Cost-volume-profit analysis (CVP), or break-even analysis,

there no difference between break even profit analysis and cost volume profit analysis

The break- even analysis identifies the break-even point, which is the level of sales and expenses, including loan principal payments, at which a business has no profit and no loss.

Yes. Because break even analysis determines the sales level needed to break even in units or dollars (both are numbers) so it is quantitative.

Limitation of break even is that it says that all costs remain same while it is not possible in actual world even then it is quite useful for analysis.