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.
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View the Exhibit and identify the component marked with a question mark. （）
A.Checkpoint （CKPT）
B.Process Monitor （PMON）
C.Archiver Processes （ARCn）
D.Recoverer Process （RECO）
E.Memory Manager process （MMAN）
Note the functionalities of various background processes：
1：Perform recovery at instance startup. SMON
2：Free the resources used by a user process when it fails. PMON
3：Cleanup the database buffer cache when a process fails. PMON
4：Dynamically register database services with listeners. PMON
5：Monitor sessions for idle session timeout. PMON
6：Cleanup unused temporary segments. SMON
7：Record the checkpoint information in control file. CKPT
Which option has the correct functionalities listed for a background process（）
A.Checkpoint （CKPT）： 1， 2， 5
B.System Monitor （SMON）： 1， 6
C.Process Monitor （PMON）： 4， 6， 7
D.Database Writer （DBWR）： 1， 3， 4
Note the following functionalities of various background processes：
1：Record the checkpoint information in data file headers. CKPT
2：Perform recovery at instance startup. SMON
3：Cleanup unused temporary segments. SMON
4：Free the resources used by a user process when it fails.
5：Dynamically register database services with listeners.
6：Monitor sessions for idle session timeout.
Which option has the correct functionalities listed for a background process（）
A.Archiver Process （ARCn）：1， 2，5
B.System Monitor Process （SMON）：1，4，5
C.Process Monitor Process （PMON）：4，5，6
D.Database Writer Process （DBWn）：1，3，4
A.Shared SQL Area will be allocated in the shared pool.
B.Shared SQL Area will be allocated when a session starts.
C.Shared SQL Area will be allocated in the large pool always.
D.Private SQL Area will be allocated in the Program Global Area （PGA） always.
E.Shared SQL Area and Private SQL Area will be allocated in the PGA or large pool.
F.The number of Private SQL Area allocations is dependent on the OPEN_CURSORS parameter.
These are points that describe the contents of different memory components:
1: Descriptive information or metadata about schema objects that are queried by using SQL statements
2: The run-time area for data manipulation language (DML) or data definition language (DDL) statements
3: Results of SQL queries and PL/SQL functions
4: Executable forms of SQL cursors, PL/SQL programs, and Java classes
5: The information necessary to reconstruct changes made to the database by a transaction
Which of these will be stored in theShared Poolif the necessary configurations are done（）
A.1 and 2
B.2 and 5
C.1，3，and 4
D.3，4，and 5
E.1，2，3，and 4
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_SIZE NAME TYPE VALUE
------------------- ----------- ------------------
db_cache_size big integer 4194304 （4M）
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
A.The buffer is currently being accessed.
B.The buffer is empty and has not been used.
C.The contents of the buffer have changed and must be flushed to the disk by the DBWn process.
D.The buffer is a candidate for immediate aging out and its contents are synchronized with the block contents on the disk.
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）
Examine the following statement that is used to modify the constraint on the SALES table： SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE；
Which three statements are true regarding the above command（）
A.The constraint remains valid.
B.The index on the constraint is dropped.
C.It allows the loading of data into the table using SQL*Loader.
D.New data conforms to the constraint， but existing data is not checked
E.It allows the data manipulation on the table using INSERT/UPDATE/DELETE SQL statements.
View the Exhibit and examine the privileges granted to the SL_REP user.
The EMP table is owned by the SCOTT 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（）
A.The command executes successfully.
B.The command produces an error because the EMP table is owned by SCOTT.
C.The command produces an error because SL_REP has the GRANT ANY OBJECT PRIVILEGE withoutADMIN_OPTION.
D.The command produces an error because SL_REP does not have the SELECT privilege withGRANT_OPTION on the EMP table.
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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（）
Automatic Shared Memory Management is disabled for your database instance. You realize that there arecases of SQL statements performing poorly because of repeated parsing activity， resulting in degradation ofperformance. What would be your next step to improve performance（）
You want to configure and schedule offline database backups to run automatically. Which tool or utility wouldyou use to achieve this（）
Which statement is true about loading data using the conventional path of SQL*Loader（）
Which statements are true about checkpointing（）
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（）
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（）
After performing a clean shut down of the database instance for maintenance， you mount the database andthen execute a command to open the database：SQL> ALTER DATABASE OPEN；Which two statements are true（）
Which statements are true regarding listeners（）
Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace.Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）