1.) True
Unemployment rates nearest zero are not desirable. This is most likely because having an unemployment rate near zero would mean the cost of goods would increase (more people have cash to spend, and more items are being sold, resulting in a bigger profit which equal more demand for supplies during the cost of production).
2.) False
Nominal GDP is calculated by using the end-of-term (or year) prices. These prices may drastically change, affecting the overall end result of the calculation. The prices come from the goods and services that have been produced in the specified year, so each year most likely has a different end result when calculating by nominal GDP.