Which configuration allows for scaling by distributing new tenants across database servers?

The option that facilitates scaling by distributing new tenants across database servers is the approach that utilizes multiple database servers. This configuration allows organizations to manage large sets of data by effectively spreading the load across several servers, enabling them to handle increased demands as new tenants are added.

By utilizing multiple database servers, each server can manage its own set of tenants independently, which enhances performance and reliability. This setup not only spreads the data more efficiently but also offers greater fault tolerance, as the failure of one server does not compromise the entire system; other servers can continue servicing requests.

Centralized database management would typically involve storing all data in a single database, which does not support the same level of scalability. Fixed database configurations limit flexibility in resource allocation and could become bottlenecks as the demand grows. Single database licensing does not assist in distributing the load across multiple servers, hence it limits scalability as all tenants would be managed from a single entity.

Overall, a multiple database servers connection is optimal for organizations looking to scale their database infrastructure effectively and optimize performance as tenant loads increase.