网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
View the Exhibit to examine the output produced by the following query at three different times since thedatabase instance started and has experienced workloads of different capacities：SQL> SELECT substr（component， 0， 10） COMP， current_size CS， user_specified_size US FROM v$memory_dynamic_componentsWHERE current_size!=0；What do you infer from this（）
A
The database instance is running with manual PGA management.
B
The database instance is running with manual shared memory management.
C
The database instance has the MEMORY_TARGET value set to a nonzero value.
D
All sessions are connected to the database instance in dedicated mode， and no RMAN or parallel queryoperations have been performed
参考答案
参考解析
解析：
暂无解析
更多 “单选题View the Exhibit to examine the output produced by the following query at three different times since thedatabase instance started and has experienced workloads of different capacities：SQL SELECT substr（component， 0， 10） COMP， current_size CS， user_specified_size US FROM v$memory_dynamic_componentsWHERE current_size!=0；What do you infer from this（）A The database instance is running with manual PGA management.B The database instance is running with manual shared memory management.C The database instance has the MEMORY_TARGET value set to a nonzero value.D All sessions are connected to the database instance in dedicated mode， and no RMAN or parallel queryoperations have been performed” 相关考题
考题
in the past century, language teaching and learning practice has been influenced by three different views of language, namely, the structural view, the functional view and ______________.
A. interactional viewB. cognitive viewC. constructivist viewD. behaviorist view
考题
View the Exhibit and examine the output.You execute the following RMAN command to perform the backup operation:What is the multiplexing level in the preceding backup process()
A. 4B. 8C. 7D. 0
考题
Examine the following commands and their output:SQL SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 1050QL UPDATE emp SET sal=sal+sal*1.2 WHERE ename=‘JAMES‘;1 row updated.SQL SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 2310View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.What could be the possible cause for the query not displaying any row?（）A. Flashback logging is not enabled for the database.B. The changes made to the table are not committed.C. Supplemental logging is not enabled for the database.D. The database is not configured in ARCHIVELOG mode.
考题
View the exhibit and examine the output.Which statement can be an inference from the output?()
A. The FRA disk group has an asynchronous I/O bottleneckB. The least number of I/Os are performed on the last data file in the listC. The number of times that the backup or restore process directed the OS to wait until an I/O was complete is the highest for the last data file in the listD. The number of times that the backup or restore process made an OS call to poll for I/O completion in Nonblocking mode is the least for the FRA disk group
考题
View the Exhibit exhibit1 to examine the series of SQL commands. View the Exhibit exhibit2 to examine the plans available in the SQL plan baseline. The baseline in the first row of the Exhibit is created when OPTIMIZER_MODE was set to FIRST_ROWS.Which statement is true if the SQL query in exhibit1 is executed again when the valueof OPTIMIZER_MODE is set to FIRST_ROWS?（）A. The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans.B. The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan.C. The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan.D. The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.
考题
Examine the data from the ORDERS and CUSTOMERS tables.Evaluate the SQL statement:What is the result when the query is executed?()
A.B.C.D. The query fails because the subquery returns more than one row.E. The query fails because the outer query and the inner query are using different tables.
考题
Examine the following commands and their output:View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.What could be the possible cause for the query not displaying any row?（）A. Flashback logging is not enabled for the database.B. The changes made to the table are not committed.C. Supplemental logging is not enabled for the database.D. The database is not configured in ARCHIVELOG mode.
考题
Examine the parameter for your database instance:You generated the execution plan for the following query in the plan table and noticed that the nested loop join was done. After actual execution of the query, you notice that the hash join was done in the execution plan:Identify the reason why the optimizer chose different execution plans.（）A. The optimizer used a dynamic plan for the query.B. The optimizer chose different plans because automatic dynamic sampling was enabled.C. The optimizer used re-optimization cardinality feedback for the query.D. The optimizer chose different plan because extended statistics were created for the columns used.
考题
Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables.Evaluate the SQL statement:SELECT *FROM ordersWHERE cust_id = (SELECT cust_idFROM customersWHERE cust_name = ‘Smith‘);What is the result when the query is executed?（）A.AB.BC.CD.DE.E
考题
Examine the following output： SQL SELECT index_name，status FROM dba_indexes WHERE status=’UNUSABLE’； INDEX_NAME STATUS------------------------------ ----------- EIND UNUSABLE Which two statements about the above index are true（）A、It is ignored by the query optimizer.B、It is not used while the index is being rebuilt.C、The index cannot be rebuilt， and has to be re-created.D、The index is automatically rebuilt when used the next time
考题
Examine the parameter for your database instance: You generated the execution plan for the following query in the plan table and noticed that the nested loop join was done. After actual execution of the query, you notice that the hash join was done in the execution plan: Identify the reason why the optimizer chose different execution plans.（）A、The optimizer used a dynamic plan for the query.B、The optimizer chose different plans because automatic dynamic sampling was enabled.C、The optimizer used re-optimization cardinality feedback for the query.D、The optimizer chose different plan because extended statistics were created for the columns used.
