How do you call the conduction of impulse along a myelinated nerve fibre?

How do you call the conduction of impulse along a myelinated nerve fibre ?
OR
Why is the mode of conduction of electrical impulse along the myelinated neuron is advantageous to a non-myelinated neuron ? What is this type of conduction called ?

Along a myelinated nerve fibre, the conduction of impulse is called saltatory conduction.
(b) This is so because the ionic changes and consequent depolarization takes place only at the nodes of Ranvier free from myelin sheath leading to the jumping of action potential from one node to the next.