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The Oracle 1Z0-062 is one of the two certification exams that you need to pass in order to get the Oracle Database 12c Administrator Certified Associate certificate. The second test is 1Z0-071. The target audience for this exam is those individuals who want to prove their skills in fundamental database terminologies and concepts to guide vital functions for businesses, processes, and systems.
NEW QUESTION 162
In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer.
Which statement is true?
- A. The CDB must be in the mount stage.
- B. The CDB must be open.
- C. The CDB must be in the nomount stage.
- D. Alt existing PDBs must be closed.
Answer: B
Explanation:
Explanation
* Creating a PDB
Rather than constructing the data dictionary tables that define an empty PDB from scratch, and then populating its Obj$ and Dependency$ tables, the empty PDB is created when the CDB is created. (Here, we use empty to mean containing no customer-created artifacts.) It is referred to as the seed PDB and has the name PDB$Seed.
Every CDB non-negotiably contains a seed PDB; it is non-negotiably always open in read-only mode. This has no conceptual significance; rather, it is just an optimization device. The create PDB operation is implemented as a special case of the clone PDB operation. The size of the seed PDB is only about 1 gigabyte and it takes only a few seconds on a typical machine to copy it.
NEW QUESTION 163
You plan to migrate your database from a File system to Automata Storage Management (ASM) on same platform.
Which two methods or commands would you use to accomplish this task? (Choose two.)
- A. RMAN CONVERT command
- B. DBMS_FILE_TRANSFER with transportable tablespace
- C. The BACKUP AS COPY DATABASE . . . command of RMAN
- D. Data Pump Export and import
- E. Conventional Export and Import
Answer: A,C
Explanation:
Explanation/Reference:
Explanation:
A:
1. Get the list of all datafiles.
Note: RMAN Backup of ASM Storage
There is often a need to move the files from the file system to the ASM storage and vice versa. This may come in handy when one of the file systems is corrupted by some means and then the file may need to be moved to the other file system.
D: Migrating a Database into ASM
* To take advantage of Automatic Storage Management with an existing database you must migrate that database into ASM. This migration is performed using Recovery Manager (RMAN) even if you are not using RMAN for your primary backup and recovery strategy.
* Example:
Back up your database files as copies to the ASM disk group.
BACKUP AS COPY INCREMENTAL LEVEL 0 DATABASE
FORMAT '+DISK' TAG 'ORA_ASM_MIGRATION';
References:
NEW QUESTION 164
Which statement is true about the Oracle central inventory directory (oraInventory)?
- A. Oracle software owners must be members of the same central oraInventorygroup, but they need
not have this group as their primary group. - B. oraInventorymust not be shared by all Oracle software installations on a single system.
- C. If ORACLE_BASEis set to /u01/app/oraclefor the oracle user during an installation, OUI creates the
Oracle Inventory directory in the /u01/app/oracle/ oraInventorypath. - D. lf an OFA-compliant path is not created and the ORACLE_BASEenvironment variable is not set during
an Oracle Database installation, the Oracle Inventory directory is placed in the home directory of the
user that is performing the installation.
Answer: A
Explanation:
Explanation/Reference:
References: https://docs.oracle.com/database/121/CWLIN/usrgrps.htm#CWLIN483
NEW QUESTION 165
You plan to install the Oracle Database 12c software. You want to use Oracle Automatic Storage Management (ASM) for storage and Oracle Restart for managing components. Oracle Grid Infrastructure for a Standalone Server is already installed on the server.
Which three statements must be true for successful installation of the Oracle Database 12c software?
(Choose three.)
- A. The Oracle Database 12c software owner and the Oracle Grid Infrastructure owner must belong to the same Oracle Inventory Group.
- B. The Oracle Database 12c installation must have a separate Oracle inventory directory.
- C. An operating system OSDBAgroup must be created for users with the SYSDBA system privilege.
- D. An operating system OSOPERgroup be created for users with the SYSOPERsystem privilege.
- E. The OSBACKUPDBA, OSDGDBA, and OSKMDBAOS groups must be created.
Answer: A,C,D
NEW QUESTION 166
The following parameter are set for your Oracle 12c database instance:
OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES=FALSE
OPTIMIZER_USE_SQL_PLAN_BASELINES=TRUE
You want to manage the SQL plan evolution task manually. Examine the following steps:
1. Set the evolve task parameters.
2. Create the evolve task by using the DBMS_SPM.CREATE_EVOLVE_TASK function.
3. Implement the recommendations in the task by using the DBMS_SPM.IMPLEMENT_EVOLVE_TASK function.
4. Execute the evolve task by using the DBMS_SPM.EXECUTE_EVOLVE_TASK function.
5. Report the task outcome by using the DBMS_SPM.REPORT_EVOLVE_TASK function.
Identify the correct sequence of steps:
- A. 2, 4, 5
- B. 2, 1, 4, 3, 5
- C. 1, 2, 4, 5
- D. 1, 2, 3, 4, 5
Answer: B
Explanation:
* Evolving SQL Plan Baselines
*
2. Create the evolve task by using the DBMS_SPM.CREATE_EVOLVE_TASK function.
This function creates an advisor task to prepare the plan evolution of one or more plans for a specified SQL statement.
