New 2022 1z0-062 Dumps for Oracle Database Certified Exam Questions & Answer
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Details for 1Z0-062
Particularly, 1Z0-062 certification test contains a total of about 67 multiple-choice questions that the students have to complete within 2 hours. If you want to pass this exam, you should try to get more than 64% of the correct answers. This Oracle test will cost you $245 and to ace it with flying colors, you should explore its topics first. Thus, here are a few of them:
- Developing and managing tablespaces;
- User security administration;
- Oracle network environment configuration;
- Concepts of recovery and backup;
- Introduction to DBAAS.
- Database storage structures and undo data management;
- Oracle database software upgrade;
- Oracle database architecture and management tools;
The procedure of earning this associate-level Oracle Database certificate expands by all odds the boundaries of candidates' knowledge and applied experience, allowing them to accomplish complicated practical lab tasks on the final test, and then in practice on a daily basis. Meanwhile, Oracle certification tests reveal your potential and measure as well as challenge your capability to reason and act through real questions based on varied scenarios.
NEW QUESTION 87
Which four actions are possible during an Online Data file Move operation? (Choose four.)
- A. Flashing back the database
- B. Creating and dropping tables in the data file being moved
- C. Performing Block Media Recovery for a data block in the data file being moved
- D. Executing DML statements on objects stored in the data file being moved
- E. Querying tables in the data file being moved
- F. Performing file shrink of the data file being moved
Answer: A,B,D,E
Explanation:
Explanation/Reference:
Explanation:
- You can now move On line Datafile without hove to stop Monoged Recovery and manually copy and rename Files. This can even be used to move Datafiles from or to ASM.
- New in Oracle Database 12c: FROM METAUNK. Physical Standby Database is in Active Data Guard Mode (opened READ ONLY and Managed Recovery is running):
It is now possible to online move a Datafile while Managed Recovery is running, ie. the Physical Standby Database is in Active Data Guard Mode. You can use this Command to move the Datafile
- A flashback operation does not relocate a moved data file to its previous location. If you move a data file online from one location to another and later flash back the database to a point in time before the move, then the Data file remains in the new location, but the contents of the Data file ore changed to the contents at the time specified in the flashback. Oracle0 Database Administrator's Guide 12c Release 1 (12.1)
NEW QUESTION 88
A user establishes a connection to a database instance by using an Oracle Net.
You want to ensure that:
1. The user account must be locked after five consecutive unsuccessful login attempts.
2. Data read per session must be limited for the user.
3. The user cannot have more than three simultaneous sessions.
4. The user must have a maximum of 10 minutes session idle time before being logged off automatically.
Which two would you do to implement this? (Choose two.)
- A. by alerting the appropriate user attributes with an ALTER USER command
- B. by implementing Database Resource Manager and assign it a profile for the user
- C. by using appropriate KERNEL parameters set in the profile assigned to the user
- D. by implementing Database Resource Manager and assign it a role for the user
- E. by using appropriate PASSWORDparameters set in the profile assigned to the user
Answer: A,D
NEW QUESTION 89
Which three statements are true about Flashback Database?
- A. Flashback logs are written sequentially, and are archived.
- B. The Oracle database automatically creates, deletes, and resides flashback logs in the
Fast Recovery Area. - C. Flashback Database can recover a data file that was dropped during the span of time of the flashback.
- D. Flashback logs are used to restore to theblocks' before images, and then the redo data may be used to roll forward to the desired flashback time.
- E. Flashback Database uses a restored control file to recover a database.
- F. Flashback Database can recover a database to the state that it was in before a reset logs operation.
Answer: B,D,E
Explanation:
* Flashback Database uses its own logging mechanism, creating flashback logs and storing them in the fast recovery area (C). You can only use Flashback Database if flashback logs are available. To take advantage of this feature, you must set up your database in advance to create flashback logs.