考题
View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERTS view. After 30 minutes， you executed the following command： SQL SELECT reason，metric_value FROM dba_outstanding_alerts； REASON METRIC_VALUE ------------------------------------------------------------ ------------ Tablespace [TEST] is [28 percent]full 28.125 What could be the reason for the elimination of the other rows in the output（）A、An Automatic Workload Repository snapshot has been taken recently.B、The non-threshold-based alerts are transferred to DBA_ALERT_HISTORY.C、The threshold alerts conditions are cleared and the alerts are transferred to DBA_ALERT_HISTORY.D、The threshold alerts related to database metrics are permanently stored in DBA_ALERT_HISTORY but not the threshold alerts related to instance metrics.
考题
View the Exhibit to examine the output produced by the following query at three different times since thedatabase instance started and has experienced workloads of different capacities：SQL SELECT substr（component， 0， 10） COMP， current_size CS， user_specified_size US FROM v$memory_dynamic_componentsWHERE current_size!=0；What do you infer from this（）A、The database instance is running with manual PGA management.B、The database instance is running with manual shared memory management.C、The database instance has the MEMORY_TARGET value set to a nonzero value.D、All sessions are connected to the database instance in dedicated mode， and no RMAN or parallel queryoperations have been performed
考题
As the DBA， you run the following query on your ASM instance. What is the implication of the results of the query？（） SQL select group_number， name， state from v$ASM_DISKGROUP； GROUP_NUMBER NAME STATE 0 DGROUP1 DISMOUNTED 2 DGROUP2 MOUNTED 3 DGROUP3 MOUNTED A、 The DGROUP1 disk group was unmounted by another DBA.B、 A datafile has been lost， causing the ASM disk group DGROUP1 to go into the DISMOUNTED stateC、 One of the redundant disks （DGROUP1） has been lost in a disk group.D、 This query has no meaning in an ASM instance.E、 A disk associated with a disk group was discovered after the ASM instance initially opened.
考题
View the Exhibit and examine the output of the query in different times when the following command runs in an RMAN sessions: RMAN BACKUP DATABASE FILESPERSET 2; The database has seven data files. Why is the %_COMPLETE refreshed to 13.59 in the third output after reaching 88.77?（）A、Because the progress is reported for each data fileB、Because the progress is reported for each backup setC、Because other RMAN sessions have issued the same BACKUP commandD、Because new data files have been added to the database while the RMAN backup is in progress
考题
View the Exhibit and examine the output. You execute the following RMAN command to perform the backup operation： RMAN RUN { ALLOCATE CHANNEL c1 DEVICE TYPE disk MAXOPENFILES 8； BACKUP DATABASE FILESPERSET 4； } What is the multiplexing level in the preceding backup process？（）A、 4B、 8C、 7D、 0
考题
Oracle Grid Infrastructure for a stand-alone server is installed on your production host before installing the Oracle Database server. The database and listener are configured by using Oracle Restart. Examine the following command and its output: $ crsctl config has CRS-4622: Oracle High Availability Services auto start is enabled. What does this imply?（）A、When you start an instance on a high with SQL *Plus dependent listeners and ASM disk groups are automatically started.B、When a database instance is started by using the SRVCTL utility and listener startup fails, the instance is still started.C、When a database is created by using SQL* Plus, it is automatically added to the Oracle Restart configuration.D、When you create a database service by modifying the SERVICE_NAMES initialization parameter, it is automatically added to the Oracle Restart configuration.
