Oracle 1Z Oracle Database 10g New Features for Administrators. Download Full Version :

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1 Oracle 1Z0-040 Oracle Database 10g New Features for Administrators Download Full Version :

2 QUESTION: 190 Which statement correctly describes setup of a server-persistent parameter file (SPFILE) when used with Real Application Clusters? A. One SPFILE, created from a text parameter file (PFILE), is required for each instance B. You must create a separate text parameter file (PFILE) for each instance and merge them with the CREATIVE SPFILE FROM PFILE= ( list of files); command to create one common SPFILE C. You can add the instance-specific parameters to a common SPFILE with the ALTER SYSTEM?SCOPE=SPFILE SID=name ; command. D. One common SPFILE is required for all instances; it has a parameter INSTANCE_name_SPFILE, which in turn points to the instance-specific SPFILE Answer: C All instances in the cluster database use the same SPFILE at startup. Oracle recommends, you to use one shared server parameter file (SPFILE) with instance-specific entries. For example, you assign undo tablespaces in your RAC database by specifying a different value for the UNDO_TABLESPACE parameter for each instance in your SPFILE or individual PFILEs. REF. Oracle(r) 10g Database Oracle Clusterware and Oracle Real Application Clusters Guide, 5-7 QUESTION: 191 Which command meets these two criteria? 1 Runs the backup at full speed 2 Either finishes the task in the allotted time, or terminates Recovery Manager (RMAN) with an error if it fails to finish the task in the allotted time. A. RMAN> BACKUP AS COPY DURATION 300 MINIMIZE LOAD DATABASE; B. RMAN> BACKUP AS COPY DURATION 300 MINIMIZE TIME DATABASE; C. RMAN> BACKUP AS COPY DURATION 300 PARTIAL MINIMIZE LOAD DATABASE; D. RMAN> BACKUP AS COPY DURATION 300 PARTIAL MINIMIZE TIME DATABASE; Answer: B 123

3 By default, when a BACKUP... DURATION command runs out of time before the backup completes, RMAN reports an error. (The effect of this is that if the command is running in a RUN block, the RUN block terminates.) You can control this behavior by adding the PARTIAL option to the BACKUP... DURATION command, as in this example BACKUP DURATION 400 PARTIAL TABLESPACE users FILESPERSET 1; When PARTIAL is used, no error is reported when a backup command is interrupted due to the end of the backup window. Instead, a message showing which files could not be backed will be displayed. If the BACKUP command is part of a RUN block, then the remaining commands in the RUN block will continue to execute. When using DURATION you can run the backup with the maximum possible performance, or run as slowly as possible while still finishing within the allotted time, to minimize the performance impact of backup tasks. To extend the backup to use the full time available, use the MINIMIZE LOAD option, REF. Oracle(r) 10g Backup and Recovery Guide, 2-40 and 2-41 QUESTION: 192 Exhibit Which two statements regarding the result of the query shown in the Exhibit are correct? (Choose two.) A. The LAST_SCN value in the first row is NULL which means that version of the row still exists at SCN

4 B. The LAST_SCN value in the second row is NULL which means that version of the row still exists at SCN C. The LAST_SCN value in the second row is NULL which means that version of the row no longer exists because it was deleted D. The LAST_SCN value in the third row is which means that version of the row exists above SCN Answer: A, C VERSIONS_STARTSCN or VERSIONS_STARTTIME Starting SCN and TIMESTAMP when row took on this value. The value of NULL is returned if the row was created before the lower bound SCN or TIMESTAMP. VERSIONS_ENDSCN or VERSIONS_ENDTIME Ending SCN and TIMESTAMP when row last contained this value. The value of NULL is returned if the value of the row is still current at the upper bound SCN ot TIMESTAMP. VERSIONS_XID - ID of the transaction that created the row in it's current state. VERSIONS_OPERATION - Operation performed by the transaction ((I)nsert, ( U)pdate or (D)elete) REF. Metalink Note Flashback Version Query & Flashback Transaction Query - Oracle 10G Enhancement QUESTION: 193 A query on the sales table returned the following error Tue May Some indexes or index [sub]partitions of table SCOTT. SALES have been marked unusable. Which statement caused this error to be returned when you issued the query? A. DELETE FROM sales; B. UPDATE sales SET prod_status='sold' WHERE prod_cat='pens'; C. ALTER TABLE sales MOVE PARTITIONsal_ql TABLESPACE EXAMPLE; D. ALTER TABLE sales MOVE PARTITION sal_q1 TABLESPACE EXAMPLE UPDATE INDEXES; Answer: C The statement ALTER TABLE sales MOVE PARTITION sal_q1 TABLESPACE EXAMPLE, won't have a UPADATE INDEXES clause. By default, many table maintenance operations on partitioned tables invalidate (mark UNUSABLE) the corresponding indexes or index partitions. 125

