You are connected to a pluggable database (PDB) as a common user with DBA privileges.
The STATISTICS_LEVEL parameter is PDB_MODIFIABLE. You execute the following: SQL
> ALTER SYSTEM SET STATISTICS_LEVEL = ALL SID = ‘*’ SCOPE = SPFILE; Which is
true about the result of this command?
A.
The STATISTICS_LEVEL parameter is set to all whenever this PDB is re-opened.
B.
The STATISTICS_LEVEL parameter is set to ALL whenever any PDB is reopened.
C.
The STATISTICS_LEVEL parameter is set to all whenever the multitenant container
database (CDB) is restarted.
D.
Nothing happens; because there is no SPFILE for each PDB, the statement is ignored.
The answer shows it to be A .
SQL> ALTER SESSION SET CONTAINER = db12cp;
Session altered.
SQL> ALTER SYSTEM SET STATISTICS_LEVEL = ALL SID = ‘*’ SCOPE = SPFILE;
System altered.
SQL> show parameters STATISTICS_LEVEL
NAME TYPE VALUE
———————————— ———– ——————————
statistics_level string TYPICAL
SQL> startup force
Pluggable Database opened.
SQL> show parameters STATISTICS_LEVEL
NAME TYPE VALUE
———————————— ———– ——————————
statistics_level string ALL
SQL> sho con_id
CON_ID
——————————
3
A
New 1Z0-062 Exam Questions and Answers Updated Recently (21/Feb/2017):
NEW QUESTION 211
Your database instance has the following parameter setting:
OS_AUTHENT_PREFIX = OPS$
You execute the following command:
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And then grantOPS$GUEST_USER the CREATE SESSION privilege. Which two statements are true?
A. GUEST_USER can query the tables created in the USERS tablespace by default.
B. The authentication details for GUEST_USER are stored in the database password file.
C. A local GUEST_USER OS account should exist before GUEST_USER can log on to the database.
D. GUEST_USER can log on to the database without specifying a username and password.
E. GUEST_USER is forced to change the password at the first login.
Answer: DE
NEW QUESTION 212
Your database is configured for ARCHIVELOG mode, and a daily full database backupis taken. RMAN is configured to perform control file autobackup. In which three scenarios do you need media recovery?
A. loss of all the copies of the control file
B. loss of all the inactive online redo log group members
C. loss of a data file that belongs to the active undo tablespace
D. loss of data files that belong to the SYSTEM tablespace
E. logical corruption of data that is caused by a wrong transaction
F. abnormal termination of the database instance
Answer: ABC
NEW QUESTION 213
Your database has been running with a peak load for the past hour. You want to preserve the performance statistics collected during this period forcomparison when you analyze the performance of the database later. What must you do to achieve this?
A. Increase the window size of the moving window baseline so that it equals the Automatic Workload Repository (AWR) snapshot retention period.
B. Createa baseline on a pair of snapshots that span the peak load period.
C. Generate Active Session History reports for the peak load period.
D. Set the snapshot retention period in AWR to 60 to avoid automatic purging of snapshots for the past hour.
Answer: B
NEW QUESTION 214
Which three statements are true about space usage alerts?
A. Alerts are issued only when the critical threshold for space available in a tablespace is breached.
B. The sum of active extents and allocated user quotas is considered to compute space usage for an undo tablespace.
C. Databasealerts can provide warnings about low space availability at both tablespace and segment levels.
D. Alerts are not issued for locally managed tablespaces that are offline or in read-only mode.
E. A newly created locally managed tablespace is automatically assigned the default threshold values defined for a database.
Answer: ADE
NEW QUESTION 215
You use multiple temporary tables frequently in your database. Which two are benefits of configuring temporary undo?
A. Performance improves because less redo is writtento the redo log.
B. Temporary undo reduces the amount of undo stored in undo tablespaces.
C. Performance improves because data manipulation language (DML) operations performed on temporary tables do not use the buffer cache.
D. Performance improves because no redo and undo are generated for the temporary tables.
Answer: BD
NEW QUESTION 216
Which two statements are true about Oracle Data Pump export and import operations?
A. You cannot specify how partitioned tables shouldbe handled during an import operation.
B. Only data can be compressed during an export operation.
C. Existing dump files can be overwritten during an export operation.
D. Tables cannot be renamed during an import operation.
E. Metadata that is exported andimported can be filtered based on objects and object types.
Answer: DE
NEW QUESTION 217
Your database is running in NOARCHIVING mode. Examine the following parameters:
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You execute the following command after performing a STARTUP MOUNT:
SQL> ALTER DATABASE ARCHIVELOG;
Which statement is true about the execution of the command?
A. It executes successfully and sets the Fast Recovery Area as the local archive destination.
B. It executes successfully and issues a warning to set LOG_ARCHIVE_DEST while opening the database.
C. It fails and returns an error about LOG_ARCHIVE_DEST not being set.
D. It executes successfully and sets $ORACLE_HOME/dbs as the default archive destination.
Answer: C
NEW QUESTION 218
Your production database uses file system storage. You want to move storage to Oracle Automatic Storage Management (ASM). How would you achieve this?
A. by using a transportable database
B. by using the Database Upgrade Assistant (DBUA)
C. by using Data Pump
D. by using RMAN
Answer: D
NEW QUESTION 219
Which two statements are true about Oracle network connections?
A. A listener may listen on behalf of only one database instance at a time.
B. A server process checks a user’s authentication credentials and creates a session if the credentials are valid.
C. The listener continuously monitors a connection after the user process connects to a service handler.
D. The listener always spawns a new server process to deal with each new connection.
E. A connection request from a client is always first received by a listener running on the port that is used for the connection request for the database server.
Answer: BD
NEW QUESTION 220
Which two actions does an incremental checkpoint perform?
A. It signals CKPT to write thecheckpoint position to the data file headers.
B. It writes the checkpoint position to the data file headers.
C. It advances the checkpoint position in the checkpoint queue.
D. It writes the checkpoint position to the control file.
Answer: CD
NEW QUESTION 221
Which statement is true aboutusing the Database Upgrade Assistant (DBUA) to upgrade your database from Oracle Database 11g to Oracle Database 12c?
A. It terminates if the SYSTEM tablespace in the source database is not autoextensible.
B. It automatically makes necessary changes to Oracle environment variables.
C. It automatically enables unified auditing in the upgraded database.
D. It automatically adds new data files if there is not enough disk space to grow.
Answer: D
NEW QUESTION 222
Examine the parameters for a database instance:
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Your database has three undo tablespaces and the default undo tablespace is not autoextensible. Resumable space allocation is not enabled for any sessions in the database instance. What is the effect on new transactions when all undo space in the default undo tablespace is in use by activetransactions?
A. Transactions write their undo in the SYSTEM undo segment.
B. Transactions fail.
C. Transactions wait until space becomes available in UNDOTBS1.
D. Transactions write their undo in a temporary tablespace.
Answer: B
NEW QUESTION 223
What should you do to ensure that a job stored minimal job metadata and runtime data on disk, and uses only existing PL/SQL programs?
A. Create an event-based job.
B. Create a lightweight job.
C. Specify the job as amember of a job class.
D. Use a job array.
Answer: B
NEW QUESTION 224
You want to schedule a job to rebuild atable’s indexes after a bulk insert, which must be scheduled as soon as a file containing data arrives on the system. What would you do to accomplish this?
A. Create a file watcher and an event-based job for bulk insert and then create another job to rebuild indexes on the table.
B. Create a file watcher for the bulk inserts and then create a job to rebuild indexes.
C. Create a job array and add a job for bulk insert and a job to rebuild indexes to the job array.
D. Create an event-based job for the filearrival event, then create a job for bulk insert, and then create a job to rebuild indexes.
Answer: A
NEW QUESTION 225
You plan to install the Oracle Database 12c software on a new server. The database will use Automatic Storage Management (ASM) and Oracle Restart. Oracle Grid Infrastructure for a standalone server is already installed on the server. You want to configure job role separation. You create the following operating system users and groups:
– The user oracle as the owner of the Oracle database installation
– The user grid as the owner of Oracle Grid Infrastructure
– The group oinstall as an Oracle Inventory group
– The group dba as the OSDBA group for Oracle database
– The group asmdbaas the OSDBA group for Oracle ASM
– The group asmadmin as the administration privileges group for Oracle ASM
– The group asmoper as the group for Oracle ASM
Which two additional tasks should you perform with regard to the OS-level owners and groups?
A. creating a separate central inventory group for the Oracle Database 12c installation
B. assigning oinstall as the primary group for the oracle user
C. assigning asmadmin and asmoper as primary groups for the oracle user
D. creating OS groups associated with the OSBACKUPDBA, OSDGDBA, and OSKMDBA system privileges
E. assigning asmdba as the secondary group for the oracle user
Answer: CD
NEW QUESTION 226
Which two statements are true about the (PMON) background process in Oracle Database 12c?
A. It records checkpoint information in the control file.
B. It frees unused temporary segments.
C. It kills sessions that exceed idle time.
D. It registers database services with all local and remote listeners known to the database instance.
E. It frees resources held by abnormally terminated processes.
Answer: DE
NEW QUESTION 227
You want to upgrade an Oracle Database running Oracle Database 11g to Oracle Database 12c. Which three tasks should be performed before a manual upgrade?
A. running preupgrad.sql in Oracle Database 11g to generate fix-up scripts and a log file
B. running utlu121s.sql from the new Oracle home to display information about the required initialization parameters
C. copying the initialization parameter file to the new Oracle home
D. copying the password file to the new Oracle home
E. copying net configuration files to the new Oracle home
Answer: ACE
NEW QUESTION 228
You want to create a database and you have the following:
– Oracle Grid Infrastructure is installed and configured
– Oracle Database Vault is installed in ORACLE_HOME to be used for this database
– Oracle Enterprise Manager Cloud Control isavailable and an agent is deployed on the database server
Examine the requirements:
1. configuring the database instance to support shared server mode
2. using Automatic Storage Management (ASM) for storing database files
3. configuring a naming methodto help a remote user connect to a database instance
4. configuring the Fast Recovery Area
5. configuring Database Vault
6. configuring Enterprise Manager (EM) Database Express
7. registering with EM Cloud Control
8. configuring remote log archive destinations
9. enabling daily incremental backups
10. configuring a nondefault block size for nondefault block size tablespaces
Which of these requirements can be met while creating a database by using the Database Configuration Assistant (DBCA)?
A. 1, 2, 4, 5,7, 8, 9 and 10
B. 1, 2, 4, 5, 6 and 7
C. 1, 2, 3, 8, 9 and 10
D. 1, 2, 3, 4, 6, 8, 9 and 10
E. 1, 2, 4, 5, 6, 7 and 8
Answer: D
NEW QUESTION 229
Which two options can be configured for an existing database by using the Database Configuration Assistant (DBCA)?
A. Configure Label Security
B. Database Vault in ORACLE_HOME
C. Oracle Suggested BackupStrategy
D. Database Resident Connection Pooling
E. Nondefault blocksize tablespaces
Answer: BD
NEW QUESTION 230
Which two statements are true about availability audit features after migration to unified auditing?
A. The ability of users to audit their own schema objects is not available in the post- migrated database.
B. Operating systemaudit trail is available in the post-migrated database.
C. Network auditing is available in the post-migrated database.
D. Mandatory auditing of audit administrative actions is available in the post-migrated database.
Answer: AD
NEW QUESTION 231
What can be automatically implemented after the SQL Tuning Advisor is run as part of the Automated Maintenance Task?