The input parameters can be a SQL handle, plan name or a list of plan names, time limit, task name, and description.
1. Set the evolve task parameters.
SET_EVOLVE_TASK_PARAMETER
This function updates the value of an evolve task parameter. In this release, the only valid parameter is TIME_LIMIT.
4. Execute the evolve task by using the DBMS_SPM.EXECUTE_EVOLVE_TASK function.
This function executes an evolution task. The input parameters can be the task name, execution name, and execution
description. If not specified, the advisor generates the name, which is returned by the function.
3: IMPLEMENT_EVOLVE_TASK
This function implements all recommendations for an evolve task. Essentially, this function is equivalent to using
ACCEPT_SQL_PLAN_BASELINE for all recommended plans. Input parameters include task name, plan name, owner
name, and execution name.
5. Report the task outcome by using the DBMS_SPM_EVOLVE_TASK function.
This function displays the results of an evolve task as a CLOB. Input parameters include the task name and section of
the report to include.
References:
NEW QUESTION 167
Examine the following command;
ALTER SYSTEM SET enable_ddl_logging = TRUE;
Which statement is true?
- A. All DDL commands are logged in the alert log file.
- B. All DDL commands are logged in a different log file that contains DDL statements and their execution dates.
- C. Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file.
- D. Only DDL commands that resulted in the creation of new segments are logged.
- E. All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.
Answer: E
Explanation:
Explanation
NEW QUESTION 168
Which three statements are true about Flashback Database? (Choose three.)
- A. Flashback Database can recover a data file that was dropped during the span of time of the flashback.
- B. Flashback logs are used to restore to the blocks before images, and then the redo data may be used to
roll forward to the desired flashback time. - C. Flashback Database uses a restored control file to recover a database.
- D. Flashback logs are written sequentially, and are archived.
- E. Flashback Database can recover a database to the state that it was in before a reset logs operation.
- F. The Oracle database automatically creates, deletes, and resides flashback logs in the Fast Recovery
Area.
Answer: B,E,F
NEW QUESTION 169
You have the following entry in the tnsnames.ors of your hq.us.example.com host machine:
You issue the following command at the command prompt:
Sqlplus HR/HR@ORCL
Which statement is true about the connection to the ORCL database instance?
- A. The connection succeeds, provided the NAMES.DEFAULT_DOMAIN parameter is set to us.example.com in the sqlnet.ora file on the client side.
- B. The connection succeeds, provided the ORCL.us.example.com database service is registered with a listener, the listener is up, and the database is open.
- C. The connection fails because the net service name does not have the suffix us.example.com.
- D. The connection succeeds, provided the SERVICE_NAMES initialization parameter is set to ORCL.
Answer: B
NEW QUESTION 170
Examine the structure of the sales table, which is stored in a locally managed tablespace with Automatic Segment Space Management (ASSM) enabled.
NameNull?Type
PROD_IDNOT NULL NUMBER
CUST_IDNOT NULL NUMBER
TIME_IDNOT NULL DATE
CHANNEL_IDNOT NULL NUMBER
PROMO_IDNOT NULL NUMBER
QUANT I TY___S OL DNOT NULL NUMBER (10, 2) AMOUNT SOLDNOT NULL NUMBER (10, 2)
You want to perform online segment shrink to reclaim fragmented free space below the high water mark.
What should you ensure before the start of the operation?
- A. Referential integrity constraints for the table are disabled.
- B. No pending transaction exists on the table.
- C. Row movement is enabled.
- D. No queries are running on this table.
- E. Extra disk space equivalent to the size of the segment is available in the tablespace.
Answer: E
NEW QUESTION 171
Which two statements are true concerning the Resource Manager plans for individual pluggable databases (PDB plans) in a multitenant container database (CDB)?
- A. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the CDB.
- B. In a PDB plan, subplans may be used with up to eight consumer groups.
- C. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based on the shares provided to the PDB in the CDB plan and the shares provided to the consumer groups in the PDB plan.
- D. If no PDB plan is enabled for a pluggable database, then all sessions for that PDB are treated to an equal degree of the resource share of that PDB.
- E. If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.
Answer: C,D
Explanation:
A: Setting a PDB resource plan is optional. If not specified, all sessions within the
PDB are treated equally.
*In a non-CDB database, workloads within a database are managed with resource plans.
In a PDB, workloads are also managed with resource plans, also called PDB resource plans.
