Learn how to deploy Amazon EC2 instances across multiple locations within an AWS Region to improve reliability and fault tolerance by utilizing multiple Availability Zones.
Table of Contents
Question
A company wants its Amazon EC2 instances to be in different locations but share the same geographic area. The company also wants to use multiple power grids and independent networking connectivity for the EC2 instances.
Which solution meets these requirements?
A. Use EC2 instances in multiple edge locations in the same AWS Region.
B. Use EC2 instances in multiple Availability Zones in the same AWS Region.
C. Use EC2 instances in multiple Amazon Connect locations in the same AWS Region.
D. Use EC2 instances in multiple AWS Artifact locations in the same AWS Region.
Answer
B. Use EC2 instances in multiple Availability Zones in the same AWS Region.
Explanation
An AWS Region is a separate geographic area, like us-east-1 (N. Virginia) or eu-west-1 (Ireland). Within each Region, there are multiple isolated locations called Availability Zones (AZs). Each AZ has its own power, cooling, and networking infrastructure, and is physically separate from other AZs. However, all the AZs within a Region are connected through low-latency links.
By deploying EC2 instances across multiple AZs within the same Region, the company can ensure that its instances are in different physical locations (improving fault tolerance) while still being geographically close and well-connected to each other (minimizing latency). This also allows the instances to use multiple independent power grids and network connections as required.
The other options are incorrect:
- Edge locations (Option A) are used for content caching with CloudFront, not for running EC2 instances
- Amazon Connect locations (Option C) are for Amazon’s cloud contact center service, not EC2
- AWS Artifact (Option D) provides access to compliance reports and is unrelated to EC2 instance deployment
So in summary, deploying EC2 instances across multiple Availability Zones in a single AWS Region is the best way to meet the company’s requirements for location diversity, independent infrastructure, and geographic proximity.
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