Which fiber connector combination is required to connect a switch with 1000BASE-SX GBIC modules to one with 1000BASE-SX SFP modules?

1000BASE-SX GBIC modules typically use SC connectors, while 1000BASE-SX SFP modules commonly use LC connectors. Therefore, to connect these two types of modules, an LC to SC fiber optic cable is required. SC to SC would be used if both devices had SC connectors. LC to LC would be used if both devices had LC connectors. SC to ST is less common for Gigabit Ethernet connections and involves a different connector type (ST) not typically found on these specific GBIC or SFP modules.