A database administrator experiences delay when performing storage replication between primary and secondary data centers. The data centers are located 20 kilometers apart and are connected using a 50

Resource Reservation Protocol (RSVP) is a signaling protocol used to reserve resources along a path, but it is not a queuing mechanism that directly prioritizes traffic transmission within a single device.

Weighted Round Robin (WRR) is a fair queuing mechanism that gives different weights to different queues, allowing some traffic types more bandwidth, but it does not guarantee immediate transmission like strict priority.

Differentiated Services (DiffServ) is a framework for classifying and marking traffic, but it defines how traffic should be treated, not a specific queuing discipline that inherently guarantees the lowest latency for critical traffic like strict priority.

Strict Priority Queuing (SPQ) ensures that replication traffic, when placed in a high-priority queue, is transmitted before any other traffic in lower-priority queues, guaranteeing preferential treatment and minimizing delays. For critical traffic like storage replication where minimal latency is paramount, strict priority is often the most effective queuing mechanism.