A company runs a multi-tier web application that hosts news content The application runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an EC2 Auto Scaling group across multiple Availability Zones and use an Amazon Aurora database. A solutions architect needs to make the application more resilient to periodic increases in request rates.
Which architecture should the solutions architect implement? (Select TWO)
A . Add AWS Shield.
B . Add Aurora Replicas
C . Add AWS Direct Connect
D . Add AWS Global Accelerator.
E . Add an Amazon CloudFront distribution in front of the Application Load Balancer
Answer: D, E
Explanation:
AWS Global Accelerator
Acceleration for latency-sensitive applications
Many applications, especially in areas such as gaming, media, mobile apps, and financials, require very low latency for a great user experience. To improve the user experience, Global Accelerator directs user traffic to the application endpoint that is nearest to the client, which reduces internet latency and jitter. Global Accelerator routes traffic to the closest edge location by using Anycast, and then routes it to the closest regional endpoint over the AWS global network. Global Accelerator quickly reacts to changes in network performance to improve your users’ application performance.
Amazon CloudFront
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer-friendly environment.
https://docs.aws.amazon.com/global-accelerator/latest/dg/introduction-benefits-of-migrating.html
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