Overview
Although ropes might be necessary on harder scrambles, sustained use of rope and belay probably counts as climbing; typically, the use of ropes in scrambling is limited to rappelling or for basic safety uses other than belays up a vertical face.
While much of the enjoyment of scrambling depends on the freedom from technical apparatus, unroped scrambling in exposed situations is potentially one of the most dangerous of mountaineering activities. For this reason most guidebooks advise carrying a rope, especially on harder scrambles, which may be used for security on exposed sections, to assist less confident members of the party, or to facilitate retreat in case of difficulty. Above all, scramblers are advised to know their limits and to turn back before they get into difficulties.
Many of the world's mountaintops may be reached by walking or scrambling up their least-steep side. These routes are not always obvious, but mountaineering books generally mention them; they are often used as the safe and easy way to descend from a more difficult route. A more extreme version of scrambling is rock hopping which entails jumping from one rock to another, often without the protection of a rope.
Read more about this topic: Scrambling