A. statistics recommendations
B. SQL profile recommendations
C. SQL statement restructure recommendations
D. creation of materialized views toimprove query performance
Answer: B
NEW QUESTION 232
……
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New 1Z0-062 Exam Questions and Answers Updated Recently (23/May/2017):
NEW QUESTION 273
SMD is a smallfile locally managed tablespace with manual segment space management. The SH user receives the following error while inserting data into the sales table:
ERROR at line 1:
ORA-01653: unable to extend table SH.SALES by 128 in tablespace SMD.
Which three actions can be taken to enable the user to insert data? (Choose three.)
A. Altering the data file associated with the SMD tablespace to grow automatically.
B. Adding a data file to the SMD tablespace, provided the tablespace has not reached its maximum number of file
C. Changing segment space management for the SMD tablespace to automatic.
D. Resizing the data file associated with the SMD tablespace to make it larger, provided all data files have not yet reached their maximum size.
E. Increasing the space quota on the SMD tablespace for the SH user, provided the files have not yet reached their maximum size.
Answer: CDE
NEW QUESTION 274
In your database instance, the UNDO_RETENTION parameter is set to 1000 and undo retention is not guaranteed for the fixed size undo tablespace. Which statement is true about undo retention?
A. Undo is retained in the UNDO tablespace for 1000 seconds, and then moved to the SYSTEM tablespace to provide read consistency.
B. Inactive undo is retained for at least 1000 seconds if free undo space is available.
C. Inactive undo is retained for 1000 seconds even if new transactions fall due to lack of space in the undo tablespace.
D. Undo becomes expired obsolete after 1000 seconds.
Answer: A
NEW QUESTION 275
Which two files must you copy from the Oracle home of the database that is being upgraded to the new Oracle home for Oracle Database 12c? (Choose three.)
A. the tnsnames.ora file
B. the sqlnet.ora file
C. the initialization parameter file
D. the password file
E. the listener.ora file
Answer: ABE
NEW QUESTION 276
In your Oracle 12c database, you invoke SQL *Loader Express Mode command to load data:
$> sqlldr hr/hr table=employees
Which two statements are true about this command? (Choose two.)
A. It succeeds and creates the EMPLOYEES table in the HR schema if the table does not exist.
B. It fails because the SQL *Loader control file location is not specified.
C. It fails because the SQL *Loader data file location is not specified.
D. It succeeds with default settings if the EMPLOYEES table belonging to the HR schema is already defined in the database.
E. It succeeds even if the HR user does not have the CREATE DIRECTORY privilege.
Answer: DE
NEW QUESTION 277
Backup requirements for a database:
* Level 0 backup on Sunday
* Cumulative incremental level 1 backup on Monday, Wednesday, and Saturday
* Differential incremental level 1 backup on Tuesday, Thursday, and Friday
Which three statements are true about the strategy? (Choose three.)
A. Level 0 backup on Sunday contains all the blocks that have been formatted.
B. Level 0 backup on Sunday contains all the blocks that have been changed since the last level 1 backup.
C. Level 1 backup on Tuesday, Thursday, and Friday contains all the blocks that have been changed since the last level 1 backup.
D. Level 1 backup on Monday, Wednesday, and Saturday contains all the blocks that have been changed since the last level 0 backup.
E. Level 1 backup on Tuesday, Thursday, and Friday contains all the blocks that have been changed since the last level 0 backup.
Answer: BDE
NEW QUESTION 278
When is the UNDO_RETENTION parameter value ignored by a transaction?
A. when there are multiple undo tablespaces available in a database
B. when the data file of the undo tablespace is autoextensible
C. when the undo tablespace is of a fixed size and retention guarantee is not enabled
D. when Flashback Database is enabled
Answer: C
NEW QUESTION 279
Which two statements are true about the Database Configuration Assistant (DBCA)? (Choose two.)
