单项选择题
A. Run Segment Advisor
B. Run the SQL Tuning Advisor （STA）
C. Run the Automatic Workload Repository （AWR） report
D. Run the SQL Access Advisor with a hypothetical workload
单项选择题 Youneedtomaintainarecordofalltransactionsonsometablesforatleastthreeyears.Automaticundomanagementisenabledforthedatabase.Whatmustyoudoaccomplishthistask？（）
多项选择题 YouhaveenabledbackupoptimizationfortheRMANenvironment.IdentifytwocriteriaonwhichRMANwillskipthefile，ifithasalreadybeenbackedup.（）
单项选择题 You want to set the following initialization parameters for your database instance： LOG_ARCHIVE_DEST_1 = ’LOCATION=/disk1/arch’ LOG_ARCHIVE_DEST_2 = ’LOCATION=/disk2/arch’ LOG_ARCHIVE_DEST_3 = ’LOACTION=/disk3/arch’ LOG_ARCHIVE_DEST_4 = ’LOCATION=/disk4/arch MANDATORY’ Identify the statement that correctly describes this setting.（）