What key function does a client-server network provide businesses with?

In a client-server network, the key function that businesses gain is significantly tied to data accessibility and management. While increased data confidentiality is a crucial aspect of such networks, the primary benefit stems from how information is centralized and managed effectively.

Client-server architecture allows for centralized control over data, leading to stronger security protocols being implemented. This centralized setup supports data encryption and access controls, making it easier to manage who has access to sensitive information and how that information is stored. By implementing robust security measures in the server, businesses can ensure that data remains confidential and is protected from unauthorized access.

Moreover, this centralized nature of the client-server network can facilitate easier updates and maintenance of security practices, ensuring that all client machines operate under the same security standards and protocols. This can significantly reduce vulnerabilities that might arise from decentralized systems.

Looking at the other options, improved operational efficiency focuses on how well processes are streamlined, while enhanced customer service is more about the direct interaction with customers rather than the network structure itself. Likewise, reduced network redundancy pertains to how to best organize resources and prevent unnecessary duplications, which, while relevant, does not capture the core benefit as directly as data confidentiality does in a client-server context.