ACloud Guru Certified Cloud Practitioner Practice Exam

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What is a core design principle for deploying resources in AWS?

Plan ahead for hardware capacity
Estimate your S3 storage needs up front
Use a tight coupling of your resources and applications
Deploy in multiple Availability Zones

The correct answer is: Deploy in multiple Availability Zones

Deploying resources in multiple Availability Zones is a core design principle in AWS that enhances availability and resilience. By distributing resources across multiple, isolated locations within an AWS Region, you can achieve higher fault tolerance. If one Availability Zone experiences an outage, the application can continue to function using resources in another zone. This design principle encourages architects to build applications that can withstand failures, ensuring that critical services remain operational even during a single point of failure. Utilizing multiple Availability Zones allows for load balancing and helps in maintaining consistent performance for users, ultimately contributing to a more robust infrastructure. The other options tend to focus on specific aspects of resource management or planning rather than emphasizing the architectural advantage of distributing resources to enhance overall service reliability.