In your production database， you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation， you find that the database is running in ARCHIVELOG mode and the archived log files

题目

In your production database， you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation， you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members. Which two actions would you take to improve the performance of the database server？（）

A、increase the size of the redo log buffer
B、increase the number of redo log groups
C、increase the number of log writer processes
D、increase the number of ARCn processes
E、change the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location

参考答案和解析

正确答案:B,E

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