Cisco ENCOR Practice Exam 2025 – All-in-One Comprehensive Guide to Mastering Enterprise Network Core Technologies!

WRED stands for Weighted Random Early Detection. This is a congestion avoidance mechanism that's implemented in network devices like routers and switches. WRED aims to manage queue size and improve network performance by selectively dropping packets before the queue is full.

In WRED, packets are assigned different weights based on their type or priority. The mechanism decides which packets to drop probabilistically, giving higher priority packets a better chance of being transmitted during times of congestion. This approach helps preserve the performance of high-priority applications and ensures that the network does not become too congested, effectively reducing latency and packet loss for important traffic.

The other options do not reflect the correct terminology or functionality associated with WRED. For example, Weighted Random Event Detection and Weighted Routing Error Detection are not recognized concepts in networking, while Weighted Resource Evaluation Distribution does not correspond to any known network management technique. Understanding WRED and its purpose is essential for effectively managing network traffic and ensuring quality of service.