单选题Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）Auser-managed backups.Bpartial database backups.Cconsistent database backups.Dinconsistent database backups.
单选题
Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）
A
user-managed backups.
B
partial database backups.
C
consistent database backups.
D
inconsistent database backups.
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