Which is the most popular international cable standard?

Dear my friends ,

the answer you provided are for technology standard not for cable standard the Ethernet definition for BASE data transfer is like you mentioned for different technology speeds and how signal travel over the 8 pins of the RJ45.in copper or over the twin LED in in fiber

The BASE X is for fiber SM and MM while the BASE T is for copper 8 pin RJ45

For cable standards we refer to CAT standards as for CAT6e and CAT7 for copper transmission and those are the most common cables standards

Please make sure about these points in your interviews

1000BASE-X

10GBASE-T

25GBASE-T

40GBASE-T 

Most popular cable standards are cat5,cat6,cat7.

Ethernet Cable is the most popular cable standard with various types (10BASE-T, 100BASE-TX, and 1000BASE-T)

Considering the term Popular i would go for CAT 6

1000BASE-X

10GBASE-T

25GBASE-T

40GBASE-T 

and Ethernet Cable is the most popular cable standard with various types (10BASE-T, 100BASE-TX, and 1000BASE-T)