oldguo-MySQL 8.0 OCP 原题解析-Q18

Question 18:

A clean shutdown was performed with innodb_fast_shutdown=0.
While you were manipulating files, all files were accidentally deleted from the top-level data directory.
Which two files must be restored from backup to allow the DB to restart cleanly?

A) ibdata1

B) mysql.ibd

C) ib_logfile0

D) ibtmp1

E) ib_buffer_pool

F) undo_001