A network administrator is troubleshooting connectivity issues in a newly installed network segment. After examining the installation, the administrator notices that there seems to be excessive noise near some of the cables. Which cable type should the administrator suspect is being used, and would be most vulnerable to electromagnetic interference (EMI)?
Unshielded Twisted Pair (UTP) cables are more vulnerable to electromagnetic interference (EMI) compared to their shielded counterparts. UTP cables lack an additional shielding layer, which helps protect against EMI. Shielded Twisted Pair (STP) cables include shielding which substantially reduces the effect of EMI, making them less likely to contribute to connectivity issues related to noise. Fiber optic cables, being based on light transmission, are immune to EMI; hence categorizing them along issues of noise due to electromagnetic disturbances is incorrect.
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