* To enable Flashback Database, you configure a fast recovery area and set a flashback retention target. This retention target specifies how far back you can rewind a database with Flashback Database.
From that time onwards, at regular intervals, the database copies images of each altered block in every data file into the flashback logs. These block images can later be reused to reconstruct the data file contents for any moment at which logs were captured. (F)
Incorrect:
Not E: You cannot use Flashback Database alone to retrieve a dropped data file. If you flash back a database to a time when a dropped data file existed in the database, only the data file entry is added to the control file. You can only recover the dropped data file by using RMAN to fully restore and recover the data file.
References:
NEW QUESTION 90
You set the following parameters in the parameter file and restart the database instance:
Which two statements are true?
- A. ThePGA_AGGREGATE_TARGETandSGA_TARGETparameters are automatically set to zero.
- B. The instance does not start up because Automatic Memory Management (AMM) is enabled butPGA_AGGREGATE_TARGETandSGA_TARGETparameters are set to nonzero values.
- C. The value oftheMEMORY_MAX_TARGETparameter remains zero for the database instance.
- D. The lower limits of thePGA_AGGREGATE_TARGETandSGA_TARGETparameters are set to 90 MB and 270 MB respectively.
- E. TheMEMORY_MAX_TARGETparameter is automatically set to 500 MB.
Answer: C,D
NEW QUESTION 91
You want to import the schema objects of the HRuser from the development database DEVDBto the production database PRODDBby using Oracle Data Pump. A database link devdb.us.oracle.comis created between PRODDBand DEVDB.
You execute the following command on the PRODDBdatabase server:
What should you do to resolve the error?
- A. Add network_link = devdb.us.oracle.com.
- B. Add the SYSTEMuser to the schemasoption.
- C. Change the dumpfileoption value to [email protected].
- D. Replace the dumpfileoption with network_1ink = devdb.us.oracle.com.
- E. Replace the schemasoption with network_1ink = devdb.us.oracle.com.
Answer: D
NEW QUESTION 92
Which three statements are true about Automatic Workload Repository (AWR)? (Choose three.)
- A. The snapshots collected by AWR are used by the self-tuning components in the database
- B. All AWR tables belong to the SYSTEM schema.
- C. AWR contains system wide tracing and logging information.
- D. The AWR data is stored in memory and in the database.
- E. AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.
Answer: A,D,E
NEW QUESTION 93
Which three statements are true about automated maintenance tasks?
- A. They run at predefined time intervals that are intended to occur during a period of low system load.
- B. An Oracle Schedulerjob is created for each maintenance task that is scheduled to run in a maintenance window.
- C. Predefined maintenance tasks consist of automatic optimizer statistics collection, running Automatic Segment Advisor, and running Automatic SQL Tuning Advisor.
- D. A maintenance window is automatically extended until all the maintenance tasks defined are completed.
- E. A repository is maintained in theSYSTEMtablespace to store the history of execution of all tasks.
Answer: A,B,C
Explanation:
Referenceshttps://docs.oracle.com/cd/E11882_01/server.112/e25494/tasks.htm#ADMIN12
331
NEW QUESTION 94
Examine the structure of the SALES table, which is stored in a locally managed tablespace with Automatic Segment Space Management (ASSM) enabled.
You want to perform online segment shrink to reclaim fragmented free space below the high water mark.
What should you ensure before the start of the operation?
- A. Extra disk space equivalent to the size of the segment is available in the tablespace.
- B. Row movement is enabled.
- C. Referential integrity constraints for the table are disabled.
- D. No pending transaction exists on the table.
- E. No queries are running on this table.
Answer: B
NEW QUESTION 95
You are connected using SQL* Plus to a multitenant container database (CDB) with SYSDBA privileges and execute the following sequence statements:
What is the result of the last SET CONTAINER statement and why is it so?
- A. It succeeds because the PDB_ADMIN user has the required privileges.
