Should we use fiber optic cable or Ethernet cable to connect to the core switch
In practice, fiber connects the heavy-duty infrastructure (switches, building uplinks, vertical risers) while Ethernet handles your desktops, IP phones, and access points. In addition, fiber cables can transmit data over several kilometers without signal degradation, making them ideal for connecting switches in large campus networks and between different buildings. As they do not emit electromagnetic signals, they're difficult to tap and secure against eavesdropping. They're the two types of cabling you'll find supporting the vast majority of networks ranging from small home LANs up to large ISP data center networks.
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