Which of the following is NOT a benefit of using Elastic Load Balancing?

Using Elastic Load Balancing (ELB) provides numerous benefits that enhance the performance, reliability, and scalability of applications deployed on AWS. Scalability, fault tolerance, and increased availability are essential advantages.

Scalability allows ELB to handle varying levels of incoming traffic by distributing requests across multiple backend instances. This means that as the load increases, the load balancer can automatically adjust to accommodate the demand, ensuring smooth operation.

Fault tolerance is critical for maintaining service reliability. ELB continuously monitors the health of the registered instances and reroutes traffic away from unhealthy instances. This capability helps maintain operational continuity, even in the event of instance failures.

Increased availability ensures that applications remain accessible and responsive to users. By automatically distributing incoming application traffic across multiple targets, ELB minimizes the risk of any single point of failure, thus enhancing the overall availability of the service.

In contrast, global data replication is not a benefit of Elastic Load Balancing. ELB focuses primarily on distributing incoming application traffic rather than managing or replicating data across different geographical regions. Data replication activities are typically handled by other AWS services, such as Amazon RDS or Amazon S3, which are designed to provide data consistency and availability across regions.