2.Which three statements are true about pfiles, spfiles or both?

　　A) All spfile parameters can be modified successfully with the scope=both clause.

　　B) A spfile can be created by an idle instance.

　　C) spfiles and pfiles may both be edited with an O/S editing utility.

　　D) Some spfile parameters can be modified successfully with the scope=memory clause.

　　E) A pfile can be created by an idle instance.

　　F) All spfile parameters can be modified successfully with the scope=memory clause.

　　Anser：BDE

　　(解析：spfile 和 pfile 可以互相转换，而且不需要实例启动，参数分为静态参数和动态参数，只有动态参数才能够马上修改生效。备注来自ocp3群：1015267481)

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