- B. If fails because the SET CONTAINER statement cannot be used with PDB$SEED as the target pluggable database (PDB).
- C. It fails because local users are unable to use the SET CONTAINER statement.
- D. It fails because common users are unable to use the SET CONTAINER statement.
Answer: C
NEW QUESTION 96
On your Oracle 12c database, you Issue the following commands to create indexes SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE; SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id); Which two statements are correct? (Choose two.)
- A. Only the ORD_CUSTOMER_IX2 index is created.
- B. Only the ORD_CUSTOMER_IX1 index is created.
- C. The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan.
- D. Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.
- E. Both the indexes are created; however, only the ORD_COSTOMER index is visible.
Answer: D,E
Explanation:
Explanation
11G has a new feature called Invisible Indexes. An invisible index is invisible to the optimizer as default.
Using this feature, we can test a new index without effecting the execution plans of the existing sql statements or we can test the effect of dropping an index without dropping it.
NEW QUESTION 97
Which three are activities performed by SMON? (Choose three.)
- A. applying online redo during instance recovery
- B. performing database services registration with the default listener
- C. recovering failed transactions that were skipped during instance recovery because of file-read or tablespace offline errors
- D. cleaning up temporary segments that are no longer needed
- E. cleaning up the database buffer cache and freeing resources that a client process was using
- F. restarting a server or a dispatcher process that terminated abnormally
Answer: A,C,D
Explanation:
Explanation/Reference:
NEW QUESTION 98
Which three statements are true about Oracle Restart? (Choose three.)
- A. It runs periodic check operations to monitor the health of Oracle components.
- B. While starting any components, it automatically attempts to start all dependencies first and in proper order.
- C. It can be configured to automatically attempt to restart various components after a hardware or software failure.
- D. It can be used to only start Oracle components.
- E. It can be configured to automatically restart a database in case of normal shutdown of the database instance.
Answer: A,B,D
NEW QUESTION 99
You plan to implement the distributed database system in your company. You invoke Database Configuration Assistant
(DBCA) to create a database on the server. During the installation, DBCA prompts you to specify the Global Database
Name.
What must this name be made up of?
- A. It must be made up of the value that you plan to assign for ORACLE_SID and SERVICE_NAMES.
- B. It must be made up of a database name and a domain name.
- C. It must be made up of the value that you plan to assign for INSTANCE_NAME and HOSTNAME.
- D. It must be made up of the value in ORACLE_SID and HOSTNAME.
Answer: B
Explanation:
Using the DBCA to Create a Database (continued)
3. Database Identification: Enter the Global Database Name in The form database_name.domain_name, and the
system identifier (SID). The SID defaults lo the database name and uniquely identifies the instance associated with the
database.
4. Management Options: Use this page to set up your database so that it can be managed with Oracle Enterprise
Manager. Select the default: "Configure the Database with Enterprise Manager." Optionally, this page allows you to
configure alert notifications and daily disk backup area settings.
Note: Yon must configure the listener before you can configure Enterprise Manager (as shown earlier).
NEW QUESTION 100
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 initialization parameter file
- B. the password file
- C. the sqlnet.orafile
- D. the tnsnames.orafile
- E. the listener.orafile
Answer: C,D,E
Explanation:
Explanation/Reference:
References https://docs.oracle.com/cd/E11882_01/server.112/e23633/afterup.htm#UPGRD52747
NEW QUESTION 101
Which two are true concerning a multitenant container database with three pluggable database? (Choose two.)
- A. All administration tasks must be done to a specific pluggable database.
- B. The pluggable databases reduce administration effort.
- C. The pluggable databases increase patching time.
- D. The pluggable databases are patched together.
- E. Pluggable databases are only used for database consolidation.
Answer: B,D
Explanation:
Explanation/Reference:
NEW QUESTION 102
You have altered a non-unique index to be invisible to determine if queries execute within an acceptable response time without using this index.
