单项选择题

Identify the memory component from which memory may be allocated for:()
1. Session memory for the shared server
2. Buffers for I/O slaves
3. Oracle Database Recovery Manager (RMAN) backup and restore operations

A.Large Pool
B.Redo Log Buffer
C.Database Buffer Cache
D.Program Global Area (PGA)


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5.多项选择题Which two statements about the background process of the database writer are true()

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

6.单项选择题

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

7.单项选择题

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

9.单项选择题

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

10.单项选择题

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

最新试题

You want to configure and schedule offline database backups to run automatically. Which tool or utility wouldyou use to achieve this()

题型:单项选择题

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()

题型:单项选择题

In which situation is the UNDO_RETENTION parameter be ignored, even if it is set to a value()

题型:单项选择题

The session of user SCOTT receives the following error after executing an UPDATE command on the EMPtable:ERROR at line 1:ORA-00060: deadlock detected while waiting for resource On investigation, you find that a session opened byuser JIM has a transaction that caused the deadlock. Which two statements are true regarding the session ofSCOTT in this scenario()

题型:多项选择题

Examine the following statement that is used to modify the primary key constraint on the SALES table:SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE;Which three statements aretrue regarding the above command()

题型:多项选择题

Which statement is true about loading data using the conventional path of SQL*Loader()

题型:单项选择题

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()

题型:单项选择题

Which  kinds of failures make the Data Recovery Advisor (DRA) generate a manual checklist?()

题型:多项选择题

View the Exhibit and examine the attributes of an undo tablespace. In an OLTP system, the user SCOTT hasstarted a query on a large table in the peak transactional hour that performs bulk inserts. The query runs formore than 15 minutes and then SCOTT receives the following error:ORA-01555: snapshot too oldWhat could be the reason for this error()

题型:单项选择题

Which  statements are true about checkpointing()

题型:多项选择题