1Z0-052 - Oracle Database 11g: Administration I

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Example Questions

Which two kinds of failures make the Data Recovery Advisor (DRA) generate a manual checklist? (Choose two.) You are using Enterprise Manager to schedule backups for your database. Which type of script would be generated by the backup scheduler? To make audit information more productive, the DBA executes the following command before starting an audit operation: SQL> ALTER SYSTEM SET AUDIT_TRAIL=DB,EXTENDED SCOPE=SPFILE; Which statement is true regarding the audit record generated when auditing starts after restarting the database? database, DEVDB, to the production database, PRODDB. A database link devdb.us.oracle.com is created between PRODDB and DEVDB. You execute the following command on the PRODDB database server: $ impdp system/manager directory = DB_DATA dumpfile = schemas.dat schemas = hr flashback_time = "TO_TIMESTAMP('25-08-2007 14:35:00', 'DD-MM-YYYY HH24:MI:SS')" The command fails displaying the following error: ORA-39001: invalid argument value ORA-39000: bad dump file specification ORA-31640: unable to open dump file "/home/oracle/schema/schemas.dat" for read ORA-27037: unable to obtain file status What would you do to overcome the error? In which of the scenario will the DBA perform recovery? (Choose all that apply.) You are in the middle of a transaction updating a very important table. The machine on which a database was running reboots because of power outage. This caused a database instance failure. Which statement is true in this situation? You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader direct path load method to perform this task. The table in which you plan to load data in an important table having various integrity constraint defined on it. Which constraints will remain enabled by default during this operation? (Choose all that apply.) In your database, the current status of a PL/SQL procedure has become INVALID. Which action would fix the problem and make the PL/SQL procedure usable? Your database instance is started using the server parameter file (SPFILE). You executed a command to change the value of the LOG_BUFFER initialization parameter: ALTER SYSTEM SET LOG_BUFFER=32M SCOPE=BOTH; What would be the outcome of this command? Which statements are true regarding the creation of an incident package file by using the EM Workbench Support? (Choose all that apply.) 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 are true regarding the above command? (Choose three.) Which three operations require undo data? (Choose three.) Your database instance is running with full workload after database creation. You have decided to use a fixedsize 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 undo tablespace? (Choose two.) For which database operation would you need the database to be in the MOUNT state? You are working on an instance started using the SPFILE. You want to move the Flash Recovery Area of your database to a new location. You want the Flashback log files to be stored in the new location. Given below are the steps to accomplish the task in random order: 1) Shut down the instance. 2) Change the value of the DB_RECOVERY_FILE_DEST initialization parameter to a new value. 3) Execute the ALTER DATABASE FLASHBACK OFF command. 4) Start up the instance and mount the database. 5) Execute the ALTER DATABASE FLASHBACK ON command. 6) Open the database. Select the correct order in which these tasks need to be performed. Examine the values for the following initialization parameters: FAST_START_MTTR_TARGET=0 LOG_CHECKPOINT_INTERVAL=0 Which two will be the implications of these values in your database? (Choose two.) Which two statements describe good practices for an application developer to reduce locking conflicts in Oracle database? (Choose two.) You are working on a new Oracle Database 11g server, where only the software is installed and no database is created. You plan to create a database on this server using the Database Configuration Assistant (DBCA). Some of the requirements set for your database creation task are: 1. Configure the database to operate in shared server mode. 2. Disable automatic maintenance tasks such as optimizer statistics collection. 3. Configure a naming method to help the remote user connect to the database instance. 4. Use Automatic Storage Management (ASM) for storing the database files. 5. Configure daily database backup to flash recovery area. 6. Configure Enterprise Manager Database Control to manage the database. Which of these requirements can be met while creating the database? You want to access employee details contained in flat files as part of the EMPLOYEE table. You plan to add a new column to the EMPLOYEE table to achieve this. Which data type would you use for the new column? You are managing an Oracle Database 11g database with the following backup strategy: 1. On Sunday, an incremental level 0 tape backup is performed 2. Monday through Saturday, a cumulative incremental level 1 tape backup is performed Which two statements are true regarding the backups performed? (Choose two.) You configured the Flash Recovery Area for your database. The database instance has been started in ARCHIVELOG mode and the LOG_ARCHIVE_DEST_1 parameter is not set. What will be the implications on the archiving and the location of archive redo log files? Identify two situations in which the block header grows in a data block. (Choose two.) Identify the memory component from which memory may be allocated for: Session memory for the shared serverBuffers for I/O slavesOracle Database Recovery Manager (RMAN) backup and restore operations You are managing an Oracle Database 11g database. The database is open, and you plan to perform Recovery Manager (RMAN) backups. Which three statements are true about these backups? (Choose three.) The session of user SCOTT receives the following error after executing an UPDATE command on the EMP table: ERROR at line 1: ORA-00060: deadlock detected while waiting for resource On investigation, you find that a session opened by user JIM has a transaction that caused the deadlock. Which two statements are true regarding the session of SCOTT in this scenario? (Choose two.) You have two database servers SEMP and SACCT. The database in the SEMP server maintains the employee information and the database in the SACCT server maintains the accounts payable information. The employees submit the expense reports to the accounts payable department. A user of the accounts payable database wants to extract the employee information from the database in the SEMP server for crossverification. Which schema object enables the user to access the information from the remote database? After performing a clean shut down of the database instance for maintenance, you mount the database and then execute a command to open the database: SQL> ALTER DATABASE OPEN; Which two statements are true? (Choose two.) Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener by using the command: LSNRCTL> STOP What happens to the sessions that are presently connected to the database instance? You execute this command to drop the ITEM table, which has the primary key referred in the ORDERS table: SQL> DROP TABLE scott.item CASCADE CONSTRAINTS PURGE; Which two statements are true about the effect of the command? (Choose two.) 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 runtime 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 the Shared Pool if the necessary configurations are done? You want to enable archiving on your database. Presently, the database is running in NOARCHIVELOG mode. Given below are the steps to accomplish the task in random order: 1. Shut down the instance. 2. Execute the ALTER DATABASE ARCHIVELOG command. 3. Start up the instance and mount the database. 4. Set the DB_RECOVERY_FILE_DEST initialization parameter to $ORACLE_HOME/dest_1. 5. Open the database. Which is the correct sequence of steps for accomplishing the task? In your database instance, the user sessions are connected to the database server from the remote machines. You want to achieve the following for these users: 1. The user account must be locked after four unsuccessful login attempts. 2. The user must be prompted to change the password at regular intervals. 3. The user may not have more than three simultaneous sessions. 4. The user session must automatically be logged off if more than 10 minutes elapsed time used. How would you accomplish the above? Note the functionalities of various background processes: 1: Perform recovery at instance startup. 2: Free the resources used by a user process when it fails. 3: Cleanup the database buffer cache when a process fails. 4: Dynamically register database services with listeners. 5: Monitor sessions for idle session timeout. 6: Cleanup unused temporary segments. 7: Record the checkpoint information in control file. Which option has the correct functionalities listed for a background process? You have a large amount of historical data in a flat file. Some analysts in your organization need to query this data in the file. The file is too large to load the data in it into your current database. Which is the most effective method to access this data in your database? Note the following structures in your database server: 1. Extents 2. OS Blocks 3. Tablespace 4. Segments 5. Oracle Data Block Which option has the correct arrangement of these structures from the smallest to the largest? You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader direct path load method to perform this task. The table in which you plan to load data is an important table having various integrity constraints defined on it. Which constraints will remain enabled by default during this operation? (Choose all that apply.) Examine the values for the following initialization parameters: FAST_START_MTTR_TARGET = 0 LOG_CHECKPOINT_INTERVAL = 0 Which two will be the implications of these values in your database? (Choose two.) Automatic Shared Memory Management (ASMM) has been enabled for your database instance. The initialization parameters for the components that are managed by ASMM are not set. After observing the effects of ASMM, you executed the following command: SQL> ALTER SYSTEM SET DB_CACHE_SIZE = 100M; Which statement is true in this scenario? The tnsnames.ora file has an entry for the service alias ORCL as follows: ORCL = ( DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.156.24.216)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl.oracle.com) ) ) The TNSPING command executes successfully when tested with ORCL, but you are not able to connect to the database instance with the following command: SQL> CONNECT scott/[email protected] What could be the reason for this? You are using flat files as the data source for one of your data warehousing applications. To optimize the application performance, you plan to move the data from the flat files to clustered tables in an Oracle database. While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into the Oracle database? You execute a command to resize a data file, sales.dbf, of size 200 MB in your database: ALTER DATABASE DATAFILE '/remorse/sales.dbf' RESIZE 150M; Which statement is true about this command? Which task would you perform before you run Oracle Universal Installer (OUI) in silent or suppressed mode for an installation? Your test database is configured to run in NOARCHIVELOG mode. One of the data files in the USERS tablespace is lost due to a media failure. You notice that all the online redo logs have been overwritten since the last backup. What would you do to recover the data file? You are working on a database that must be functioning 24 hours a day, 7 days a week. The database is configured in ARCHIVELOG mode. Which two options do you have for performing user-managed backups? (Choose two.) You have statistics collected for some selected tables. Your requirement is that the statistics for the tables and all dependent indexes must not be overwritten by further statistics collection until a certain point of time. How would you achieve this? In a system, large online transaction processing (OLTP) jobs run during the daytime that require a large database buffer cache. In the night, the system supports batch jobs that require a higher value to be set for the large pool. You must simultaneously configure the memory components to accommodate the peak requirement. What would you do to automate this configuration for the memory components with change in mode of working? Which of these is true about undo tablespace? Examine the command: SQL> ALTER USER skd ACCOUNT LOCK; Which two statements are true after the command is executed? (Choose two.) You have an ORDERS table with the following structure: Name Null? Type ------------------------- -------- ------------------------- OID NUMBER(6) ODATE DATE CCODE NUMBER(6) OAMT NUMBER(10,2) The table has data in the ODATE column for all rows. Many orders are placed in a single day. You need to ensure that the ODATE column must contain data for every order in future. Which method would serve the purpose? You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows: Warning (%): 90 Critical (%): 95 Which background process is responsible for issuing alerts when the threshold is crossed?

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