HDLC帧格式的数据信息段由()构成。
A.8位
B.16位
C.32位
D.任意长
第1题
A. No transaction on the tablespace is allowed but you can perform queries.
B. The tablespace will automatically come out of backup mode when the file copy is complete.
C. The checkpoint change number is frozen in headers of the data files until the file is removed from backup mode.
D. The database writes the before image of an entire block to the redo stream before modifying. block tor the first time.
第2题
A.1-c,2-b,3-d,4-a
B.1-b,2-c,3-d,4-a
C.1-a,2-b,3-c,4-d
D.1-a,2-b,3-d,4-c
第3题
A. Create a table view.
B. Create a view in any schema.
C. Create a view in your schema.
D. Create a sequence view in any schema.
E. Create a view that is accessible by everyone.
F. Create a view only of it is based on tables that you created.
第4题
A.Enableinstancefailover
B.Configuresharedserver
C.Enabledatabasefailover
D.Enableconnect-timefailover
E.EnableTransparentApplicationFailover(TAF)
第5题
A. Segment Advisor
B. SQL Access Advisor
C. Optimizer statistics gathering
D. Automatic SQL Tuning Advisor
E. Automatic Database Diagnostics Monitor
第6题
A.Monitorthealert.logfile
B.Enableserver-sideSQLtracingforusersessions
C.Enablefine-grainedauditingforthecustomertable
D.EnableFine-GrainedAccessControl(FGAC)forthecustomertable
E.WriteadatabasetriggeronthecustomertableontheSELECTevent
第7题
A. You cannot roll back this statement.
B. All pending transactions are committed.
C. All views based on the DEPT table are deleted.
D. All indexes based on the DEPT table are dropped.
E. All data in the table is deleted, and the table structure is also deleted.
F. All data in the table is deleted, but the structure of the table is retained.
G. All synonyms based on the DEPT table are deleted.
第8题
A. selection of SQL plan baselines
B. partitioning of tables and indexes
C. creation of index-organized tables
D. creation of bitmap, function-based, and B-tree indexes
E. optimization of materialized views for maximum query usage and fast refresh
第9题
A.LargePool
B.RedoLogBuffer
C.DatabaseBufferCache
D.ProgramGlobalArea(PGA)
第10题
A.Usesundodataforrollforward
B.UsesFlashbackLogforrecovery
C.Usesonlineredologstorollback
D.Usesundodatatorollbackthetransaction
E.UsesRecoveryManager(RMAN)torollback
F.UsestheSystemMonitor(SMON)backgroundprocesstoperforminstancerecovery
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