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The DevOps team at a Big Data consultancy has set up Amazon Elastic Compute Cloud (Amazon EC2) instances across two AWS Regions for its flagship application. Which of the following characterizes this application architecture?Question 27Answera.Deploying the application across two AWS Regions improves securityb.Deploying the application across two AWS Regions improves agilityc.Deploying the application across two AWS Regions improves scalabilityd.Deploying the application across two AWS Regions improves availability

Question

The DevOps team at a Big Data consultancy has set up Amazon Elastic Compute Cloud (Amazon EC2) instances across two AWS Regions for its flagship application. Which of the following characterizes this application architecture?Question 27Answera.Deploying the application across two AWS Regions improves securityb.Deploying the application across two AWS Regions improves agilityc.Deploying the application across two AWS Regions improves scalabilityd.Deploying the application across two AWS Regions improves availability

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Solution

The correct answer is d. Deploying the application across two AWS Regions improves availability.

Here's why:

a. While deploying across two regions can add a layer of redundancy that could potentially aid in security, it is not primarily a security measure. Security in AWS is managed through other services and features like Security Groups, NACLs, IAM, etc.

b. Agility refers to the ability to move quickly and easily. While having resources in two regions could potentially provide some benefits in terms of flexibility, it's not the primary benefit or characterization of this architecture.

c. Scalability refers to the ability of the system to handle increased load. While deploying across two regions can potentially provide more resources to scale up, it's not the primary reason for deploying across two regions. Auto Scaling, on the other hand, is a service specifically designed for scalability.

d. Availability refers to the system being accessible and operational when users need it. By deploying the application across two AWS Regions, the DevOps team is ensuring that if one region goes down, the application is still available in the other region. This is a key strategy for improving availability and minimizing downtime, which is why it is the correct answer.

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