A. It can be used to create a database template from an existing database.
B. It can be used to add a new tablespace.
C. It can generate SQL database creation scripts.
D. It can be used to copy an existing Oracle database to a new host and apply any patches necessary in the new host.
E. It can configure Automatic Storage Management (ASM) diskgroups.
Answer: AE
NEW QUESTION 280
You are managing an Oracle Database 12c database. The database is open, and you plan to perform Recovery Manager (RMAN) backups. Which three statements are true about these backups? (Choose three.)
A. The backups would be consistent.
B. The backups would be possible only if the database is running in ARCHIVELOG mode.
C. The backups need to be restored and the database has to be recovered in case of a media failure.
D. The backups would be inconsistent.
E. The backups by default consist of all the data blocks within the chosen files or the full database.
Answer: BDE
NEW QUESTION 281
Which three tools or tasks are run by default as part automated maintenance tasks? (Choose three.)
A. Automatic Database Diagnostic Monitor
B. optimizer statistics gathering
C. SQL Access Advisor
D. Segment Advisor
E. Automatic SQL Tuning Advisor
Answer: CDE
NEW QUESTION 282
You plan to upgrade your Oracle Database 9i to Oracle Database 12c. Which two methods can you use? (Choose two.)
A. Perform a rolling upgrade.
B. Perform a direct upgrade by running the Database Upgrade Assistant (DBUA).
C. Perform a direct upgrade by manually running the catctl.pl and catupgrd.sql scripts before issuing the STARTUPUPGRADE command.
D. Install the Oracle Database 12c software, create a new Oracle 12c database, and then use the Oracle Data Pump to import data from the source Oracle 9i database to the target Oracle 12c database.
E. Upgrade your current database to Oracle Database release 10.2.0.5, and then upgrade to Oracle Database 12c.
Answer: CD
NEW QUESTION 283
Examine the following command:
SQL> DBMS_STATS. SET_TABLE_PREFS (‘SH’, ‘CUSTOMERS’, ‘PUBLISH’, ‘false’);
What is the effect of executing this command?
A. Existing statistics for the CUSTOMERS table become unusable for the query optimizer.
B. Automatic statistics collection is stopped for the CUSTOMERS table.
C. Statistics for the CUSTOMERS table are locked and cannot be overwritten.
D. Statistics subsequently gathered on the CUSTOMERS table are stored as pending statistics.
Answer: D
NEW QUESTION 284
Which four statements are true about the components of the Oracle Scheduler? (Choose four.)
A. A schedule can be specified to a single job only.
B. A scheduler job can point to a chain instead of pointing to a single program object.
C. A job may get started automatically when a window opens.
D. A program and job can be specified as part of a schedule definition.
E. A job is specified as part of a program specification.
F. A program can be used in the definition of multiple jobs.
G. A program and schedule can be specified as part of a job definition.
Answer: BCFG
NEW QUESTION 285
Which three statements are true about checkpointing? (Choose three.)
A. It prompts the Checkpoint (CKPT) process to write data to the data files and redo information to the online redo log files.
B. It ensures that all dirty buffers are written to data files during consistent shutdown.
C. It reduces the time required for recovery in case of an instance failure.
D. Frequent thread checkpoints can degrade database performance.
E. It prompts the Database Writer (DBWn) process to write checkpoint information into data file headers and the control file.
Answer: BCE
NEW QUESTION 286
Your database instance has Automatic Memory Management enabled and supports shared server connections. Examine the following:
1. Parallel execution messages and control structures
2. Local variables for a process
3. Security and resource usage information
4. Runtime memory values, such as rows retrieved for a SQL statement using a serial execution plan
5. SQL execution work areas
Which option indicates what is allocated from the large pool in this instance?
A. only 1
B. 1, 2, and 5
C. 1, 2, 3, and 5
D. 1, 2, and 4
Answer: D
NEW QUESTION 287
You install Oracle Grid Infrastructure for a standalone server. Which two components are automatically included in the Oracle Restart configuration? (Choose two.)
