Exam AWS Certified Cloud Practitioner topic 1 question 447 discussion

Availability Zones consist of one or more discrete data centers, each with redundant power, networking, and connectivity, housed in separate facilities. Ref link 1: https://docs.aws.amazon.com/whitepapers/latest/aws-overview/global-infrastructure.html To provide additional scalability and reliability, these data center facilities are located in different physical locations. These locations are categorized by regions and Availability Zones. AWS Regions are large and widely dispersed into separate geographic locations. Availability Zones are distinct locations within an AWS Region that are engineered to be isolated from failures in other Availability Zones. They provide inexpensive, low-latency network connectivity to other Availability Zones in the same AWS Region. Ref link 2: https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/RegionsAndAZs.html

A. one or more data centers in a single location. An Availability Zone (AZ) refers to one or more data centers in a single location that are engineered to be isolated from failures in other Availability Zones. Each Availability Zone runs on its own physically distinct, independent infrastructure, and is engineered to be highly reliable. In the event of an infrastructure failure, such as a power outage or network disruption, only the resources in a single Availability Zone are affected, while the resources in other Availability Zones remain available. By spreading resources across multiple Availability Zones, companies can build highly available and fault-tolerant applications that can withstand the loss of an entire data center.

A. one or more data centers in a single location.

B. two or more data centers in multiple locations. One AZ should contain at least two data centers.

use Amazon Comprehend to undeerstand the question.

Each Region has multiple, isolated locations known as Availability Zones. So Answer A is in a single location that is wrong!

English comprehension

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html "Availability Zones are multiple, isolated locations within each Region"

B. two or more data centers in multiple locations. " Availability Zones consist of one or more discrete data centers, each with redundant power, networking, and connectivity, housed in separate facilities." https://docs.aws.amazon.com/whitepapers/latest/aws-overview/global-infrastructure.html

Answer A is correct. An Availability Zone (AZ) is one or more discrete data centers with redundant power, networking, and connectivity in an AWS Region. https://aws.amazon.com/about-aws/global-infrastructure/regions_az/

what is a 'location' is tricky but <two> or more is incorrect, so the anwser is A

A is the correct answer

Multiple location = Region

option A

An Availability Zone consists of A. one or more data centers in a single location. An Availability Zone (AZ) is an isolated location within a region that contains one or more data centers. Each data center within an AZ is physically separate from the others and has independent power, cooling, and networking infrastructure. This is done to ensure that applications and data can remain available in the event of a failure or outage in another AZ.

its B https://docs.aws.amazon.com/whitepapers/latest/aws-overview/global-infrastructure.html "Availability Zones consist of one or more discrete data centers, each with redundant power, networking, and connectivity, housed in separate facilities."

An Availability Zone is a distinct location in an AWS Region. Each Availability Zone is isolated, but the Availability Zones in a Region are connected to each other with low latency, high throughput, and highly redundant networking.