Microsoft introduced One Version to:
Eliminate large, disruptive upgrades
Keep all customers on supported and secure versions
Deliver features continuously rather than in big releases
From an architectural perspective, this improves:
System stability
Predictable update planning
Long-term sustainability of solutions
First read the answer fully, then try to explain it in your own words. After that, open a few related questions and compare the concepts. This method helps you remember the topic for a longer time and improves exam preparation.