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.

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 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 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.

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.