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1z0-040 问题列表
问题
单选题The system was running a normal workload during the last 24 hours. You need to ensure that with the same workload you should be able to flashback tables by three hours. What would you do to find the system recommendations for the undo retention period and the undo tablespace size?（）A
set DB_FLASHBACK_RETENTION_TARGET=10800 B
create a new scheduler window for the time period of 24 hours and use the optimizer statistics C
modify the Automatic Workload Repository (AWR) snapshot time interval to three hours and use ADDMfindings D
specify New Undo Retention as three hours and Analysis Time period as Last One Day in the Undo Advisor page and use its recommendations
问题
单选题You have 100 segments in the USERS tablespace. You realize that the USERS tablespace is running low on space. You can use Segment Advisor to（）.A
add data files to the tablespace B
identify the segments that you should shrink C
modify the storage parameters for the tablespace D
automatically shrink the segments with unused space E
check the alerts generated for the tablespace that is running low on space
问题
单选题You have 100 segments in the USERS tablespace. You realize that the USERS tablespace is running low on space. You can use Segment Advisor to（）.A
add data files to the tablespace B
identify the segments that you should shrink C
modify the storage parameters for the tablespace D
automatically shrink the segments with unused space E
check the alerts generated for the tablespace that is running low on space
问题
多选题Which two statements regarding the FLASHBACK_TRANSACTION_QUERY view are correct?（）AYou can find information about only active transactions from the viewBYou can find information about read only transactions from the viewCYou require the SELECT ANY TRANSACTION system privilege to access the viewDYou can find information about both active and committed transactions from the viewEYou require the SELECT ON FLASHBACK_TRANSACTION_QUERY object privilege to access the view
问题
多选题You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）Aset SQL_TRACE=TrueBset UNDO_RETENTION=14400Cset FAST_START_MTTR_TARGET=240Dset LOG_CHECKPOINT_INTERVAL=240Eset DB_FLASHBACK_RETENTION_TARGET=14400Fset the RETENTION GUARANTEE clause for the undo tablespace
问题
多选题You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）Aset SQL_TRACE=TrueBset UNDO_RETENTION=14400Cset FAST_START_MTTR_TARGET=240Dset LOG_CHECKPOINT_INTERVAL=240Eset DB_FLASHBACK_RETENTION_TARGET=14400Fset the RETENTION GUARANTEE clause for the undo tablespace
问题
单选题You have three temporary tablespace groups named G1, G2, and G3 in your database. You are creating a new temporary tablespace as follows: CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE /u1/data/temp1.dbf SIZE 10M TABLESPACE GROUP ;Which statement regarding the above command is correct?（）A
It will create the tablespace TEMP1 in group G1B
It will create the tablespace TEMP1 in group G3 C
It will not add the tablespace TEMP1 to any groupD
It will create the tablespace TEMP1 in the default groupE
It will throw an error with message 'specified group is not availableF
It will create a new group with a system-generated name and add the tablespace TEMP1 to it.
问题
单选题You explicitly specified the tablespace usage threshold values while creating a tablespace. You need to revert to the database-wide default tablespace usage threshold values for the tablespace. Which PL/SQL package would you use?（）A
DBMS_STATS B
DBMS_ALERT C
DBMS_SPACE D
DBMS_MONITOR E
DBMS_SERVER_ALERTF
DBMS_SPACE_ADMIN
问题
多选题Which are the three levels at which the Segment Advisor generates advice?（）Ablock levelBobject levelCschema levelDsegment levelEtablespace level
问题
单选题View the Exhibit and examine the highlighted alert. You have received an alert with the Category specified as Snapshot Too Old. Which page would you open from the Advisor Central page to determine the system recommendations to avoid such alerts in future?（）A
ADDM B
Memory Advisor C
Segment Advisor D
Undo Management E
SQL Tuning Advisor F
SQL Access Advisor
问题
单选题You executed the following SQL statement to shrink the EMPLOYEES table segment stored in the EXAMPLE tablespace: ALTER TABLE employees SHRINK SPACE CASCADE; Which statement is correct in this scenario?（）A
The data in the segment will be compacted but the high water mark will not be adjusted B
The EMPLOYEES table will be changed to read-only mode during the shrink operation C
The indexes created on the EMPLOYEES table will need to be rebuilt after the shrink operation is overD
The shrink behavior will be cascaded to all dependent segments of the table that support a shrink operation E
Data manipulation language (DML) operations will not be possible on the EMPLOYEES table during the COMPACTION phase of the shrink operation
问题
多选题Which two statements regarding the Policy Framework in Enterprise Manager (EM) are correct?（）APolicy violations are prioritized as High, Medium, or Informational by categoryBPolicies can be disabled completely, or flagged as ignored, for the specified targetCPolicies can be flagged as ignored, but never completely disabled, for the specified targetDPolicy violations must be corrected, otherwise the database will shut down until corrective action occurs
问题
单选题You have three temporary tablespace groups named G1, G2, and G3 in your database. You are creating a new temporary tablespace as follows: CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE /u1/data/temp1.dbf SIZE 10M TABLESPACE GROUP ;Which statement regarding the above command is correct?（）A
It will create the tablespace TEMP1 in group G1B
It will create the tablespace TEMP1 in group G3 C
It will not add the tablespace TEMP1 to any groupD
It will create the tablespace TEMP1 in the default groupE
It will throw an error with message 'specified group is not availableF
It will create a new group with a system-generated name and add the tablespace TEMP1 to it.
问题
单选题An online tablespace, TEST_TBS, is full and you realize that no server-managed tablespace threshold alerts were generated for the TEST_TBS tablespace. What could be the reason, if the TEST_TBS tablespace does not include autoextensible data files?（）A
TEST_TBS is a small file tablespace B
TEST_TBS is a bigfile tablespace (BFT)C
TEST_TBS is the default temporary tablespaceD
TEST_TBS is a dictionary-managed tablespaceE
Threshold values for the TEST_TBS tablespace are not explicitly specified
问题
单选题View the Exhibit and examine the recommendation graph provided for a test database by the Undo Advisor.The graph recommends that the size of undo tablespace should be set to（）.A
1 MB B
6 MB C
10 MB D
15 MB E
11 MB