Widely used in the programming world because it is easy to convert binary numbers to hexadecimal and vice-versa. 15 symbols are required to represent the hexadecimal number set - 1 2 3 4 5 6 7 8 9 A B C D E F. So 10 (decimal) converted to hexadecimal would be A.HFC: Hybrid Fiber Coax is a network comprising of fiber-optic backbone connected to coaxial cable that connects subscribers homes.Hija