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In which scenario do you use the Flashback Database feature？（）

A. when a table is dropped and you restore it from the Recycle Bin
B. when a user’s schema is dropped and you recover the user’s schema
C. when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestamp
D. when a row of a table is updated frequently and committed， and you view all the versions of the row within a specific duration

單項(xiàng)選擇題

You are creating the simple resource plan using the DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN procedure. Which resource allocation policy will be used for the resource plan？（）

A. RATIO
B. EMPHASIS
C. ACTIVE_SESS_POOL_MTH
D. RESOURCE_DEGREE_LIMIT_ABSOLUTE

單項(xiàng)選擇題

Using Oracle Scheduler you have scheduled two jobs， JOB_Aand JOB_B， to run at 9：00 p.m. every Friday. You want both the jobs to use a single resource plan， WEEKEND_PLAN. Which task must have already been performed to enable you to achieve this objective？（）

A. A window must have been created with the WEEKEND_PLAN resource plan.
B. A program must have been created with the WEEKEND_PLAN resource plan.
C. A job class must have been created with the WEEKEND_PLAN resource plan.
D. A window group must have been created with the WEEKEND_PLAN resource plan.

單項(xiàng)選擇題

You work as a database administrator at Certkiller .com. You are working in an online transaction processing （OLTP） environment. You realize that the salary for an employee， John， has been accidentally modified in the EMPLOYEEStable. Two days ago， the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected？（）

A. perform point-in-time recovery
B. perform a Flashback Table operation to restore the table to the state it was in two days ago
C. perform a Flashback Database operation to restore the database to the state it was in two days ago
D. perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery

單項(xiàng)選擇題

Your Oracle10g database contains a table with a TIMESTAMP TO LOCAL TIME ZONE column. There are about two hundred column values for the column. You issued the following statement： SQL> ALTER DATABASE SET TIME_ZONE =’Europe/London’； What will be the result of issuing the above statement？（）

A. The statement will be executed successfully， and a new time zone will be set for the database.
B. The statement will be executed successfully， but a new time zone will not be set for the database.
C. The statement will not be executed successfully because the SET TIME_ZONE clause can be used only with the ALTER SESSION statement.
D. The statement will not be executed successfully because the ALTER DATABASE SET TIME_ZONE statement is used only when the database contains no table with the TIMESTAMP TO LOCAL TIME ZONE column.

單項(xiàng)選擇題

You create an Oracle 10g database and configure the SPFILE as follows： SGA_TARGET=2G DB_CACHE_SIZE=512M LOG_BUFFER=50M DB_KEEP_CACHE_SIZE=128M You modify the SGA_TARGET initialization parameter using the following statement： SQL>ALTER SYSTEM SET SGA_TARGET = 1G SCOPE = BOTH； Which entity does this statement affect？（）

A. only the auto-tuned memory components
B. only the memory components that are not auto-tuned
C. both the auto-tuned memory components and the non-auto-tuned memory components
D. neither the auto-tuned memory components nor the non-auto-tuned memory components

多項(xiàng)選擇題

You are connected to Recovery Manager （RMAN） without a recovery catalog. There is no copy of the control file available. You want to restore the control file from an autobackup. To retrieve the autobackup， you need the database ID （DBID）. In which two sources would you find the DBID？（）

A. the alert log file
B. the server parameter file
C. the formatted name of a control file autobackup
D. an RMAN session log file
E. the trace file

單項(xiàng)選擇題

There was media failure and you need to check the data files for any block corruption. Which option would you use to create a report on any corruptions found within the database？（）

A.the DBNEWID utility
B.the DBVERIFY utility
C.the ANALYZE command
D.the RMAN REPORT command
E.the RMAN CROSSCHECK command
F.the CHECK_OBJECT procedure of the DBMS_REPAIR package

單項(xiàng)選擇題

You have a disk group， DGROUP1， with three disks and NORMAL redundancy. You execute the following command to create a template for the disk group： ALTER DISKGROUP dgroup1 ADD TEMPLATE my_temp ATTRIBUTES （MIRROR FINE）； Which statement is true？（）

A.When a file is created in DGROUP1 with the template， it would have three-way mirroring.
B.When a file is created in DGROUP1， the MY_TEMP template becomes the default template.
C.When a file is created in DGROUP1 with the template， it would have two-way mirroring and file striping.
D.When a file is created in DGROUP1 with the template， it would have three-way mirroring and file striping.
E.When a file is created in DGROUP1 with the template， it would have two-way mirroring but no file Striping.

單項(xiàng)選擇題

You work as a database administrator at Certkiller .com. Your production database uses an Automatic Storage Management （ASM） instance to manage its files. You want to add a new disk group to the ASM instance to manage the increased data load. What action would you perform to include the new disk group in the ASM instance without causing any impact on the currently connected users？（）

A. mount the new disk group in the ASM instance
B. restart the ASM instance and the production database instance
C. register the new disk groups in the production database instance
D. restart the ASM instance without restarting the production database instance
E. include the new disk group in the ASM_DISKSTRING parameter in the parameter file and restart the ASM instance

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1z0-043章節(jié)練習(xí)(2019.04.26)

In which scenario do you use the Flashback Database feature？（）

You are creating the simple resource plan using the DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN procedure. Which resource allocation policy will be used for the resource plan？（）

Using Oracle Scheduler you have scheduled two jobs， JOB_Aand JOB_B， to run at 9：00 p.m. every Friday. You want both the jobs to use a single resource plan， WEEKEND_PLAN. Which task must have already been performed to enable you to achieve this objective？（）

There was media failure and you need to check the data files for any block corruption. Which option would you use to create a report on any corruptions found within the database？（）

You have a disk group， DGROUP1， with three disks and NORMAL redundancy. You execute the following command to create a template for the disk group： ALTER DISKGROUP dgroup1 ADD TEMPLATE my_temp ATTRIBUTES （MIRROR FINE）； Which statement is true？（）

1z0-043章節(jié)練習(xí)(2019.04.26)

In which scenario do you use the Flashback Database feature？（）

You are creating the simple resource plan using the DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN procedure. Which resource allocation policy will be used for the resource plan？（）

Using Oracle Scheduler you have scheduled two jobs， JOB_Aand JOB_B， to run at 9：00 p.m. every Friday. You want both the jobs to use a single resource plan， WEEKEND_PLAN. Which task must have already been performed to enable you to achieve this objective？（）

There was media failure and you need to check the data files for any block corruption. Which option would you use to create a report on any corruptions found within the database？（）

You have a disk group， DGROUP1， with three disks and NORMAL redundancy. You execute the following command to create a template for the disk group： ALTER DISKGROUP dgroup1 ADD TEMPLATE my_temp ATTRIBUTES （MIRROR FINE）； Which statement is true？（）

In which scenario do you use the Flashback Database feature？（）

You are creating the simple resource plan using the DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN procedure. Which resource allocation policy will be used for the resource plan？（）

Using Oracle Scheduler you have scheduled two jobs， JOB_Aand JOB_B， to run at 9：00 p.m. every Friday. You want both the jobs to use a single resource plan， WEEKEND_PLAN. Which task must have already been performed to enable you to achieve this objective？（）

There was media failure and you need to check the data files for any block corruption. Which option would you use to create a report on any corruptions found within the database？（）

You have a disk group， DGROUP1， with three disks and NORMAL redundancy. You execute the following command to create a template for the disk group： ALTER DISKGROUP dgroup1 ADD TEMPLATE my_temp ATTRIBUTES （MIRROR FINE）； Which statement is true？（）