Muriel goes to a bead store to make a bracelet& for her sister. She begins by putting on 3 yellow beads, 2 green beads, 1 black bead, and 3 orange beads in that order. She repeats this pattern until she completes the bracelet. If the final bead she puts on the bracelet is a black bead, which of the following could be the total number of beads on the bracelet?
Immediately after adding a new disk to or removing an existing disk from an ASM instance, you find that the performance of the database goes down initially until the time the addition or removal process is completed, and then gradually becomes normal.
Which two activities would you perform to maintain a consistent performance of the database while adding or removing disks?（）
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