The TRANS_SUMMARY table contains product-wise transaction details that get updated with every transactionin the system. Each row has cumulative transaction details of a single product and every product is identified bya product code， which is the primary key.As part of the archival process， the company wants to transfer therows in the TRANS_SUMMARY table to the TRANS_SUMMARY_DUP table at the end of every quarter of theyear. Along with existing products， the company deals with many new products during every quarter.
Whichmethod is best suited for this quarterly data transfer（）
A.Using the MERGE command
B.Using the SQL*Loader utility
C.Using the correlated UPDATE command
D.Using the INSERT command to perform bulk operation
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A.It is possible to have multiple database writers in an Oracle instance.
B.It writes dirty buffers， if any， to data files whenever a checkpoint occurs.
C.It writes dirty buffers， if any， to data files whenever a transaction commits.
D.It writes dirty buffers， if any， to data files before the log writer （LGWR） writes
To make audit information more productive， the DBA executes the following command before starting an auditoperation：
SQL> ALTER SYSTEM SET AUDIT_TRAIL=DB，EXTENDED SCOPE=SPFILE；
Which statement is true regarding the audit record generated when auditing starts after restarting Thedatabase（）
A.It contains only the plan for the SQL statement executed by the user.
B.It contains the SQL text executed by the user and the bind variables used with it.
C.It contains the plan and statistics associated with the SQL statement executed by the user.
D.It contains the plan for the SQL statement executed by the user and the bind variables used with it
View the Exhibit. You want to create a tablespace to contain objects with block size 16 KB. But while
configuring the storage you find that the block size that you can provide is only 8 KB.
Which configuration couldhave enabled the block selection of 16 KB（）
A.Choosing the extent allocation type to uniform
B.Choosing the Segment Space Management option to manual
C.Setting autoextension on for the data file mentioned for the tablespace
D.Setting the DB_16K_CACHE_SIZE parameter for the database instance to a nonzero value
You have issued a SHUTDOWN ABORT command to bring down your database instance. Consider the stepsthat will be performed later when you open the database：
1. SGA is allocated.
2. Control file is read.
3. Redo log files are read.
4. Instance recovery is started.
5. Background processes are started.
6. Data files are checked for consistency.
7. Server parameter file or the initialization parameter file is read.
Which option has the correct order in which these steps occur（）
A.7， 1， 5， 2， 3， 6， 4
B.1， 2， 3，7， 5， 6， 4
C.7， 1， 4， 5， 2， 3， 6
D.1， 7， 5， 4， 2， 3， 6
The instance abnormally terminates because of a power outage.
Which statement is true about redo log filesduring instance recovery（）
A.Inactive and current redo log files are required to accomplish recovery.
B.Online and archived redo log files are required to accomplish instance recovery.
C.All redo log entries after the last checkpoint are applied from redo log files to data files.
D.All redo log entries recorded in the current redo log file until the checkpoint position are applied to data files
Examine the command：
SQL> DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’， ’false’）；
Which statementdescribes the effect of the above command（）
A.Automatic statistics collection is stopped for the CUSTOMERS table.
B.Statistics for the CUSTOMERS table are locked and cannot be overwritten.
C.Existing statistics for the CUSTOMERS table become unusable for the query optimizer.
D.Subsequently， statistics gathered on the CUSTOMERS table are stored as pending statistics
You are installing Oracle Database 11g on a machine. When you run the installer， the Oracle Universal Installer（OUI） shows the message that says one of the product-specific prerequisite checks has failed：Checking available swap space requirements ...Expected result： 1512MBActual Result： 1018MB
Check complete. The overall result of this check is： Failed <<<< Problem： The system does not have therequired swap space.
What happens to the installation in this situation（）
A.It can be continued.
B.It resizes the swap space automatically when you proceed further.
C.It can be continued， but the instance cannot be started without increasing the swap space.
D.It shows a message saying one or more prerequisite checks have failed and the installation cannot proceed
You are installing Oracle Database 11g on your server. During the installation Oracle Universal Installer （OUI）
prompts you to enter the path of the inventory directory and also prompts you to specify an operating systemgroup name.
Which statement is true in this case（）
A.The ORACLE_BASE parameter is not set.
B.The installation is being performed by the root user.
C.The operating system group that will be specified should have root user as its member.
D.The installation is being performed without the "Create Starter Database" option selected.
E.The operating system group that will be specified must have permission to write to the inventory directory
You want to create a role to meet these requirements：
1. The role is to be protected from unauthorized usage.
2. The password of the role is not to be embedded in the application source code or stored in a table.
method would you use to restrict enabling of such roles（）
A.Create the role with external authentication.
B.Create the role as a secure application role.
C.Create the role as a password-protected role.
D.Create a role and use Fine-Grained Access Control （FGAC） to secure the role
You have executed this command to change the size of the database buffer cache：
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=2516582；
System altered. To verify the change in size， you executed this command：SQL> SHOW PARAMETER DB_CACHE_SIZENAME TYPE VALUE
------------------- ----------- ------------------ db_cache_size big integer 4194304
Why is the value set to 4194304 and not to 2516582（）
A.Because 4194304 is the granule size
B.Because 4194304 is the standard block size
C.Because 4194304 is the largest nonstandard block size defined in the database
D.Because 4194304 is the total size of data already available in the database buffer cache
最新试题
Why does performance degrade when many UPDATE， INSERT， or DELETE statements are issued on a tablethat has an associated Bitmap index（）
Which statements are true regarding listeners（）
Identify the situations in which you use the alert log file in your database to check the detail.（）
Which statements are correct about temporary tables（）
In a new installation of Oracle Database 11g， you perform these activities：1. Organize software and data on different subdirectories to avoid poor performance.2. Use consistent naming conventions for database files.3. Separate administrative information pertaining to the database in different directories. Which optioncorresponds to the type of activities you performed（）
View the Exhibit and examine the privileges granted to the SL_REP user. The EMP table is owned by theSCOTT user. The SL_REP user executes the following command：SQL> GRANT SELECT ON scott.emp TO hr；Which statement describes the outcome of the command（）
All the database users are presently connected to the database instance and working. The HR user hasopened three database sessions and executed the following command in one of his sessions：SQL> UPDATE persons SET ccode=’U031’ WHERE ccode=’U029’； 123 rows updated.SQL> DELETE FROM persons WHERE exp=’Y’；3 rows deleted.The SYS user opens a new session after HR executed the above commands. Which sessions can see theeffect of the UPDATE and DELETE commands（）
You are working on a database that must be functioning 24 hours a day， 7 days a week. The database isconfigured in ARCHIVELOG mode. Which two options do you have for performing user-managed backups（）
You execute the following command to change the status of the SALES tablespace：SQL> ALTER TABLESPACE sales OFFLINE；Which statements describe the effect of the command（）
Examine the command that is used to create a table：SQL> CREATE TABLE orders（oid NUMBER（6） PRIMARY KEY， odate DATE， ccode NUMBER （6）， oamtNUMBER（10，2）） TABLESPACE users；Which two statements are true about the effect of the above command（）