CompTIA Network+

Answer: C - 10BaseF will allow for the longest distance between transmitting devices.

Key Takeaway: The 1000BaseCX is an Ethernet standard that utilizes shielded coaxial cable and is only rated for a maximum of 25 meters in length. The 100BaseTX utilizes Cat5 unshielded twisted pair and has a maximum rated cable length of 100 meters. While the data rate is the highest with the 10GbaseSR, which is multimode fiber, it is only rated for a maximum of 300 meters in cable length. Finally the 10BaseF is also fiber, but is rated for a maximum of about 2000 meters making it the longest out of the choices given.