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单选题
You are a Database Administrator with WonderWeb. You use a password file to establish connections to the Sales database located on the server. You created the password file using the following command： ORAPWD file=d：/oracle/ora9i/orapwU01 password=admin entries=4 You erroneously deleted the password file while the database was running. You re-create the password file using the following command： ORAPWD file=d：/oracle/ora9i/orapwU01 password=change_on_install entries=4 However， when you try to connect as the SYS user， you receive the following error： ORA-01031： insufficient privileges What should you do to resolve this error？（）
A
Delete the newly created password file and re-create another password file with the password admin， without shutting down the database.
B
Enable the operating system authentication， shut down the database， disable the operating system authentication， and restart the database using the password file.
C
Enable the operating system authentication， shut down the database， re-create the password file using the same ORAPWD command， and restart the database using the password file.
D
Delete the newly created password file， enable operating system authentication and shut down the database. Then， re-create another password file using the same ORAPWD command and restart the database using this password file.
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更多 “单选题You are a Database Administrator with WonderWeb. You use a password file to establish connections to the Sales database located on the server. You created the password file using the following command： ORAPWD file=d：/oracle/ora9i/orapwU01 password=admin entries=4 You erroneously deleted the password file while the database was running. You re-create the password file using the following command： ORAPWD file=d：/oracle/ora9i/orapwU01 password=change_on_install entries=4 However， when you try to connect as the SYS user， you receive the following error： ORA-01031： insufficient privileges What should you do to resolve this error？（）A Delete the newly created password file and re-create another password file with the password admin， without shutting down the database.B Enable the operating system authentication， shut down the database， disable the operating system authentication， and restart the database using the password file.C Enable the operating system authentication， shut down the database， re-create the password file using the same ORAPWD command， and restart the database using the password file.D Delete the newly created password file， enable operating system authentication and shut down the database. Then， re-create another password file using the same ORAPWD command and restart the database using this password file.” 相关考题
考题
单选题You executed the following code： BEGIN DBMS_SCHEDULER.SET_ATTRIBUTE （ NAME = ’JOB_A’， ATTRIBUTE = ’JOB_PRIORITY’， VALUE = 7）； END； / After analyzing the above code， what conclusion will you draw？（）A
The code will be executed successfully.B
The code will not be executed successfully because the value of the VALUE parameter must be 1， 2， or 3.C
The code will not be executed successfully because the value of the VALUE parameter must range between 1 and 5.D
The code will not be executed successfully because no SET_ATTRIBUTE procedure exists in the DBMS_SCHDULER package.
考题
单选题You lost the index tablespace in your database. You are not able to use tablespace point-in-time recovery on the index tablespace. What could be the reason for this？（）A
The index tablespace contains bitmap indexes.B
The index tablespace contains more than one data file.C
The index tablespace supports only complete recovery.D
The index tablespace is not a dictionary-managed tablespace.E
There is a dependency relationship between a table and its indexes.
考题
多选题Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？（）Aopen the database with the RESTRICTED optionBopen the database with the RESETLOGS optionCrecover to the required SCN only that data file in which the error occurredDrecover all the data files to the same system change number （SCN）
考题
单选题Which statement is true regarding the creation of nested plans using Resource Manager？（）A
Only one nested subplan is allowed.B
The plans can be nested up to four levels.C
Resource Manager does not support nested plans.D
Nested plans control only the degree of parallelism but not the CPU.E
Each nested plan gets a proportion of the CPU resources assigned to its parent group.
考题
多选题Your database in running in the ARCHIVELOG mode. You issue the following command to back up datafile 2 in your database. RMAN COPY DATAFILE 2 TO ’D:///ORACLE/ORA90/MYNEWDB/DA2.DBF’； Which two statements are true regarding the backup created using this command？（）AThe copy of the datafile created is stored in the RMAN repository.BThe copy of the datafile created can be viewed using the LIST BACKUP command.CThe copy of the datafile created using this COPY command can be placed only on the disk.DThe copy of the datafile created is similar to the backup of the file created using the BACKUP command.EThe copy of the datafile created can be used for recovering the database using the user-managed recovery method.
