1 NF

2 NF

3 NF

All of the above

Both S1 and S2 are true

S1 is true

S2 is true

None of these

in second normal form but not in third normal form

in third normal form but not in BCNF

in BCNF

in none of the above

2 NF

3 NF

BCNF

4 NF

BCNF is stricter than 3 NF

Lossless, dependency -preserving decomposition into 3 NF is always possible

Loss less, dependency - preserving decomposition into BCNF is always possible

Any relation with two attributes is BCNF