5 You must then rebuild the entire index or, in the case of a global index, each of its partitions. The database lets you override this default behavior if you specify UPDATE INDEXES in your ALTER TABLE statement for the maintenance operation. Specifying this clause tells the database to update the index at the time it executes the maintenance operation DDL statement. REF. Oracle(r) 10g Administrator Guide, QUESTION: 194 You set SGA parameters in your database as DB_CACHE_SIZE=24MB JAVA_POOL_SIZE=48MB SHARED_POOL_SIZE=96MB You plan to upgrade to Oracle Database 10g. You need to provide an additional 20 MB memory space to accommodate internal overhead allocations for metadata. Which SGA parameter(s) would you modify? A. change JAVA_POOL SIZE to 68MB B. change DB_CACHE_SIZE to 44MB C. change SHARED_POOL_SIZE to 116MB D. change JAVA_POOL_SIZE to 58MB and DB_CACHE_SIZE to 34MB E. change SHARED_POOL_SIZE to 106MB and DB_CACHE_SIZE to 34MB Answer: C The SHARED_POOL_SIZE initialization parameter is a dynamic parameter that lets you specify or adjust the size of the shared pool component of the SG A. Oracle Database selects an appropriate default value. Starting with Oracle Database 10 g Release 1, the size of internal SGA overhead is included in the user-specified value of SHARED_POOL_SIZE. In other words, if you are not using the automatic shared memory management feature, then the amount of shared pool memory that is allocated at startup is exactly equal to the value of SHARED_POOL_SIZE initialization parameter. In manual SGA mode, this parameter must be set so that it includes the internal SGA overhead in addition to the desired value of shared pool size. REF. Oracle(r) 10g Administrator Guide, 2-31 QUESTION: 195 What does the Character Set Scanner command line utility do? A. reports only on any Unicode character conversions required 126

6 B. performs character set conversions to the new specified characterset C. scans on any character set conversion required, then converts the data D. checks for any character definitions that will fail conversion to the new characterset Answer: D The character set scanner (csscan) allows the users to evaluate the impact of migrating an existing database to a new character set or to check if a database contains codepoints outside the current character set (from V1.1 onwards). The tool scans the data in the database including the data dictionary and provides an analysis of the current data, highlighting data which will be converted when migrated to the new database character set or what data is incorrectly stored in the database.these findings are summarized in the database scan summary report and individual exception report. REF. Metalink Note Availability & versioning of the Character Set Scanner QUESTION: 196 An AFTER SUSPEND system event trigger containing no exception handler is fired, and runs out of space after inserting some audit records. Which two events happen? (Choose two.) A. The trigger is aborted B. The trigger is recursively fired C. The original operation (the one that fired the trigger) continues D. The original operation (the one that fired the trigger) is aborted Answer: A, D Different parallel execution server processes may encounter one or more correctable errors. This may result in firing an AFTER SUSPEND trigger multiple times, in parallel. Also, if a parallel execution server process encounters a non-correctable error while another parallel execution server process is suspended, the suspended statement is immediately aborted. If the user registered a trigger on the AFTER SUSPEND system event, the user trigger is executed. A user supplied PL/SQL procedure can access the error message data using the DBMS_RESUMABLE package and the DBA_ or USER_RESUMABLE view. REF. Oracle(r) 10g Administrator Guide, 14-9 and QUESTION:

7 Automatic Consumer Group Switching is an important new feature of the Database Resource Manager. Which three plan directive parameters are used to control this feature? (choose three) A. SWITCH_TIME B. SWITCH_GROUP C. MAX_SESS_POOL D. SWITCH_ESTIMATE Answer: A, B, D The SWITCH_CONSUMMER_GROUP_FOR_SESS causes the specified session to immediately be moved into the specified resource consumer group. In effect, this statement can raise or lower priority. SWITCH_GROUP Specifies consumer group to which this session is switched if other switch criteria are met. If the group name is 'CANCEL_SQL', then the current call will be canceled when other switch criteria are met. If the group name is 'KILL_SESSION', then the session will be killed when other switch criteria are met. Default is NULL. SWITCH_TIME Specifies time (in seconds) that a session can execute before an action is taken. Default in UNLIMITED. You cannot specify both SWITCH_TIME and SWITCH_TIME_IN_CALL. SWITCH_ESTIMATE If TRUE, tells the database to use its execution time estimate to automatically switch the consumer group of an operation prior to beginning its execution. Default is FALSE. REF. Oracle(r) 10g Administrator Guide, QUESTION: 198 Which Oracle-supplied package is used by Data Pump Export and Import worker processes to load and unload metadata information? A. DBMS_STREAMS_DATAPUMP_UTIL B. DBMS_METADATA_UTIL C. DBMS_METADATA D. DBMS_STREAMS_DATAPUMP E. DBMS_DATAPUMP Answer: C 128

8 QUESTION: 199 Consider the following configuration /devices/d1 is a member of disk group dgroupa. /devices/d2 is a member of disk group dgroupa. /devices/d3 is a member of disk group dgroupa. You plan to add a new disk, /devices/d4, to the disk group dgroupa and execute the following command SQL> ALTER DISKGROUP dgroupa ADD DISK '/devices/d*'; Which task would be accomplished by the command? A. The command first detaches all the member disks starting with "D" and then reattaches all of them including the new disk. B. The command adds the new disk, D4, to the disk group. C. The command will be ignored because disks starting with "D" are already members of the disk group. D. The command would result in an error because there is no disk by the name " /devices/d* ". E. The command would result in an error because no wildcard characters can be used in the disk name. Answer: B QUESTION: 200 You set SGA parameters in your database as DB_CACHE_SIZE =24 MB JAVA_POOL_SIZE =48 MB SHARED_POOL_SIZE =96 MB You plan to upgrade to Oracle Database 10 g. You need to provide an additional 20 MB memory space to accommodate internal overhead allocations for metadata. Which SGA parameter(s) would you modify? A. change DB_CACHE_SIZE to 44 MB B. change SHARED_POOL_SIZE to 106 MB and DB_CACHE_SIZE to 34 MB C. change JAVA_POOL_SIZE to 58 MB and DB_CACHE_SIZE to 34 MB D. change JAVA_POOL_SIZE to 68 MB E. change SHARED_POOL_SIZE to 116 MB Answer: E 129

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