ideal for fault-tolerant and flexibleworkloads that can tolerate interruptions, such as batch jobs, data processing, or large-scale computations. These instances may be interrupted by AWS if there is a demand for capacity, but they provide the best cost optimization for workloads that can handle such interruptions.

Why other options are not suitable:

A. Amazon Macie: A data security and privacy service, not relevant to running batch jobs.

B. Amazon Neptune: A graph database service, not relevant to compute optimization.

D. Amazon EC2 On-Demand Instances: Provide flexible compute capacity but at a higher cost than Spot Instances, which are more suitable for cost optimization.