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Vendor: Oracle
Exam Code: 1Z0-062
Exam Name: Oracle Database 12c: Installation and Administration

QUESTION 1
Which three statements are true about a job chain?

A.    It can contain a nested chain of jobs.
B.    It can be used to implement dependency-based scheduling.
C.    It cannot invoke the same program or nested chain in multiple steps in the chain.
D.    It cannot have more than one dependency.
E.    It can be executed using event-based or time-based schedules.

Answer: ABE

QUESTION 2
The hr user receiver, the following error while inserting data into the sales table:
— ERROR at line 1:
— ORA-01653; unable to extend table HR.SALES by 128 in tablespace USERS
On investigation, you find that the users tablespace uses Automnrif Segment Space Management (ASSM). It is the default tablespace for the HR user with an unlimited quota on it. Which two methods would you use to resolve this error?

A.    Altering the data life associated with the USERS tablespace to ex automatically
B.    Adding a data life to the USERS tablespace
C.    Changing segment space management for the USERS tablespace to manual
D.    Creating a new tablespace with autoextend enabled and changing the default tablespace of the HR user to the new tablespace
E.    Enabling resumable space allocation by setting the RESUMABLE_TIMEOUT parameter to a nonzero value

Answer: AD

QUESTION 3
You execute the commands:
SQL>CREATE USER Sidney
IDENTIFIED BY out_standing1
DEFAULT TABLESPACE users
QUOTA 10M ON users
TEMPORARY TABLESPACE temp
ACCOUNT UNLOCK;
SQL> GRANT CREATE SESSION TO Sidney;
Which two statements are true?

A.    The create user command fails if any role with the name Sidney exists in the database.
B.    The user Sidney can connect to the database instance but cannot perform sort operations because no space quota is specified for the temp tablespace.
C.    The user Sidney is created but cannot connect to the database instance because no profile is
D.    The user Sidney can connect to the database instance but requires relevant privileges to create objects in the users tablespace.
E.    The user Sidney is created and authenticated by the operating system.

Answer: AE

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QUESTION 4
Examine the query and its output:
SQL> SELECT REASON, metric_value FROM dba_outstanding_alerts;
REASONMETRIC_VALUE
———————————– ——————-
Tablespace [TEST] is [28 perce 28.125nt] full
Metrics “Current Logons Count”29
Metrics “Database Time Spent99.0375405 waiting (%)” is at 99.03754 for event class “Application” db_recovery_file_dest_size of 974294967296 bytes is 97.298 used and has 116228096 remaining bytes available.
After 30 minutes, you execute the same query:
SQL> SELECT reason, metric_value FROM dba_outstanding_alerets;
REASONMETRIC_VALUE
—————————— —————
Tablespace [TEST] is [28 percs 28.125nt] full
What might have caused three of the alerts to disappear?

A.    The threshold alerts were cleared and transferred to d0A_alert_history.
B.    An Automatic Workload Repository (AWR) snapshot was taken before the execution of the second
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

QUESTION 5
Which two statements are true?

A.    A role cannot be assigned external authentication.
B.    A role can be granted to other roles.
C.    A role can contain both system and object privileges.
D.    The predefined resource role includes the unlimited_tablespace privilege.
E.    All roles are owned by the sys user.
F.    The predefined connect role is always automatically granted to all new users at the time of their creation.

Answer: BC

QUESTION 6
Identify three valid options for adding a pluggable database (PDB) to an existing multitenant container database (CDB).

A.    Use the CREATE PLUGGABLE DATABASE statement to create a PDB using the files from the SEED.
B.    Use the CREATE DATABASE ENABLE PLUGGABLE DATABASE statement to provision a PDB by copying file from the SEED.
C.    Use the DBMS_PDB package to clone an existing PDB.
D.    Use the DBMS_PDB package to plug an Oracle 12c non-CDB database into an existing CDB.
E.    Use the DBMS_PDB package to plug an Oracle 11 g Release 2 (11.2.0.3.0) non-CDB database into an existing CDB.

Answer: ACD

QUESTION 7
Your database supports a DSS workload that involves the execution of complex queries: Currently, the library cache contains the ideal workload for analysis. You want to analyze some of the queries for an application that are cached in the library cache. What must you do to receive recommendations about the efficient use of indexes and materialized views to improve query performance?

A.    Create a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.
B.    Run the Automatic Workload Repository Monitor (ADDM).
C.    Create an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.
D.    Create an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.

Answer: D

QUESTION 8
In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you find that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?

A.    Decreasing PCTUSED
B.    Decreasing PCTFREE
C.    Increasing the number of DBWN process
D.    Using Automatic Segment Space Management (ASSM)
E.    Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation

Answer: D

QUESTION 9
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, 3, 4, 5
D.    1, 2, 4, 5

Answer: B

QUESTION 10
Examine this command:
SQL > exec DBMS_STATS.SET_TABLE_PREFS (`SH’, `CUSTOMERS’, `PUBLISH’, `false’);
Which three statements are true about the effect of this command?

A.    Statistics collection is not done for the CUSTOMERS table when schema stats are gathered.
B.    Statistics collection is not done for the CUSTOMERS table when database stats are gathered.
C.    Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time.
D.    Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics.
E.    Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.

Answer: CDE

QUESTION 11
Examine the following impdp command to import a database over the network from a pre-12c Oracle database (source):

Which three are prerequisites for successful execution of the command?

A.    The import operation must be performed by a user on the target database with the DATAPUMP_IMP_FULL_DATABASE role, and the database link must connect to a user on the source database with the DATAPUMP_EXD_FULL_DATABASE role.
B.    All the user-defined tablespaces must be in read-only mode on the source database.
C.    The export dump file must be created before starting the import on the target database.
D.    The source and target database must be running on the same platform with the same endianness.
E.    The path of data files on the target database must be the same as that on the source database.
F.    The impdp operation must be performed by the same user that performed the expdp operation.

Answer: ABD

QUESTION 12
Which two are true concerning a multitenant container database with three pluggable database?

A.    All administration tasks must be done to a specific pluggable database.
B.    The pluggable databases increase patching time.
C.    The pluggable databases reduce administration effort.
D.    The pluggable databases are patched together.
E.    Pluggable databases are only used for database consolidation.

Answer: CE

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