Question: 1. Construct a precedence graph for the following schedule: Transaction 7, Transaction 7, Transaction 7, read_item(Y): read_item(Z): Time XXX read item(X): write_tem(X): read_item(Y); write_tem(Y);

1. Construct a precedence graph for the following schedule: Transaction 7, Transaction 7, Transaction 7,

1. Construct a precedence graph for the following schedule: Transaction 7, Transaction 7, Transaction 7, read_item(Y): read_item(Z): Time XXX read item(X): write_tem(X): read_item(Y); write_tem(Y); read_tem(Z); read_item(Y); write item(Y): read item(X); write_tem(X): write_tem(Y); write_tem(Z): 2. Is the schedule serializable or not? Explain. 3. In Encryption, what are the differences between Public Key and Private Key?

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