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单选题
Note the points about data dictionary views and dynamic performance views： 1.These are stored in the SYSTEM tablespace. 2.These are the based on the virtual tables. 3.These are owned by the SYSuser. 4.These can be queried by a normal user only if O7_DICTIONARY_ACCESSIBILTY parameter is set toTRUE. 5.V$FIXED_TABLE view can be queried to list the names of these views. Which statements listed describe the data dictionary views（）
A
1 and 3
B
2，3，and 5
C
1，2，and 3
D
2，3，4，and 5
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多选题Which two statements about the SQL Management Base (SMB) are true?（）AIt contains only SQL profiles generated by SQL Tuning Advisor.BIt stores plans generated by the optimizer using a stored outline.CIt is part of the data dictionary and stored in the SYSAUX tablespace.DIt is part of the data dictionary and stored in the SYSTEM tablespace.EIt contains the statement log, the plan history, plan baselines, and SQL profiles.
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多选题Which two statements about the SQL Management Base (SMB) are true? （）(Choose two.)AIt contains only SQL profiles generated by SQL Tuning Advisor.BIt stores plans generated by the optimizer using a stored outline.CIt is part of the data dictionary and stored in the SYSAUX tablespace.DIt is part of the data dictionary and stored in the SYSTEM tablespace.EIt contains the statement log, the plan history, plan baselines, and SQL profiles.
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问答题Directions: Tourism is a multibillion dollars industry that supports economic development. But people hold different views about it. Write a composition about 160 words entitled Tourism—a Blessing or a Misfortune?based on the following points: different interpretations about tourism, and your opinion. Now write the composition on the AnswerSheet.
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单选题Which statements listed below describe the data dictionary views（） 1） These are stored in the SYSTEM tablespace. 2） These are the based on the virtual tables. 3） These are owned by the SYS user. 4） These can be queried by a normal user only if O7_DICTIONARY_ACCESSIBILTY parameter is set to TRUE. 5） The V$FIXED_TABLE view can be queried to list the names of these views.A
1 and 3B
2， 3， and 5C
1， 2， and 3D
2， 3， 4， and 5
考题
多选题Which statements are correct about temporary tables（）AIndexes and views can be created on temporary tables.BBoth the data and the structure of temporary tables can be exported.CTemporary tables are always created in a user’s temporary tablespace.DThe data inserted into a temporary table in a session is available to other sessions.EData manipulation language （DML） locks are never acquired on the data of temporary tables
考题
多选题Which two statements are true about simple views？（）AViews can be created as read only.BViews are data segments like tables.CViews can be created on the basis of more than one table.DData manipulation language （DML） operations cannot be performed on views.
考题
单选题You work as a database administrator for Supportcenter.cn. In a production environment， users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response？（）A
The trace fileB
The fixed viewsC
The data dictionary viewsD
The operating system log fieldsE
The dynamic performance views.
考题
单选题Which data dictionary views displays the error information related to a data file， when an internal read fails on that file？（）A
V$DATAFILEB
V$DATAFILE_HEADERC
DBA_DATA_FILESD
V$DBFILEE
V$DATAFILE_ERRORS
考题
单选题You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was created.) How do you obtain the definition of the view?（）A
Use the DESCRIBE command on the EMP_DEPT_VU view.B
Use the DEFINE VIEW command on the EMP_DEPT_VU view.C
Use the DESCRIBE VIEW command on the EMP_DEPT_VU view.D
Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.E
Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.F
Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.
考题
单选题What does the Metadata Application Programming Interface （API） allow you to do？（）A
Repair damaged data dictionary entries.B
Delete data dictionary information about database objects you no longer need.C
Extract data definition commands from the data dictionary in a variety of formats.D
Prepare pseudocode modules for conversion to Java or PL/SQL programs with a Metadata code generator
考题
多选题Which two statements are true about the Automatic Workload Repository （AWR）（）AAll AWR tables belong to the SYSTEM schema.BThe AWR contains systemwide tracing and logging information.CThe snapshots collected by the AWR are accessible through data dictionary views.DThe snapshots collected by the AWR are used by self-tuning components in the database.
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