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Q51. You executed the following query: 

SELECT oldest_flashback_scn, oldest_flashback_time 

FROM V$FLASHBACK_DATABASE_LOG; 

Considering that all the redo logs are available, what information can you derive from the output of the preceding query? 

A. The time when the last flashback operation in your database was performed 

B. The time when the first flashback operation in your database was performed C. The approximate time and the lowest system change number (SCN) to which you can flash back your database 

D. The system change number (SCN) and the time when the Flashback Database was enabled in the database instance 

Answer:

V$FLASHBACK_DATABASE_LOG displays information about the flashback data. Use this view to help estimate the amount of flashback space required for the current workload. 


Q52. Examine the following command that is used to duplicate a database on the same host: 

RMAN> RUN { ALLOCATE AUXILIARY CHANNEL aux 1 DEVICE TYPE DISK; DUPLICATE TARGET DATABASE TO auxdb SKIP READONLY; } 

Which two statements describe the effect after the database is duplicated successfully? (Choose two) 

A. The data files of the read-only tablespaces in the target database are not duplicated 

B. The read-only tablespaces in the target database are still defined in new the database 

C. The read-only tablespaces in the target database are changed to online after duplication 

D. The data files of the read-only tablespaces in the target database get duplicated 

E. The read-only tablespaces in the target database are not defined in the new database 

Answer: A,B 


Q53. View the Exhibit and examine the parameter settings in your server-side parameter file (SPFILE). When you tried to start the database instance, you received the following error: 

SQL> startup ORA-00824: cannot set SGA_TARGET or MEMORY_TARGET due to existing internal settings, see alert log for more information 

Why did the instance fail to start? 

Exhibit: 

A. Because the PGA_AGGREGATE_TARGET parameter is not set 

B. Because the STATISTICS_LEVEL parameter is set to BASIC 

C. Because MEMORY_TARGET and MEMORY_MAX_TARGET cannot be equal 

D. Because both the SGA_TARGET and MEMORY_TARGET parameters are set. 

Answer:

Setting SGA Target Size You enable the automatic shared memory management feature by setting the SGA_TARGET parameter to an on zero value. This parameter sets the total size of the SGA. It replaces the parameters that control the memory allocated for a specific set of individual components, which are now automatically and dynamically resized (tuned) as needed. 

Note: 

The STATISTICS_LEVEL initialization parameter must be set to TYPICAL (the default) or ALL for automatic shared memory management to function. 


Q54. What happens when you run the SQL Tuning Advisor with limited scope? 

A. Access path analysis is not performed for SQL statements. 

B. SQL structure analysis is not performed for SQL statements. 

C. SQL Profile recommendations are not generated for SQL statements. 

D. Staleness and absence of statistics are not checked for the objects in the query supplied to the SQL Tuning Advisor. 

Answer:


Q55. Note the following parameter settings: Which setting is NOT allowed? 

A. ALTER SYSTEM SET DB_CACHE_SIZE=50M; 

B. ALTER SYSTEM SET DB_8K_CACHE_SIZE=10M; 

C. ALTER SYSTEM SET DB_4K_CACHE_SIZE=10M; 

D. ALTER SYSTEM SET DB_16K_CACHE_SIZE=10M; 

Answer:


Q56. View the Exhibit to observe the error. 

You receive this error regularly and have to shutdown the database instance to overcome the error. AutomaticShared Memory Management is configured for the instance. 

What can you do to reduce the chance of this error in the future? 

A. Increase the value of SGA_MAX_SIZE 

B. Enable automatic memory management 

C. Set the PRE_PAGE_SGA parameter to true 

D. Lock the System Global Area (SGA) in memory 

Answer:

ORA-04031: unable to allocate string bytes of shared memory ("string","string","string","string") Cause: More shared memory is needed than was allocated in the shared pool or Streams pool. Action: If the shared pool is out of memory, either use the DBMS_SHARED_POOL package to pin largepackages, reduce your use of shared memory, or increase the amount of available shared memory byincreasing the value of the initialization parametersSHARED_POOL_RESERVED_SIZE andSHARED_POOL_SIZE. If the large pool is out of memory, increase the initialization parameterLARGE_POOL_SIZE. If the error is issued from an Oracle Streams or XStream process, increase theinitialization parameter STREAMS_POOL_SIZE or increase the capture or apply parameter MAX_SGA_SIZE. 


Q57. In your production database, users report that they are unable to generate reports on an important table because it does not contain any data. While investigating the reason, you realize that another user executed the TRUNCATE TABLE command, which accidentally caused the data to be lost. Now you want to recover the lost data of the table without affecting objects in other schemas. 

Which method must you use to recover the lost data? 

A. Complete Recovery with online redo log 

B. Complete Recovery with archived redo log 

C. Tablespace Point-in-Time Recovery (TSPITR) 

D. Incomplete Recovery with system change number (SCN) 

Answer:


Q58. The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. 

Which statement is true while performing a tape backup in an RMAN session? 

A. The tape I/O performed is asynchronous 

B. The tape buffer is allocated from the System Global Area (SGA) 

C. The tape buffer is allocated from the Program Global Area (PGA) 

D. Oracle I/O uses an interrupt mechanism to determine when each I/O completes 

Answer:

Tape I/O Slaves RMAN allocates the tape buffers in the System Global Area (SGA) or the Program Global Area (PGA),depending on whether I/O slaves are used. If you set the initialization parameter BACKUP_TAPE_IO_SLAVES=true, then RMAN allocates tape buffers from the SGA. Tape devices can only beaccessed by one process at a time, so RMAN starts as many slaves as necessary for the number of tapedevices. If the LARGE_POOL_SIZE initialization parameter is also set, then RMAN allocates buffers from thelarge pool. If you set BACKUP_TAPE_IO_SLAVES=false, then RMAN allocates the buffers from the PGA. If you use I/O slaves, then set the LARGE_POOL_SIZE initialization parameter to dedicate SGA memory toholding these large memory allocations. This parameter prevents RMAN I/O buffers from competing with thelibrary cache for SGA memory. If I/O slaves for tape I/O were requested but there is not enough space in theSGA for them, slaves are not used, and a message appears in the alert log. The parameter BACKUP_TAPE_IO_SLAVES specifies whether RMAN uses slave processes rather than thenumber of slave processes. Tape devices can only be accessed by one process at a time, and RMAN uses thenumber of slaves necessary for the number of tape devices. 


Q59. Your database initialization parameter file has the following entry: 

SEC_MAX_FAILZD_LOGIN_ATTEMPTS=3 

Which statement is true regarding this setting? 

A. It drops the connection after the specified number of login attempts fail for any user. 

B. It is enforced only if the password profile is enabled for the user. 

C. It locks the user account after the specified number of attempts. 

D. It drops the connection after the specified number of login attempts fail only for users who have the SYSDBAprivilege. 

Answer:


Q60. You plan to use Flashback Drop feature to recover a dropped table SALES_EMP. No other table with the same name exists in the schema. 

You query RECYCLEBIN and find multiple entries for the SALES_EMP table as follows: You then issue the following statement to recover the table: 

SQL> SELECT object_name, original_name, droptime FROM recyclebin; 

What would be the outcome of the precedent statement? 

A. It retrieves the latest version of the table from the recycle bin 

B. It retrieves the oldest version of the table from the recycle bin 

C. It retrieves the version of the table for which undo information is available 

D. It returns an error because the table name is not specified as per the names in the OBJECT_NAME column 

Answer: