CompTIA Network+ Practice Test

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What characteristic defines Unshielded Twisted Pair (UTP) cables?

They have additional metal shielding
They provide maximum interference protection
They do not have additional metal shielding
They are used exclusively for fiber optics

The correct answer is: They do not have additional metal shielding

Unshielded Twisted Pair (UTP) cables are defined by the fact that they do not have additional metal shielding. This absence of shielding is a key characteristic that distinguishes UTP from other types of twisted pair cables, such as Shielded Twisted Pair (STP), which does include shielding to protect the data transmission from external interference. UTP cables consist of pairs of wires that are twisted together, which helps to cancel out electromagnetic interference between the pairs themselves. This design makes UTP suitable for various networking applications, particularly in environments where moderate interference is present. The other options describe features that do not apply to UTP. For instance, UTP cables do not possess the added layer of metal shielding that would provide enhanced protection against interference, which is why they are not suitable for all high-noise environments. Additionally, UTP cables are not used for fiber optics, as they are primarily designed for copper-based networking.