I did not have any idea of the Ferrite Bead at the beginning. But now I do have a bit of knowledge that I am sharing here.
It is a type of the electronic component. It has the capacity to suppress the noises that are created by the high frequencies. These are quite similar to the inductors in many ways.
These are basically high impedance providers. It is very simple, as well as not expensive.
These are mainly applied in the device that requires noise suppression (of a very high frequency). It can also be used to function in some of the electrical devices.
Example it is widely used in case of the DC supplies and also in case of the transmission cables.