The functionality is similar except for the following differences:
/ Non-CDB Database
Multi-level resource plans Up to 32 consumer groups Subplans / PDB Database Single-level resource plans only Up to 8 consumer groups (not B) No subplans
NEW QUESTION 172
Which four statements are true about the components of the Oracle Scheduler? (Choose four.)
- A. A program can be used in the definition of multiple jobs.
- B. A job is specified as part of a program specification.
- C. A job may get started automatically when a window opens.
- D. A schedule can be specified to a single job only.
- E. A program and schedule can be specified as part of a job definition.
- F. A scheduler job can point to a chain instead of pointing to a single program object.
- G. A program and job can be specified as part of a schedule definition.
Answer: A,C,E,F
Explanation:
Explanation
References: https://docs.oracle.com/cd/B19306_01/server.102/b14231/schedover.htm
NEW QUESTION 173
Which two statements are true about availability audit features after migration to unified auditing? (Choose two.)
- A. The ability of users to audit their own schema objects is not available in the post-migrated database.
- B. Operating system audit trail is available in the post-migrated database.
- C. Mandatory auditing of audit administrative actions is available in the post-migrated database.
- D. Network auditing is available in the post-migrated database.
Answer: A,C
Explanation:
Explanation
References: https://docs.oracle.com/database/121/DBSEG/audit_changes.htm#DBSEG341
NEW QUESTION 174
In your database, the STATISTICS_LEVELparameter is set to TYPICALand an Automatic Workload Repository (AWR) snapshot is taken every 30 minutes.
Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)? (Choose two.)
- A. It runs after each AWR snapshot is created and it requires at least two snapshots for analysis.
- B. It measures database performance by analyzing the wait time and CPU time of all non-idle user sessions.
- C. It always compares the latest snapshot with the baseline snapshot for analysis.
- D. It requires at least four AWR snapshots for analysis.
- E. It calls other advisors if required, but does not provide recommendations about the advisors to be used.
Answer: A,B
NEW QUESTION 175
Which three statements are true regarding the use of the Database Migration Assistant for Unicode (DMU)? (Choose three.)
- A. The release of the database to be converted can be any release since 9.2.0.8.
- B. The DMU can report columns that are not represented in the converted characterset.
- C. The DMU can report columns that are too long in the converted characterset.
- D. A DBA can check specific tables with the DMU
- E. The database to be migrated must be opened read-only.
Answer: B,C,D
Explanation:
Explanation/Reference:
Explanation:
A: In certain situations, you may want to exclude selected columns or tables from scanning or conversion steps of the migration process.
D: Exceed column limit
The cell data will not fit into a column after conversion.
E: Need conversion
The cell data needs to be converted, because its binary representation in the target character set is different than the representation in the current character set, but neither length limit issues nor invalid representation issues have been found.
* Oracle Database Migration Assistant for Unicode (DMU) is a unique next-generation migration tool providing an end-to-end solution for migrating your databases from legacy encodings to Unicode.
Incorrect:
Not C: The release of Oracle Database must be 10.2.0.4, 10.2.0.5, 11.1.0.7, 11.2.0.1, or later.
NEW QUESTION 176
Which two statements are true about resumable space allocation? (Choose two.)
- A. SELECTstatements that run out of temporary space for sort areas are candidates for resumable execution.
- B. Resumable space allocation does not apply when users exceed their assigned space quota in a tablespace.
- C. Free space in a segment is automatically reclaimed when a resumable statement is suspended because of an out-of-space condition.
- D. A resumable statement can be suspended and resumed only once during a session.
- E. Resumable space allocation does not applywhen a database instance uses asynchronous commit.
- F. A database-levelLOGONtrigger can be used to automatically configure resumable statement settings forindividual sessions.
Answer: A,D
Explanation:
References:https://docs.oracle.com/cd/B28359_01/server.111/b28310/schema002.htm#AD
MIN11581
NEW QUESTION 177
Which three statements are true about the Pre-Upgrade Information Tool?
- A. The preupgrade_fixups.sqlscript is created to list and describe issues in the source database.
- B. It generates a script to recompile invalid objects post-upgrade.
- C. The portupgrade_fixups.sqlscript is created to address issues that can be fixed after a database has been upgraded.
- D. It checks for required tablespaces and if they are not available, creates them automatically.
- E. A log file, preupgrade.log, is created that contains the output of the Pre-Upgrade Information tool.
- F. The preupgrade_fixups.sqlscript is executed automatically to fix issues in the source database.
Answer: B,E,F
Explanation:
Explanation/Reference:
References https://docs.oracle.com/database/122/UPGRD/using-preupgrade-information-tool-for-oracle- database.htm#UPGRD-GUID-C0219AF1-AD43-4097-B358-E53E48958647
NEW QUESTION 178
Examine the parameters for a database instance:
Which two statements are true? (Choose two.)
