Which is the best cable and why ? Coaxial Cable - UTP - STP - Fiber Optics .

All cables are best depending, what are the requirements. Let us put some cases:

Case-1: Customer need a connectivity of nodes on/ Mbps interface of switch and the laying of cable is indoor on a tray or inside duct and environment is non industrial than recommended cable is "CAT-6A UTP"

Case-2:  Customer need a connectivity of nodes on/ Mbps OR// Mbps interface of switch and the laying of cable is indoor on a tray or inside duct and environment is industrial than recommended cable is "CAT-6A STP"

Case-3: Customer need a connectivity of nodes on// Mbps OR Gigabit interface of switch and the laying of cable is indoor on a tray or inside duct  with cable length of more than meter and environment is industrial than recommended cable is "OPTICAL FIBER CABLE" Type Multi-mode 

Case-4: Customer need a connectivity of nodes on// Mbps OR Gigabit interface of switch and the laying of cable is outdoor direct burial in ground or Arial cable with cable length of more than meter and environment is industrial or non industrial than recommended cable is "OPTICAL FIBER CABLE" Type Single-mode 

Fiber optic is the better one than other media but the deciscion should be based on network and the budget you have for your implemetation

We cannot determine how is the best without know what it is work.

I means every type of cables best in its domain. Example,  the newest internet revolution the best is Optical Fiber. old TV the best is Coaxial cable. as this.

of-curse it is  depends upon the situation and requirement. But as compare to other cables like properties, speed, features the Fibre Optic is best. but it is costly to other cables

  Fiber Optics are the best because their speed is better then the others  to transfare the data and there are many factors to make fiber optics in first of the list

Fiber optic cable, also called as optical fiber cable, is a type of Ethernet cable which consists of one or more optic fibers that are used to transmit data. Fiber optic cable transmits data as pulses of light go through tiny tubes of glass. The transmission capacity of optical fiber cable is 26,000 times higher than that of twisted pair cable.

Depends on situation...what is the requirement. But according to properties do you have any doubt about Fibre Optic????

Fiber Optics, Because it can provide a high speed data connection and long distance connection.

fiber optics is the best for data communication because in which data travil in light and high speed and no data loste but the use basde on network industry and budget 

fiber optic is best because data transfer speed is best in this type and more the the signals can effect less then any other types

that depends on the purpose of using or the objective the needs to be met.

fiber optics are the most expensive,most secure,most durable