When you start reading Digital Twin, below are some of the topics which need an answer:
What is Digital Twin?
How does Digital Twin work’s?
What are its components and Types?
What is the specialty of Digital Twin and why it will or is Gaining Popularity?
Where is Digital Twin in Telecom?
Use cases of Digital Twin?
Cloud-Enabled Digital Twin?
Read it for very crisp and clear information. It can explain it well & also useful in interview question & answer to it.