Explanatory Question
Why is “99.999% availability” often unrealistic?
Read the answer carefully and go through the related questions on the right side to improve your understanding of this topic.
Because:
The core platform may not support it
It requires very high cost
It may exceed budget limits
👉 Requirements must be realistic, not just desirable.
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.