Which of the following roles does a server play in a server-based network?

In a server-based network, the primary role of a server is to receive requests from clients or users connected to the network. Servers are designed to handle these incoming requests, which can include tasks such as processing data, accessing files, or managing network resources. They then respond to the requests accordingly, delivering the needed information or services back to the clients. This setup allows for efficient resource management and centralized control, which are key features of server-based networks.

While other roles, such as monitoring connections or distributing software updates, may occur in a server environment, they are not the primary function of a server. Servers may be involved in these activities, but their fundamental purpose centers around receiving and processing requests from clients, making option A the most accurate choice.