考题
单选题You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A
Memory AdvisorB
Segment AdvisorC
SQL Access AdvisorD
Automatic Workload Repository （AWR）E
Automatic Database Diagnostic Monitor （ADDM）
考题
单选题You have many users complaining about slow inserts into a large table. While investigating the reason， you find that the number of indexes on the table is high. You want to find out which indexes are not being used. Which method would you follow to achieve this？（）A
enable index monitoring and query the DBA_OBJECTS viewB
enable index monitoring and query the DBA_INDEXES viewC
enable index monitoring and query the V$OBJECT_USAGE viewD
enable index monitoring and view the DBA_INDEXTYPE_COMMENTS view
考题
单选题You have created a resource plan， DB_PLAN， using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan？（）A
assign users to consumer groupsB
set the resource plan for the instanceC
configure a simple resource plan and specify plan directivesD
configure a complex resource plan and specify plan directives
考题
单选题You are maintaining your database in Oracle10g. You find that the INDEXES index tablespace should be recovered. How will you recover the index tablespace？（）A
by using the Flashback Database featureB
by using RMAN incomplete recoveryC
by performing a user-managed incomplete recoveryD
by dropping and re-creating the index tablespace
考题
多选题You have created a resource plan， PROD_DB_PLAN， with the following consumer groups with the respective plan directives： Consumer group SALESwith CPU_P1as 60 and DEGREE_OF_PARALLELISMas 4. Consumer group MARKETwith CPU_P1as 20. Consumer group DEVwith CPU_P1as 20. Consumer groupOTHERSwith CPU_P1as 0 and CPU_P2as 100. Which two statements are correct in this scenario？（）AThe maximum degree of parallelism for the members of the consumer groups is 4.BThe CPU allocation will always be equal for the consumer groups MARKET and DEV.CThe OTHERS consumer group would get 100% of the CPU if there are unused level 1 CPU resources.DThe SALES and MARKET consumer groups would get 100% of the CPU if there are unused level 2 CPU resources.EThe maximum degree of parallelism for the members of the consumer group SALES is 4 with no restriction for the remaining groups.
考题
单选题You are performing backup and recovery operations by using RMAN. You are using a recovery catalog for the RMAN repository. You are planning to migrate to ASM disk storage to enable new disks to be added to the database without shutting down the database. Which information is NOT required during the migration process？（）A
Database Identifier （DBID）B
names and location of datafilesC
names and location of control filesD
names and location of online redo log files
考题
单选题You decided to change the location of the flash recovery area. You executed the following command： ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’+disk1’ SCOPE=BOTH SID=’*’； Which statement is true？（）A
The location can be changed only if the flash recovery area is empty.B
After executing the command， all new flash recovery area files will be created in the new location.C
The command will generate an error because you cannot change the flash recovery area while the database is open.D
All the existing files in the flash recovery area will be moved to the new location and all new Flash Recovery Area files will be created in the new location.
考题
单选题You set the recovery window to seven days and the backup optimization to ON using the CONFIGURE command of Recovery Manager （RMAN）. The most recent backup of the TOOLS tablespace to disk was taken on January 3. The TOOLS tablespace is read/x7fonly. On February 21， when you execute a command to back up all the tablespaces to disk， you find that RMAN backs up the TOOLS tablespace also， even though the contents of the tablespace have not changed after the backup on January 3. Because there are no changes made to the TOOLS tablespace， you decide that the tablespace should not be backed up by RMAN. What can you to do skip backing up the TOOLS tablespace without changing the current backup optimization setting？（）A
configure a default device for RMAN backupsB
temporarily disable the retention policy for RMAN backupsC
configure automatic channel allocation for RMAN backupsD
use the CONFIGURE command to reconfigure the recovery window to 60 days
考题
多选题You set the value of the SGA_TARGET initialization parameter to 1G to enable Oracle to automatically resize most of the memory components according to the current workload in the database. You issue the following statement： SQL SELECT name， value， isdefault 2 FROM v$parameter 3 WHERE name LIKE ’%size%’； The output of this statement displays that the DB_CACHE_SIZE， SHARED_POOL_SIZE， LARGE_POOL_SIZE， and JAVA_POOL_SIZE initialization parameters contain a zero value. What does this imply？（）AThe SGA_TARGET initialization parameter cannot be set to a value less than 1GBThe SGA_TARGET initialization parameter cannot be set to a value greater than 1GCThe Memory Advisor of the Oracle Enterprise Manager 10g cannot be used to obtain advice on the important memory components of the SGADThe values of the DB_CACHE_SIZE， SHARED_POOL_SIZE， LARGE_POOL_SIZE， and JAVA_POOL_SIZE initialization parameters cannot be set manually.ENo minimum limits are imposed on the DB_CACHE_SIZE， SHARED_POOL_SIZE， LARGE_POOL_SIZE， and JAVA_POOL_SIZE initialization parameters.FThe Automatic Shared Memory Management feature cannot be disabled unless you specify values for the DB_CACHE_SIZE， SHARED_POOL_SIZE， LARGE_POOL_SIZE， and JAVA_POOL_SIZE initialization parameters in the initialization parameter file.
考题
单选题You are working as a DBA in an organization. The flash recovery area files are created in ’+disk1’. You want to create new flash recovery area files in the ’+disk2’ location. The new location of the flash recovery area files should be written in the control file and the spfile.Which command will you issue to change the location of the flash recovery area files？（）A
ALTER SYSTEM SET DB_RECOVERY_FILE_DEST = ’+disk2’ ；B
ALTER SYSTEM SET DB_RECOVER_FILE_DEST = ’+disk2’ SCOPE = BOTH；C
ALTER SYSTEM SET DB_CREATE_FILE_DEST = ’+disk2’；D
ALTER SYSTEM SET DB_CREATE_ONLINE_LOG_DEST_n = ’+disk2’；
考题
单选题You executed the following command in Recovery Manager （RMAN） against your Oracle 10g database： RMAN REPORT NEED BACKUP days 3; What would be the output of this command？（）A
a list of files that require a backup within three daysB
a list of files that have not been backed up for three daysC
a list of files that RMAN recommends be backed up only once in every three days， based on low volatilityD
a list of files for which a backup has already been performed and may need a backup after three days
考题
单选题You are using an Automatic Storage Management （ASM） instance to manage the files of your production database. You have two disk groups， DG1and DG2with one device each. In the parameter file of the production database， the following parameters have been specified： DB_CREATE_ONLINE_LOG_DEST_1 = ’+dg1’ DB_CREATE_ONLINE_LOG_DEST_2 = ’+dg2’ What would be the impact of this setting？（）A
When a new log group is added， it would have one member in each disk group.B
When a new log group is added， it would have two members in each disk group.C
When a new tablespace is added， it would have one data file in each disk group.D
When a new log file is added， it would have one member spread across the disk groups.
