LF: Database Administrator

Hi, Guys! I am planning to apply for Junior Database Administrator (Entry Level).. is there anyone whom I can answer these questions for me.

I have background in MySQL, Microsoft TSQL, PostgreSQL, PowerBI, little with Python

1. What technical skills I should know in order for me to easily learn the job?

2. My adviser said that I should know IBM DB2? What can you advice to me as a beginner?

3. What are your roles when you are junior dba or at least first months? Is it overwhelming?

I really hope to get a feedback from you guys thank u so much ❤️