Tell whether the following set of decomposition of functional dependency is Lossy or not and dependency preserved or not? See the screenshot

Question

Answer 1

I think you have marked correct it is dependency preserving and lossless.

Comments

Yes. Lossless as the common attribute is a key in each of the decomposed relation and dependency preserving as all the FDs are there in at least one of the decomposed relation.

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I think you mean  "Lossless" as the common attribute is a key in each of the decomposed relation.

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yes :) I have corrected now.

Answer 2

1 true

2 false

3  true

4 false

so (2) option correct