You have two redo log groups. each group has three members that are 150 mb in size. the members reside on the e, f, and g drives. you issue this command:
alter database add logfile member ‘g: \app\oradata\inst1\redo04.log’ size 200m to group 1;
the statement will fail because:
a. all redo log groups must have the same number of members.
b. the size cannot be specified in this command.
c. you cannot add a member to a redo log group.
d. the size is incorrect.

7. design a circuit with three inputs (x, y, and z) representing the bits in a binary number, and three outputs (a, b, and c) also representing bits in a binary number. when the input is 1, 2, or 3, the binary output should be one lesser than the input. when the input is 4, 5, or 6, the binary output should be one greater than the input. when the input is 0, the output is 0, and when the input is 7, the output is 7. show your truth table, all computations for simplification, and the final circuit.