Load Balancer

Implementing a Load Balancer

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Question

The server team has just installed an application across three different servers.

They are asking that all requests to the application are spread evenly across the three servers.

Which of the following should the network team implement to fulfil the request?

A.

Proxy server B.

UTM appliance C.

Content filter D.

Load balancer.

D.

Explanations

The server team has just installed an application across three different servers.

They are asking that all requests to the application are spread evenly across the three servers.

Which of the following should the network team implement to fulfil the request?

A.

Proxy server

B.

UTM appliance

C.

Content filter

D.

Load balancer.

D.

The correct answer is D. Load balancer.

When an application is deployed across multiple servers, there is a need to distribute the workload evenly across the servers to improve performance and reliability. A load balancer is a device that distributes network traffic across multiple servers.

A load balancer acts as an intermediary between the client and server and routes client requests to the appropriate server based on preconfigured rules or algorithms. By doing this, a load balancer ensures that no server is overburdened with traffic while other servers remain idle.

There are different types of load balancing algorithms, such as round-robin, least connections, IP hash, and content-based routing. The choice of the algorithm depends on the application's requirements, network topology, and traffic patterns.

Load balancers can be implemented as a hardware appliance or as software running on a server. They can be deployed in different network topologies, such as a dedicated load balancing network segment, inline with the servers, or in the cloud.

In summary, a load balancer is the best solution for distributing traffic evenly across multiple servers hosting an application.