- A. No redo is generated for the undo records belonging to temporary tables.
- B. Undo records for temporary tables are stored in the undo tablespace and logged in the redo.
- C. No redo and undo records are generated for temporary tables.
- D. Undo records for temporary tables are stored in the undo tablespace and logged in the redo only for those sessions where temporary undo is enabled.
- E. Undo records for temporary tables are stored in a temporary tablespace.
Answer: C,E
NEW QUESTION 179
A database instance is started by using an SPFILE. The database is configured in ARCHIVELOG mode and the control
file autobackup is configured. Daily full database backups are performed by using RMAN.
You lost all control files due to media failure.
Given the steps to recover from the error in random order:
1. Shut down the instance, if it is not already down.
2. Restore the control file from autobackup to a new location.
3. Start the database instance to NOMOUNT state.
4. Recover the database to the point of failure of the control file.
5. Open the database with the RESETLOGS option.
6. Mount the database.
7. Update the SPFILE with the new location of the control file by using the ALTER SYSTEM command.
Identify the correct sequence of the required steps.
- A. 1, 3, 2, 6, 7, 4, 5
- B. 1, 2, 6, 4, 5
- C. 1, 6, 2, 4, 5
- D. 1, 3, 2, 4, 5
- E. 1, 3, 7, 2, 6, 4, 5
Answer: C
NEW QUESTION 180
Which background process does Automatic Shared Memory Management use to coordinate the sizing of memory components?
- A. MMON
- B. SMON
- C. MMAN
- D. PMON
- E. MMNL
Answer: C
NEW QUESTION 181
Your database is configured in ARCHIVELOG mode.
Examine the RMAN configuration parameters:
Examine the command:
RMAN> BACKUP DATABASE PLUS ARCHIVELOG DELETE INPUT;
Which two are true? (Choose two.)
- A. It creates image copies of the archivelogs
- B. It creates a backupset of archive log files
- C. It fails because the DELETE INPUT option can be used only with the BACKUP AS BACKUPSET command
- D. It creates image copies of the database files
- E. It fails because the DELETE INPUT option can be used only with the BACKUP AS COPY command
Answer: A,C
NEW QUESTION 182
Examine the query and its output:
What might have caused three of the alerts to disappear?
- A. An Automatic Workload Repository (AWR) snapshot was taken before the execution of the second query.
- B. The threshold alerts were cleared and transferred to DBA_ALERT_HISTORY.
- C. An Automatic Database Diagnostic Monitor (ADOM) report was generated before the execution of the second query.
- D. The database instance was restarted before the execution of the second query.
Answer: D
NEW QUESTION 183
Examine the memory-related parameters set in the SPFILE of an Oracle database:
Which statement is true?
- A. The size of the PGA cannot grow automatically beyond 500 MB.
- B. Memory is dynamically re-allocated between the SGA and PGA as needed.
- C. The value of the MEMORY_TARGET parameter cannot be changed dynamically.
- D. Only SGA components are sizedautomatically.
Answer: A
NEW QUESTION 184
You configure your database Instance to support shared server connections.
Which two memory areas that are part of PGA are stored in SGA instead, for shared server connection?
(Choose two.)
- A. Private SQL area
- B. Location of a part of the runtime area for SELECT statements
- C. User session data
- D. Location of the runtime area for DML and DDL Statements
- E. Stack space
Answer: A,C
Explanation:
Explanation
A: PGA itself is subdivided. The UGA (User Global Area) contains session state information, including stuff like package-level variables, cursor state, etc. Note that, with shared server, the UGA is in the SGA. It has to be, because shared server means that the session state needs to be accessible to all server processes, as any one of them could be assigned a particular session. However, with dedicated server (which likely what you're using), the UGA is allocated in the PGA.
C: The Location of a private SQL area depends on the type of connection established for a session. If a session is connected through a dedicated server, private SQL areas are located in the server process' PGA. However, if a session is connected through a shared server, part of the private SQL area is kept in the SGA.
Note:
* System global area (SGA)
The SGA is a group of shared memory structures, known as SGA components, that contain data and control information for one Oracle Database instance. The SGA is shared by all server and background processes.
Examples of data stored in the SGA include cached data blocks and shared SQL areas.
* Program global area (PGA)
A PGA is a memory region that contains data and control information for a server process. It is nonshared memory created by Oracle Database when a server process is started. Access to the PGA is exclusive to the server process. There is one PGA for each server process. Background processes also allocate their own PGAs.
The total memory used by all individual PGAs is known as the total instance PGA memory, and the collection of individual PGAs is referred to as the total instance PGA, or just instance PGA. You use database initialization parameters to set the size of the instance PGA, not individual PGAs.
References:
NEW QUESTION 185
......
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