110. What are the consequences of executing the SHUTDOWN ABORT command? (Choose two.)
A) The database files are synchronized.
B) Uncommitted changes are not rolled back.
C) The database is closed, but the instance is still started.
D) Database buffers and redo buffers are not written to the disk.
E) The database undergoes automatic media recovery during the next startup.
答案：BD
undergo：经历，遭受
shutdown abort后--没有commited的数据不会rollback，Database buffers and redo buffers are not written to the disk.
当数据库执行了SHUTDOWN ABORT或者由于操作系统、主机等原因宕机重启后，在ALTER DATABASE OPEN的时候，就会自动做实例恢复.
实例恢复: 启动的时候 从某个点把日志文件里内容 完全写到数据文件,打开,把没有提交的rollback
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/11312660/viewspace-718612/ ，如需转载，请注明出处，否则将追究法律责任。
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