考题
单选题Consider the following command to create a tablespace in your production database （which is using an Automatic Storage Management [ASM] instance to manage the database files）： CREATE TABLESPACE user_tbsp DATAFILE ’+dgroup3 （usder_temp） /user_files/user_tbsp’ SIZE 200M； What would be the result of this command？（）A
It would result in an error because the template cannot be used along with the disk group.B
It would result in an error because the path cannot be specified while creating a tablespace in a disk group.C
It would create a tablespace with a data file that has an alias， and its attributes are set by the user-defined template.D
It would create a tablespace with a data file that does not have an alias， and its attributes are set by the user-defined template.
考题
单选题You are maintaining a database of credit card transactions. You want the data to be returned automatically in the chronological order of the credit card numbers without using the ORDER BY clause in the query. Which type of cluster will you use to obtain the desired result？（）A
Hash clusterB
Index clusterC
Sorted hash clusterD
Real Application cluster
考题
单选题From the V$SESSION_LONGOPS view， you find that some of the database users have long-running queries that consume a lot of CPU time. This causes performance problems for other users in the database， who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time， but you still do not want to terminate them with an error message. Which method would you follow to achieve this？（）A
set the CPU time per call in the users profileB
set the CPU time per session in the users profilesC
set the TIMED_STATISTICS parameter to TRUE in the parameter fileD
set the CPU levels for the users’ group using Resource Manager
考题
单选题You have created an Oracle 10g database named SALES， which will be used by an application named SalesOrders. Users of the SalesOrders application complain that application response time is slow when they generate reports. The SalesOrders application accesses a table that contains 10 million rows. You decide to create an index on this table using the NOLOGGING option so that the index creation process is completed in the least amount of time. Which of the following is NOT true about an index created with the NOLOGGING option？（）A
The index can be changed from NOLOGGING to LOGGINGB
The index cannot be recovered even in the ARCHIVELOG mode.C
The index can only be created if the base table is created with the NOLOGGING option.D
The index can be recovered if you perform a backup after the CREATE INDEX statement.
考题
单选题You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）A
You must configure OMF in your database.B
You must enable block change tracking feature in your database.C
You must enable ROW MOVEMENT feature on the ORDERS table.D
You must use the Flashback Version Query before using the Flashback Table feature.
考题
单选题The size of the largest datafile， data1.dbf， in your database is 30MB. You issued the following command： RMANCONFIGURE MAXSETSIZE 10MB； What will be the impact of the above setting？（）A
While performing the backup of the datafile，data1.dbf，one backup set is created.B
While performing the backup of the datafile，data1.dbf，two backup sets are created.C
While performing the backup of the datafile，data1.dbf，three backup sets are created.D
While performing the backup of the datafile，data1.dbf，the command for performing a backup of the datafile，data1.dbf，will fail.
考题
单选题You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）A
Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
考题
单选题Your database operates in ARCHIVELOGmode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN RUN { 2 SET UNTIL SEQUENCE 230 THREAD 1； 3 ALTER DATABASE MOUNT； 4 RESTORE DATABASE； 5 RECOVER DATABASE； 6 ALTER DATABASE OPEN RESETLOGS； 7 }； With reference to this scenario， which statement is true？（）A
RMAN recovers up to log sequence 230， but not including 230.B
RMAN returns an error because the log sequence number mentioned in the command should be 229.C
RMAN returns an error because the log sequence number mentioned in the command may never be missing.D
RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.
考题
多选题In your production database， you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation， you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members. Which two actions would you take to improve the performance of the database server？（）Aincrease the size of the redo log bufferBincrease the number of redo log groupsCincrease the number of log writer processesDincrease the number of ARCn processesEchange the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location
考题
单选题The production database has been functional for the last seven days. Because of application requirements， some of the initialization parameters were changed during run time without any comments. You have been asked to find out the value of the parameters when the instance was started. Which source would you use to locate this information？（）A
fixed viewsB
the alert log fileC
the parameter fileD
the server parameter fileE
dynamic performance views
考题
单选题You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A
Memory AdvisorB
Segment AdvisorC
SQL Access AdvisorD
Automatic Workload Repository （AWR）E
Automatic Database Diagnostic Monitor （ADDM）
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