OCP 062最新考试题库，062题库出现大量新题-21
最新学讯：近期OCP认证正在报名中，因考试人员较多请尽快报名获取最近考试时间，报名费用请联系在线老师，甲骨文官方认证，报名从速！
我要咨询2018年的时候，OCP 11g考试题库大更新，052 053出现了很多新题，
2019年，11g即将停考的前期，Oracle又出现了一次大变动，12c出现了很多新题，比如062 063题库大更新
OCP解析公开课时间：【每周五晚8点】
OCP解析公开课地址：http://ke.qq.com/course/326223
OCP解析群资料分享：1015267481 验证：ocp
-------------------------------------------------------
choose three
Which three statements are true about Oracle checkpoint processing?
A) Incremental checkpoints write some dirty buffers to the datafiles and unwritten redo to the online redo logs.
B) Frequent thread checkpoints can degrade database performance.
C) Thread checkpoints ensure that all dirty buffers are written to data files during a normal shutdown.
D) It reduces the recovery time from instance failures.
E) Database Writer (DBWn) processes write checkpoint information to datafile headers and the control file.
Answer：BCD
(解析：答案BCD比较容易理解，答案E让人觉得是对的，DBWR只负责写脏块，更新检查点信息的事情是由检查点进程来做的。)
