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Summary and Quiz

Explore key concepts of high availability and scalability in AWS. Understand horizontal and vertical scaling, Elastic Load Balancers including ALB, NLB, and GLB types, auto scaling groups, SSL offload, and lifecycle hooks. This lesson helps you consolidate knowledge and assess it with a quiz to ensure readiness for cloud architecture challenges.

In this lesson, we’ll summarize what we’ve learned so far in this chapter and test our knowledge with a short quiz.

Summary

In this chapter, we learned about components and services related to scaling and managing applications in the AWS cloud environment. Here’s a summary of the most important key takeaways from this chapter:

Horizontal vs. vertical scalability

Generally, there are two ways of handling more work: horizontal scalability (adding more machines) and vertical scalability. For either, AWS provides us a way: EC2 Auto Scaling for adding more machines and changing types of EC2 instances to be more powerful.

Elastic load balancers

ELBs are used to distribute incoming traffic across various targets. This can be EC2 ...