Quick Answer

The correct answer pairs Query Origin with the router that first sends a query for a lost route. This is accurate because in EIGRP DUAL, the Query Origin is the specific router that initiates the diffusing computation by sending queries to its neighbors when a route transitions from passive to active state. The Passive state indicates a stable, converged route, while the Active state means the router is actively querying neighbors for an alternative path. Local Computation occurs when a feasible successor exists, allowing the router to install a backup route immediately without involving neighbors, whereas Diffusing Computation is triggered when no feasible successor exists, requiring the router to propagate queries and wait for replies. On the ENCOR 350-401 exam, this drag-and-drop task tests your ability to distinguish these DUAL states under time pressure—a common trap is confusing Local Computation with Diffusing Computation, so remember that “local” means no neighbor involvement. A helpful mnemonic is “PAL-DQ”: Passive (stable), Active (querying), Local (feasible successor), Diffusing (no feasible successor), Query Origin (first to send query).