Which transmission media is LEAST susceptible to eavesdropping?

Answer 1

Fiber optic cabling

Answer Explanation: Unlike coaxial cabling, unshielded twisted pair (UTP) cabling, and shielded twisted pair (STP) cabling, fiber optic cabling is not susceptible to eavesdropping. An eavesdropper would have to actually cut the line and tap into the fiber optic cable with a highly complex form of optical T-connector. This would interrupt the connection, which should immediately trigger an alarm.

The "Unshielded twisted pair cabling" and "Shielded twisted pair cabling" options are incorrect. Twisted pair cabling is susceptible to eavesdropping because information is transmitted through the cable via electrical pulses, which emit small amounts of electromagnetic radiation. An eavesdropper could intercept communications with the proper equipment.

The "Coaxial cabling" option is incorrect. Coaxial cabling is susceptible to eavesdropping because anyone can tap into it and add an unauthorized device. Since connections to the network cannot be controlled by a switch or hub, there is no way to prevent unauthorized connections. An intruder can tap into the network with either a basic T-connector or vampire tap.