多项选择题

Which two requirements are critically important to implement for your database backup strategy if you require a 24 hours a day， 7 days a week production environment？（）

A.ARCHIVELOG mode.
B.NOARCHIVELOG mode.
C.Open database backups.
D.Consistent whole backups.

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单项选择题

Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）

A.user-managed backups.
B.partial database backups.
C.consistent database backups.
D.inconsistent database backups.

多项选择题

Oracle Net Configuration Assistant is a post-installation tool that configures basic network components after installation. Which four components are included in the configuration？（）

A.Directory server
B.Hostname adaptor
C.TCP/IP host file
D.Connection Manager
E.connecting pooling
F.external procedures
G.listener names and protocol addresses
H.Net Service names in a tnsnames.ora file
I.naming methods the client uses to resolve connect identifiers

多项选择题

Which two file types must be included in a closed database backup taken with operating system commands？（）

A.data files
B.control file
C.password file
D.online redo log files
E.initialization parameter file