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Question: XYZ Corp.'s facilities in Nashua, New Hampshire, are two office buildings 400 feet apart, each with its own LAN. To connect the two networks, you plan to dig a trench and lay cable in conduit between the two buildings. You want to use fiber-optic cable, but your budget-conscious facilities manager wants to use 100 Mbps Ethernet over twisted-pair cable. Which of the following reasons can you use to justify fiber-optic cable in this case, and why?
• a: Twisted pair won't span a 400-foot distance.
• b: Fiber-optic cable is cheaper and easier to work with than twisted pair.
• c: Twisted pair is a conductive cable and can, therefore, carry current based on the difference in ground potential between the two buildings.
• d: Fiber-optic cable leaves more room for growth and future needs for increased bandwidth than twisted pair does.
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