A sharp cliff caused by sudden movements along dip-slip faults is called a scarp.

Here's why:

* Dip-slip faults: These faults involve movement along the dip of the fault plane, either up or down. This creates a vertical displacement of the rock layers.

* Scarp: A scarp is a steep slope or cliff that is formed by the sudden vertical displacement of the ground. This displacement can be caused by various geological processes, including faulting.

So, the sharp cliff formed by the movement along a dip-slip fault is a specific type of scarp called a fault scarp.