brakes on a bike used to grab the wheel rim with rubber blocks,
now, 'cos the rims are usually covered in mud, mountain bikes have disk brakes (like a car).
you can have mechanical disk brakes, which work by the brake lever pulling a wire to apply the brake (like 'normal' brakes)
or hydraulic disk brakes which work by the brake lever pushing hydraulic liquid to apply the brakes, they are considered much better for braking.
The shox are the front and/or rear suspension.
now, 'cos the rims are usually covered in mud, mountain bikes have disk brakes (like a car).
you can have mechanical disk brakes, which work by the brake lever pulling a wire to apply the brake (like 'normal' brakes)
or hydraulic disk brakes which work by the brake lever pushing hydraulic liquid to apply the brakes, they are considered much better for braking.
The shox are the front and/or rear suspension.