Which advantage of fiber optics is related to the physical footprint required compared to traditional cabling?

The advantage of fiber optics related to the physical footprint required compared to traditional cabling is indeed size. Fiber optic cables are much thinner and lighter than copper cables, which allows for a more compact installation. This is particularly advantageous in environments where space is limited, such as in data centers or in buildings with a high density of networking equipment. The reduced size of fiber optic cabling not only saves space within conduits and cable trays but also results in less weight, facilitating easier installation and less strain on supporting structures.

In contrast, while high speed, security, and immunity to electromagnetic interference (EMI) are significant benefits of fiber optics, they do not pertain to the physical footprint of the cabling itself. High speed refers to the data transmission capabilities, security relates to the reduced risk of tapping and breaches, and EMI addresses the ability of fiber to operate without interference from electrical signals. Each of these aspects contributes to the overall performance and reliability of fiber optic systems, but size is the specific advantage linked to the physical space required for installation.