Which two are possible if table updates are performed which affect the invisible index columns?
- A. The index remains invisible.
- B. The index is updated by the DML on the table.
- C. The index automatically becomes visible in order to have it updated by DML on the table.
- D. The index becomes unusable but the table is updated by the DML.
- E. The index is not updated by the DML statements on the indexed table.
Answer: A,B
Explanation:
Unlike unusable indexes, an invisible index is maintained during DML statements.
Note:
* Oracle 11g allows indexes to be marked as invisible. Invisible indexes are maintained like any other index, but they are ignored by the optimizer unless the OPTIMIZER_USE_INVISIBLE_INDEXES parameter is set to TRUE at the instance or session level. Indexes can be created as invisible by using the INVISIBLE keyword, and their visibility can be toggled using the ALTER INDEX command.
NEW QUESTION 103
Which two statements are true about the RMAN validate database command? (Choose two.)
- A. It checks the database for interblock corruptions.
- B. It can detect corrupt block change tracking files.
- C. It checks the database for intrablock corruptions.
- D. It can detect corrupt spfiles.
- E. It can detect corrupt pfiles.
Answer: C,D
Explanation:
Block corruptions can be divided Into Interblock corruption and intrablock corruption. In intrablock corruption. the corruption occurs within the block itself and can be either physical or logical corruption. In interblock corruption, the corruption occurs between blocks and can only be logical corruption.
(key word) * The VALIDATE command checks for intrablock corruptions only. Only DBVERIFY and the ANALYZE statement detect Interblock corruption.
VALIDATE Command Output **> List of Control File and SPFILE.
File TYPE >>> SPFILE or Control File.
Status >>> OK if no corruption, or FAILED If block corruption is found.
Blocks Failing >>> The number of blocks that fail the corruption check. These
blocks are newly corrupt.
Blocks Examined >>> Total number of blocks in the file.
Oracle' Database Backup and Recovery User's Guide
12c Release 1 (12.1) - 16 Validating Database Files and Backups
NEW QUESTION 104
Examine the command to perform a data pump export operation on a source database:
$> expdp hr/hr DIRECTORY=dumpdir DUMPFILE=emp1.dmp VIEWS_AS_TABLE=emp_dept On the target database, you execute the data pump import command:
$ > impdp hr/hr DIRECTORY=dumpdir DUMPFILE=emp1.dmp VIEWS_AS_TABLE=emp_dept Which three statements are true? (Choose three.)
- A. Objects dependent on the EMP_DEPT view are exported.
- B. All rows from the dependent objects, along with the metadata required to create the EMP_DEPT view, are exported.
- C. The impdp operation creates EMP_DEPT as table and populates it with the data from the export dump file.
- D. The expdp operation exports data that satisfies the condition of the defining query used to create the EMP_DEPT view.
- E. The impdp operation creates the view and dependent objects.
Answer: A,C,D
NEW QUESTION 105
Which two statements are true?
- A. A role can be granted to other roles.
- B. A role cannot be assigned external authentication.
- C. All roles are owned by the sys user.
- D. The predefined resource role includes the unlimited_tablespace privilege.
- E. A role can contain both system and object privileges.
- F. The predefined connect role is always automatically granted to all new users at the time of their creation.
Answer: A,E
NEW QUESTION 106
Which three statements are true about Oracle Data Pump? (Choose three.)
- A. Oracle Data Pump export and import operations can be performed to move data across different database releases.
- B. A directory object must exist and a user performing an EXPDP or IMPDP operation must have read and write permission on that directory object.
- C. Oracle Data Pump export and import operations can be performed only by users with the SYSDBA privilege.
- D. DBMS_DATAPUMP PL/SQL packages can be used independent of Data Pump clients.
- E. Oracle Data Pump export operations invoked from the clients that are connected remotely by using a connection string, create Data Pump files on the client file system.
Answer: A,B,D
NEW QUESTION 107
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