CLF-C02 Question 148
Select 3Your company is planning to migrate its applications to AWS. To ensure high availability and fault tolerance, the team needs to understand the AWS global infrastructure. Which of the following statements accurately describe key components of the AWS global infrastructure?
- A
AWS Regions are physical locations around the world where AWS clusters data centers.
- B
Availability Zones are isolated locations within a Region that are connected through low-latency links.
- C
Edge locations are used for caching content and are part of the Amazon CloudFront service.
- D
Each AWS Region consists of a single Availability Zone to maximize system simplicity.
- E
The AWS global infrastructure does not support fault tolerance or high availability.
Show answer and explanation
Correct answers: A, B, C
Explanation
The AWS global infrastructure consists of AWS Regions, Availability Zones, and Edge locations. AWS Regions are physical locations worldwide, each containing multiple isolated Availability Zones connected by low-latency networks. Edge locations, part of Amazon CloudFront, help deliver content to users with lower latency. This design ensures high availability, fault tolerance, and scalability, making incorrect statements about single AZ Regions or lack of fault tolerance invalid.
- A. Correct.
Correct. AWS Regions are physical locations worldwide where AWS clusters its data centers to provide infrastructure services.
- B. Correct.
Correct. Availability Zones are isolated locations within an AWS Region and are designed to be interconnected with low-latency, high-throughput links to ensure fault tolerance and high availability.
- C. Correct.
Correct. Edge locations are part of the Amazon CloudFront service and are used to cache content closer to users for lower latency.
- D. Incorrect.
Incorrect. Each AWS Region consists of multiple Availability Zones (at least two) to ensure high availability, not just one.
- E. Incorrect.
Incorrect. The AWS global infrastructure is specifically designed to support fault tolerance, high availability, and scalability.