ACloud Guru Certified Cloud Practitioner Practice Exam

In a multi-tier application architecture, which component typically interacts most with an Elastic Load Balancer?

1. Database

2. Application server

3. User interface

4. Storage service

The correct answer is: Application server

In a multi-tier application architecture, the component that typically interacts most with an Elastic Load Balancer is the application server. The primary function of an Elastic Load Balancer is to distribute incoming application traffic across multiple targets, such as EC2 instances that host application servers. This ensures that no single server becomes overwhelmed with requests, thereby improving the application's availability and reliability. When a user makes a request through the user interface, this request is sent to the Elastic Load Balancer, which then routes it to one of the application servers that can handle the request. The application server processes the request and may need to interact with other components, such as databases or storage services, to retrieve or store data as necessary. However, the Elastic Load Balancer itself primarily manages the traffic to and from the application servers, facilitating efficient communication and resource management. The database, user interface, and storage service do not interact directly with the Elastic Load Balancer in the same way that application servers do. The database handles data storage and retrieval but doesn’t manage traffic. The user interface serves as the front end that users interact with, while the storage service is used for data storage, both of which rely on the application server to process requests routed by the Elastic Load Balancer. Therefore