Why is it that the waterfall model has iteration restrictions?

Why is there a limit on the number of iterations that may be carried out while using the waterfall model?

You may choose the waterfall strategy if you had to choose between it and a method that was more applicable to the present day.Which of the following modern iterative waterfall methods is most appealing to you? Do you think there is a way out of this predicament?

Why is it the case that when the waterfall model is used, the number of iterations is often limited to a maximum that has been predetermined?

Why do iteration constraints exist in the waterfall model?

Three strong justifications for why the spiral model is preferable to the waterfall method are requested.

The iteration limits of the waterfall model beg the question: why are they there?

The Incremental Model has four benefits over the Waterfall Model. Is this beneficial?

If you had to pick between the waterfall approach and a more modern alternative, you may select it. Which contemporary waterfall iteration method would you use? Is there a solution to our problem?

What are the similarities and differences between the waterfall model and the iterative and incremental method, as well as what are the similarities and differences between the waterfall model itself?