Mysql OCP 74 questions

When you examine a new MySQL installation with default configuration, you find a file called ibdata1 in the database directory. Which two statements are true about this file?
A. it containsthe binary log.
B. it contains a general tablespace.
C. it is the default location for all new tables that you create.
D. it contains the system tablespace.
E. itcontains the redo log.
F. it contains the undo log.

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MYSQL