Exam AWS Certified Cloud Practitioner topic 1 question 152 discussion

A: AWS Regions within various Availability Zones. "within" Availability Zones are distinct locations within an AWS Region that are engineered to be isolated from failures in other Availability Zones. D: AWS Regions with independent Availability Zones."With"

A, D look the same to me

OPtion D - is the correct option 1.) The AWS infrastructure is made up of multiple AWS Regions within various Availability Zones located in areas that have low flood risk, and are interconnected with low-latency networks and redundant power supplies. - WRONG "The AWS infrastructure is made up of multiple AWS Regions within various Availability Zones " Regions are not within AZs B. The AWS infrastructure consists of subnets containing various Availability Zones with multiple data centers located in the same geographic location. - wrong bcoz Subnets doesnt contain AZs C. AWS allows users to choose AWS Regions and data centers so that users can select the closest data centers in different Regions.- although the sttatemnet is correct but it is more suitable for latency prospective D. The AWS infrastructure consists of isolated AWS Regions with independent Availability Zones that are connected with low-latency networking and redundant power supplies. - correct option

isolated AWS Regions?? Arent AWS Regions connected? This is confusing!

B. Elasticity Using Amazon EC2 Auto Scaling to automatically adjust the number of Amazon EC2 instances based on demand illustrates the benefit of elasticity in the AWS Cloud. This allows the infrastructure to scale up or down dynamically to handle varying workloads efficiently.

AWS achieves high availability and fault tolerance through its global infrastructure, which is designed to provide resiliency and minimize downtime. The infrastructure is built using isolated AWS Regions, which are separate geographic areas with their own set of data centers. Each Region consists of multiple Availability Zones, which are physically separate and isolated from each other. Availability Zones are equipped with redundant power supplies, networking, and cooling systems to ensure high availability. By deploying resources across multiple Availability Zones within a Region, users can achieve fault tolerance and protect their applications from single points of failure. The low-latency networking between Availability Zones allows for fast and reliable communication between resources.

D. The AWS infrastructure consists of isolated AWS Regions with independent Availability Zones that are connected with low-latency networking and redundant power supplies. AWS achieves high availability and fault tolerance for its users by building its infrastructure on top of independent AWS Regions, which are made up of separate Availability Zones. Each Availability Zone is physically isolated and located in a separate geographic location with redundant power, networking, and connectivity to other zones within the same region. This isolation and redundancy ensure that even if one Availability Zone fails, other zones within the same region continue to operate normally

D is the answer.

Can anyone explain the difference between A&D?