Which two behaviors does Weighted Random Early Detection (WRED) perform? (Choose two.)

WRED (Weighted Random Early Detection) is a congestion avoidance mechanism. It mitigates congestion by proactively dropping packets before a queue becomes full, preventing tail drops and global synchronization. This is achieved by randomly dropping packets when the queue depth reaches a certain threshold, rather than waiting for the queue to be completely full. WRED can also differentiate between different types of traffic (e.g., by IP precedence or DSCP values) and drop lower-priority packets more aggressively than higher-priority packets as congestion increases. "It supports protocol discovery" is incorrect; protocol discovery is not a function of WRED. "It guarantees the delivery of high-priority packets" is incorrect; WRED prioritizes dropping lower-priority packets but does not guarantee delivery of any packets. "It can identify different flows with a high level of granularity" is incorrect; while WRED can differentiate traffic types, it doesn't identify individual flows with high granularity like flow-based queuing mechanisms.