Inyourproductiondatabase，youhaveobservedthatthedatabaseserverperformancedegradeswheneverthereisaswitchbetweentheloggroups.Onfurtherinvestigation，youfindthatthedatabaseisrunninginARCHIVELOGmodeandthearchivedlogfilesarebeingwrittentothesamediskthatisusedtostoretheredologmembers.Whichtwoactionswouldyoutaketoimprovetheperformanceofthedatabaseserver？（）
A.increasethesizeoftheredologbuffer
B.increasethenumberofredologgroups
C.increasethenumberoflogwriterprocesses
D.increasethenumberofARCnprocesses
E.changetheappropriateLOG_ARCHIVE_DEST_nparametertoplacethearchivedlogfilesinaseparatelocation
正确答案：参考B, E
