Which two statements describe the operation of link-state routing protocols? (Choose two.) -All routers in the same area have identical link-state databases when converged. -Routing loops are prevented by running the Diffusing Update Algorithm (DUAL). -Link-state routers send frequent periodic updates of the entire routing table. Reliable Transport Protocol (RTP) is used to deliver and receive LSAs. -Calculating the shortest path for each destination is accomplished with the SPF algorithm.