Answer the following problems.
problem 1) Describe the first normal form?
problem 2) Describe the second normal form?
problem 3) Describe the third normal form?
problem 4) Describe the fourth normal form?
problem 5) Describe multi-valued dependencies?
problem 6) Describe the characteristics of database?
problem 7) Describe the three schema architecture?
problem 8) Describe data independence?
problem 9) Describe unordered records files (heap file)?
problem 10) Describe ordered records files (sorted files/ sequential file)?
problem 11) Describe clustering index?
problem 12) Describe two-tier client/server architectures for DBMS?
problem 13) Describe three-tier client/server architectures for DBMS?