Master AWS DevOps Pro 2025 – Conquer the Cloud with Confidence!

The main function of AWS Elastic Load Balancer (ELB) is to distribute incoming application traffic across multiple targets, such as Amazon EC2 instances, containers, or IP addresses. This distribution of traffic enhances the availability and fault tolerance of applications. By ensuring that the load is evenly distributed among the various resources, ELB helps prevent any single instance from becoming a bottleneck due to high traffic, thereby improving application performance and ensuring smooth user experiences.

Furthermore, ELB also automatically scales to accommodate varying loads, which means it can dynamically adjust to changes in incoming traffic. This capability is critical for applications that experience variable traffic patterns, ensuring they remain responsive and resource-efficient. The service also integrates with Auto Scaling groups, allowing it to automatically route traffic to healthy instances and maintain the overall health of the application.

The other options address different AWS services or functionalities unrelated to load balancing. For instance, the option related to storing large volumes of unstructured data pertains to services like Amazon S3, while serverless computing capabilities reference AWS Lambda. Lastly, delivering content with low latency is more closely associated with services like Amazon CloudFront, which focus on content delivery networks (CDNs).