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Distributed CEF, or Distributed Cisco Express Forwarding, is an architecture designed to enhance the performance of packet forwarding in routers. The statement that best describes Distributed CEF is that it implements a full Forwarding Information Base (FIB) on each line card. This means that each line card maintains its own complete FIB, which allows for faster decision-making when forwarding packets since the line card can determine the exit interface for traffic without having to communicate with a central processing unit.

By having a full FIB on each line card, Distributed CEF enhances scalability and efficiency in packet forwarding. This design is particularly beneficial in high-speed environments where rapid forwarding is critical, as it mitigates potential bottlenecks that could occur if all forwarding decisions had to be processed by a single central processor. Therefore, this architecture allows for improved performance and load distribution across multiple line cards.

In contrast, the other options pertain to aspects that do not accurately describe Distributed CEF. While minimizing individual line card routing and Layer 2 switching are components of some routing technologies, they do not specifically highlight the main feature and benefit of Distributed CEF. Additionally, redundancy is an integral part of many robust network designs, often including mechanisms that would still be necessary even with distributed architectures