考题
多选题Examine the following output： SQL SELECT index_name，status FROM dba_indexes WHERE status=’UNUSABLE’； INDEX_NAME STATUS------------------------------ ----------- EIND UNUSABLE Which two statements about the above index are true（）AIt is ignored by the query optimizer.BIt is not used while the index is being rebuilt.CThe index cannot be rebuilt， and has to be re-created.DThe index is automatically rebuilt when used the next time
考题
单选题View the Exhibit and examine the output of the query in different times when the following command runs in an RMAN sessions: RMAN BACKUP DATABASE FILESPERSET 2; The database has seven data files. Why is the %_COMPLETE refreshed to 13.59 in the third output after reaching 88.77?（）A
Because the progress is reported for each data fileB
Because the progress is reported for each backup setC
Because other RMAN sessions have issued the same BACKUP commandD
Because new data files have been added to the database while the RMAN backup is in progress
考题
单选题View the Exhibit and examine the details of the EMPLOYEES table. The query was written to format the PHONE_NUMBER for the employees. Which option would be the correct format in the output？（）A
xxx-xxx-xxxxB
（xxx） xxxxxxxC
（xxx） xxx-xxxxD
xxx-（xxx）-xxxx
考题
单选题View the Exhibit and examine the Flashback Database architecture. Identify the missing component （shown with a "？"） in the Flashback Database architecture.（）A
DBWnB
RVWRC
ARCHD
RECOE
TRWR
考题
单选题Examine the parameter for your database instance: You generated the execution plan for the following query in the plan table and noticed that the nested loop join was done. After actual execution of the query, you notice that the hash join was done in the execution plan: Identify the reason why the optimizer chose different execution plans.（）A
The optimizer used a dynamic plan for the query.B
The optimizer chose different plans because automatic dynamic sampling was enabled.C
The optimizer used re-optimization cardinality feedback for the query.D
The optimizer chose different plan because extended statistics were created for the columns used.
考题
单选题View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERTS view. After 30 minutes， you executed the following command： SQL SELECT reason，metric_value FROM dba_outstanding_alerts； REASON METRIC_VALUE ------------------------------------------------------------ ------------ Tablespace [TEST] is [28 percent]full 28.125 What could be the reason for the elimination of the other rows in the output（）A
An Automatic Workload Repository snapshot has been taken recently.B
The non-threshold-based alerts are transferred to DBA_ALERT_HISTORY.C
The threshold alerts conditions are cleared and the alerts are transferred to DBA_ALERT_HISTORY.D
The threshold alerts related to database metrics are permanently stored in DBA_ALERT_HISTORY but not the threshold alerts related to instance metrics.
考题
单选题A user named Arren is executing this query： select table_name，operation，undo_sql from flashback_transaction_query t， （select versions_xid as xid from employees versions between scn minvalue and maxvalue where employee_id = 123） e where t.xid = e.xid； When the query runs，he receives an ORA-01031： insufficient privileges error. Since the user owns the employees table，you know that it is not the problem. Which of the following SQL statements will correct this problem？（）A
GRANT SELECT ANY TRANSACTION TO ARRENB
GRANT SELECT ON FLASHBACK_TRANSACTION_QUERY TO ARRENC
GRANT SELECT_ANY_TRANSACTION TO ARREND
GRANT FLASHBACK TO ARRENE
GRANT SELECT ANY VIEW TO ARREN
考题
单选题EXHIBIT, Emp Table Exhibit A Exhibit B Examine the data from the EMP table. Evaluate this SQL statement: SELECT * FROM emp WHERE emp _ id = 3); WHERE commission = (SELECT commission FROM emp What is the result when the query is executed?（）A
Exhibit AB
Exhibit BC
The query returns no rowsD
The query fails because the outer query is retrieving more than one columnE
The query fails because both the inner and outer queries are retrieving data from the same table.
考题
单选题Oracle Grid Infrastructure for a stand-alone server is installed on your production host before installing the Oracle Database server. The database and listener are configured by using Oracle Restart. Examine the following command and its output: $ crsctl config has CRS-4622: Oracle High Availability Services auto start is enabled. What does this imply?（）A
When you start an instance on a high with SQL *Plus dependent listeners and ASM disk groups are automatically started.B
When a database instance is started by using the SRVCTL utility and listener startup fails, the instance is still started.C
When a database is created by using SQL* Plus, it is automatically added to the Oracle Restart configuration.D
When you create a database service by modifying the SERVICE_NAMES initialization parameter, it is automatically added to the Oracle Restart configuration.
考题
单选题To examine the Exhibit， press the Exhibit button. Using the "ps -mo THREAD" output as shown in the exhibit， which of the following conclusions is most appropriate to draw？（）A
This is a uniprocessor systemB
The "prog" process has a nice value of 107C
There are two active processors on this systemD
The "prog" process will only be scheduled to run on processor 0
热门标签
最新试卷