【单选题】
Hardware locks, keypads on entry doors, badge readers, and biometric readers are all examplesof which of the following security types?（）
A、Physical
B、Logical
C、Software
D、Authentication
查看正确答案
A、InnoDB uses row and table-level locks, but row locks are not escalates B、InnoDB locks only those rows that are updated C、InnoDB only uses row locks, not page or table-level locks D、InnoDB row locks may be escalated to page or table-level locks E、InnoDB uses row-level or table-level locks depending on the number of rows affected
