What is a common characteristic of both network and server redundancy?

Enhancement of reliability is a fundamental characteristic of both network and server redundancy. By implementing redundancy, systems are designed to increase their availability and ensure that operations can continue smoothly even if one component fails. In network redundancy, this may involve utilizing multiple network paths or devices to provide alternative routes for data traffic, while server redundancy often includes duplicating critical servers to handle requests, ensuring that if one server goes down, another can take over without significant disruption.

This characteristic directly contributes to fault tolerance and maintains the overall performance of IT services, making it crucial for organizations that require high uptime and reliability for their networks and servers. The other choices, such as minimizing access control, reducing data encryption, and limiting power sources, do not relate directly to the purpose or function of redundancy in computing infrastructures. Instead, these options imply a negative impact on security and performance, whereas redundancy is aimed at enhancing operational resilience.