Description
AWS Elastic Load Balancer (ELB) is a cloud-based service that automatically distributes incoming application traffic across multiple targets, such as Amazon EC2 instances, containers, and IP addresses. It enhances the availability and fault tolerance of your applications by ensuring that no single instance bears too much load. ELB supports different types of load balancers, including Application Load Balancer for HTTP/HTTPS traffic, Network Load Balancer for ultra-high performance, and Gateway Load Balancer for third-party virtual appliances. By configuring health checks, security settings, and routing rules, you can optimize performance, improve security, and ensure seamless user experiences. ELB integrates with other AWS services like Auto Scaling and AWS WAF for comprehensive traffic management and security.
Stack
Expected Behaviors
Fundamental Awareness
At the fundamental awareness level, individuals are expected to understand the basic concepts and purposes of AWS Elastic Load Balancer, identify its different types, and navigate the AWS Management Console to locate ELB features.
Novice
Novices can create a basic AWS Elastic Load Balancer, configure health checks, attach EC2 instances, and understand the role of security groups in ELB. They can perform simple tasks but require guidance for more complex configurations.
Intermediate
Intermediate users can configure listener rules, set up SSL/TLS certificates, implement sticky sessions, monitor and log metrics, and troubleshoot common issues. They have a solid understanding and can handle more complex tasks independently.
Advanced
Advanced practitioners can implement path-based and host-based routing, use ELB with Auto Scaling groups, integrate with AWS WAF, and optimize performance and cost. They can design and manage sophisticated ELB configurations with minimal supervision.
Expert
Experts design highly available and fault-tolerant architectures, manage advanced traffic using AWS Global Accelerator, implement cross-region load balancing, automate configurations with IaC tools, and conduct performance testing and tuning. They are capable of leading and innovating in ELB deployments.