Question: Answer true and false, no explanations needed. 1c (10 points) hudge th for each of them correctness of the following statements and chooseTrue' o' False'

 Answer true and false, no explanations needed. 1c (10 points) hudge

Answer true and false, no explanations needed.

1c (10 points) hudge th for each of them correctness of the following statements and choose"True' o' False' derived by using Armstrong's axios em eet F of functional dependencies (F D., any F.D. in its closure F+ can be Correctness: (A) True: (B) False (2) It is alway simultancously: (a) BCNF: (b) lossless join;(c) dependency preservation. s possible to achieve the following three goals for a relational database design Correctness:(A) True; (B) False. (3) In the ODMG object model, the extent of a class contains all of its transient objects Correctness: (A) True: (B) False (4) Operation "read A)" in one transaction is conflict to operation "write(B)" in another Correctness: (A) True; (B) False. (5) Every serial schedule of transactions is a serializable schedule. Correctness: (A) True; (B) False (o) A lossless-join decomposition ensures that no spurious tuples will be generated. Correctness: (A) True; (B) False (7) The physical data independence ensures that no change for the database applications is required when the conceptual schema is changed. Correctness: (A) True; (B) False (8) A database schema is not expected to change frequently, comparing to its corresponding database instance. Correctness: (A) True; (B) False. (9) In the recovery procedure for the deferred-update technique, no undo operation is needed Correctness: (4) True; (B) False

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