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Day 18 of AWS SAA Certification: Elastic Load Balancing (ELB) & Application Load Balancer (ALB)
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👋 Welcome back, readers!
I hope you’re learning and practicing daily as we aim to complete the AWS Solutions Architect Associate (SAA) Certification in 75 days! Apologies for the slight delay — corporate life has been keeping me busy, but I’m back, and today we’ll dive into the world of Amazon ELB and Amazon ALB. These services are essential for ensuring high availability and scalability in AWS environments. Let’s get started! 🚀
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What is High Availability (HA) and Scalability?
🔄 High Availability (HA)
High Availability ensures that your applications and data are continuously accessible, even in the face of failures. In AWS, HA is achieved through:
- Multiple Availability Zones (AZs): Distributes your resources across different locations within a region, protecting you from localized failures.
- Redundancy: By deploying backup instances of critical components, you reduce single points of failure.
- Automatic Failover: Systems automatically switch to backup components if a failure occurs.
- Monitoring and…