OCP-1Z0-053-V12.02-174题

174.What Oracle process runs when the database is in ARCHIVELOG mode but not when it is in
NOARCHIVELOG mode?
A. MMON
B. LGWR
C. ARCH
D. ARWR
E. COPY
Answer: C
答案解析：
ARCH指归档进程，只有在归档模式下的数据库才会有的进程。

Archiver (ARCn)

One or more archiver processes copy the redo log files to archival storage when they are full or a log switch occurs.