Please show the answer step by step, thx!!!

2. Here are two types of indexed allocation, what is the difference between these two methods?

3. What is Bit Table, how does it work? In your opinion, where shall we store the bit table (main memory or disk)? List your reason.

Fik allestionable File allocation table File name Index block Index Neck File 5 151 D Reg Sur Length Fig 3 Fig 4