Generally, you would calculate the additional tax penalty on Form 5329 if you qualify for one of the exceptions and your retirement plan did not report the exception on Form 1099-R in box 7. If the exception is properly coded in box 7 of your 1099-R form, you do not need to fill out Form 5329.
The hillslope profile position that forms the steepest and generally linear, middle portion of the slope. In profile, backslopes are commonly bounded by a convex shoulder above and a concave footslope below. They may or may not include cliff segments (i.e., free faces). Backslopes are commonly erosional forms produced by mass movement, colluvial action, and running water.
backplane is the shared capacity between interfaces on a switch switch fabric is also the shared capacity between interfaces on a switch and can also be the shared capacity between interfaces on multiple switches using some sort of interconnect, typically vendor specific.