单项选择题
You work as a database administrator for Certkiller .com. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated.
What could be the reason for this problem？（）
A.The advisory memory has been turned off.
B.The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.
C.The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.
D.The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.
E.The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.
相关考题
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多项选择题
YourbossatCertkiller.comwantsyoutoclarifyOracle10g.WhichtwostatementsregardingtheLOGGINGclauseoftheCREATETABLESPACE...statementarecorrecte？（）
A.This clause is not valid for a temporary or undotablespace.
B.If thetablespaceis in the NOLOGGING mode， no operation on thetablespacewill generate redo.
C.Thetablespacewill be IntheNOLOGGING mode by default， if not specified while creating atablespace.
D.Thetablespace-level logging attribute can be overridden by logging specification at the table， index， materialized view， materialized view log， and partition levels. -
多项选择题
You work as a database administrator for Certkiller .com. In your development environmentenvironment， the developers are responsible for modifying the table structure according to the application requirements. However， you want to keep track of the ALTER TABLE commands being executed by developers， so you enable auditing to achieve this objective. Which two views would you refer to find out the audit information？（）
A.DBA_AUDIT_TRAIL
B.DBA_AUDIT_SESSION
C.DBA_FGA_AUDIT_TRAIL
D.DBA_COMMON_AUDIT_TRAIL -
单项选择题
YourbossatCertkiller.comwantsyoutoclarifyOracle10g.WhichstatementregardingthecontentsoftheV$PARAMETERviewistrue？（）
A.Displays only the list of default values
B.Displays only the list of all basic parameters
C.Displays the currently in effect parameter values
D.Displays only the list of all advanced parameters
E.Displays the list of all the parameter files of a database
F.Displays the current contents of the server parameter file.
