I highly think it is monotheism as zoroastrinas pray to Ahura Mazda and jews pray to Yahweh. However, Zoroastrianism seems have a dualistic perspective with good guy and bad guy going on with a hero Ahura Mazda and there's a counter evil to it.
I would highly recomment watching videos on this topic by "Cogito" on you-tube as he explains both religions very well
<span>Interpretation of data based on one's own perspective can lead to preconceived ideas, which means that you might create an opinion or have an idea that is not based on sufficient evidence.</span>