Question7: Normalize the above Software relation into 4NF.

Answer:
SOFTWARE (SoftwareVendor, Product, Release, SystemReq, Price)
WARRANTY (SoftwareVendor, Warranty)

Question8: What normal form is the following relation in?
only H,I can act as the key.
STUFF (H, I, J, K, L, M, N, O)
H, I -> J, K, L
J -> M
K -> N
L -> O

Answer:
2NF (Transitive dependencies exist)

Question9: What normal form the following relation in?
STUFF2 (D, O, N, T, C, R, Y)
D, O -> N, T, C, R, Y
C, R -> D
D -> N

Answer:
1NF (Partial Key Dependency exist)