MySQL 8.0 OCP 认证考试 题库更新 MySQL 8.0 Database Administrator

考试科目：1Z0-908

近期发现，MySQL OCP认证考试题库发生变化，出现了很多新题，对此，CUUG专门收集整理了最新版本的MySQL考试原题，并会给出答案和解析。

MySQL部分新题：

Which two are requirements for multiple MySQL servers started by systemd?

    A：Each must have unique passwords.

    B：Each require separate server-id numbers.

    C：Each must have a unique server-uuid configured.

    D：Each must have a unique socket file and TCP/IP port.

    E：Each must have a unique data directory.

Which three methods are part of a 'scale up' approach to capacity planning?

    A：adding a new node to InnoDB Cluster

    B：adding more RAM

    C：sharding the server into a parallel server farm

    D：adding a replication slave

    E：adding more CPU power

    F：adding additional MySQL servers to the current host

    G：adding more storage to your disk array

Which statement is true about cold backups?

    A：They are backups taken from OS copy commands.

    B：They are backups taken from snapshots of a running database.

    C：They are good to use if only data structures must be backed up but not log files.

    D：They are good to use when many users are online accessing the database.

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