A. A pre-existing Oracle Net Listener
B. Oracle Notification services
C. A pre-existing database
D. A pre-existing Oracle management agent
E. Oracle CSSD service
Answer: BC
NEW QUESTION 288
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NEW QUESTION 327
Which three statements are true about Enterprise Manager Database Express? (Choose three.)
A. It can be used to perform database backup operations.
B. It can use the HTTP protocol.
C. The same port number is used for multiple Database Express configurations on the same host.
D. It can use the HTTPS protocol.
E. It is available only when the database is open.
Answer: BDE
NEW QUESTION 328
When does a database checkpoint occur?
A. When there is an online redo log switch.
B. When a user session terminates abnormally.
C. When a server process terminates abnormally.
D. When the SHUTDOWN ABORT command is issued.
Answer: A
NEW QUESTION 329
What action must you take to ensure complete database recovery till the point of failure?
A. Multiplex the control files.
B. Duplex the RMAN backup sets.
C. Multiplex the online redo log files.
D. Configure the database to run in ARCHIVELOG mode.
Answer: D
NEW QUESTION 330
You want to create a table, DAILY_ORDERS, for an OLTP application, where data should be compressed during both direct path INSERT and conventional DML. The table will also be used for queries. Which compression option should be used?
A. ROW STORE COMPRESS
B. COLUMN STORE COMPRESS FOR QUERY
C. COLUMN STORE COMPRESS FOR ARCHIVE LOW
D. ROW STORE COMPRESS ADVANCED
Answer: D
NEW QUESTION 331
An application repeatedly accesses small lookup tables, causing a lot of physical I/O operations. What do you recommend to minimize this?
A. Configure the nonstandard buffer cache with a buffer size greater than the size of the default buffer cache.
B. Increase the size of the shared pool.
C. Configure the KEEP buffer cache and alter the tables to use the KEEP cache.
D. Configure the RECYCLE buffer cache and alter the tables to use the RECYCLE cache.
Answer: C
NEW QUESTION 332
Examine the command:
SQL> CREATE TABLESPACE test1
DATAFILE ‘/u01/app/oracle/oradata/orc1/test01.dbf’ SIZE 5M AUTOEXTEND ON UNIFORM;
Which statement is true?
A. The data file, TEST01.DBF, can be auto extended to a maximum size of 5M.
B. The tablespace, TEST1, can contain a maximum of one data file.
C. Allocated and free extents are tracked using bitmaps.
D. Segment free space is tracked in the data dictionary.
Answer: C
NEW QUESTION 333
Your database is open in read/write mode and multiple users are connected to the database instance. You execute the following command:
SQL> ALTER SYSTEM ENABLE RESTRICTED SESSION;
What would be the effect on current sessions?
A. They are not terminated but may only issue queries.
B. They are not affected.
C. They are terminated immediately.
D. They are terminated after completing the transaction.
Answer: B
NEW QUESTION 334
You want to distribute a set of structured data to your customers who can integrate this data into their existing databases irrespective of the platform. Which method provides the fastest way of achieving this?
A. using the DBVERIFY utility
B. using direct-path INSERT SQL statements
C. using SQL*Loader
D. using RMAN transportable tablespace operation
Answer: B
NEW QUESTION 335
You create a locally managed tablespace ORDERS_TBS with automatic segment management. You then create the table DAILY_ORDS_LST in the ORDERS_TBS tablespace using the command:
CREATE TABLE daily_ords_1st(ordno NUMBER, ord_date DATE) PCTFREE 20;
How does the PCTFREE storage parameter influence data storage for this table?
A. It allows only 80% of space to be occupied in all data blocks of this table.
B. It minimizes row chaining during row insertion.
C. It minimizes row migration during existing row data updation.
D. It automatically coalesces free space of a data block when it reaches 20% of available space.
Answer: A
NEW QUESTION 336
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