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1z1-062試験番号:1z1-062 テスト対策書
試験科目:「Oracle Database 12c: Installation and Administration」
最近更新時間:2017-07-05
問題と解答:248

>> 1z1-062 テスト対策書

 

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NO.1 Your database has the SRV1 service configured for an application that runs on middle-tier
application server. The
application has multiple modules. You enable tracing at the service level by executing the following
command:
SQL > exec DBMS_MONITOR.SERV_MOD_ACT_TRACE_ENABLE ('SRV1');
The possible outcome and actions to aggregate the trace files are as follows:
1. The command fails because a module name is not specified.
2. A trace file is created for each session that is running the SRV1 service.
3. An aggregated trace file is created for all the sessions that are running the SRV1 service.
4. The trace files may be aggregated by using the trcess utility.
5. The trace files be aggregated by using the tkprof utility.
Identify the correct outcome and the step to aggregate by using tkprof utility?
A. 3 and 5
B. 1
C. 3 and 4
D. 2 and 5
E. 2 and 4
Answer: E

1z1-062 時間   
Explanation:
Tracing information is present in multiple trace files and you must use the trcsess tool to collect it
into a single file.
Incorrect:
Not 1: Parameter service_name
Name of the service for which tracing is enabled.
module_name
Name of the MODULE. An optional additional qualifier for the service.
Note:
* The procedure enables a trace for a given combination of Service, MODULE and ACTION name. The
specification is
strictly hierarchical: Service Name or Service Name/MODULE, or Service Name, MODULE, and
ACTION name must be
specified. Omitting a qualifier behaves like a wild-card, so that not specifying an ACTION means all
ACTIONs. Using
the ALL_ACTIONS constant achieves the same purpose.
* SERV_MOD_ACT_TRACE_ENABLE Procedure
This procedure will enable SQL tracing for a given combination of Service Name, MODULE and
ACTION globally unless
an instance_name is specified.
* DBMS_MONITOR.SERV_MOD_ACT_TRACE_ENABLE(
service_name IN VARCHAR2,
module_name IN VARCHAR2 DEFAULT ANY_MODULE,
action_name IN VARCHAR2 DEFAULT ANY_ACTION,
waits IN BOOLEAN DEFAULT TRUE,
binds IN BOOLEAN DEFAULT FALSE,
instance_name IN VARCHAR2 DEFAULT NULL);

NO.2 Examine the following command;
ALTER SYSTEM SET enable_ddl_logging = TRUE;
Which statement is true?
A. Only the data definition language (DDL) commands that resulted in errors 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. All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic
Repository (ADR)
home.
D. All DDL commands are logged in the alert log file.
E. Only DDL commands that resulted in the creation of new segments are logged.
Answer: D

1z1-062 開発   
Explanation:
Once DDL logging is turned on, every DDL command will be logged in the alert log file and also the
log.xml file.
Note:
* By default Oracle database does not log any DDL operations performed by any user. The default
settings for auditing
only logs DML operations.
* Oracle 12c DDL Logging - ENABLE_DDL_LOGGING
The first method is by using the enabling a DDL logging feature built into the database. By default it is
turned off and
you can turn it on by setting the value of ENABLE_DDL_LOGGING initialization parameter to true.
* We can turn it on using the following command. The parameter is dynamic and you can turn it
on/off on the go.
SQL> alter system set ENABLE_DDL_LOGGING=true;
System altered.
Elapsed: 00:00:00.05
SQL>
Once it is turned on, every DDL command will be logged in the alert log file and also the log.xml file.

NO.3 Identify three valid options for adding a pluggable database (PDB) to an existing multitenant
container database
(CDB).
A. Use the DBMS_PDB package to plug an Oracle 12c non-CDB database into an existing CDB.
B. 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.
C. Use the DBMS_PDB package to clone an existing PDB.
D. Use the CREATE DATABASE . . . ENABLE PLUGGABLE DATABASE statement to provision a PDB by
copying file from
the SEED.
E. Use the CREATE PLUGGABLE DATABASE statement to create a PDB using the files from the SEED.
Answer: A,C,E
Explanation:
Use the CREATE PLUGGABLE DATABASE statement to create a pluggable database (PDB).
This statement enables you to perform the following tasks:
* (A) Create a PDB by using the seed as a template
Use the create_pdb_from_seed clause to create a PDB by using the seed in the multitenant container
database (CDB)
as a template. The files associated with the seed are copied to a new location and the copied files are
then associated
with the new PDB.
* (C) Create a PDB by cloning an existing PDB
Use the create_pdb_clone clause to create a PDB by copying an existing PDB (the source PDB) and
then plugging the
copy into the CDB. The files associated with the source PDB are copied to a new location and the
copied files are
associated with the new PDB. This operation is called cloning a PDB.
The source PDB can be plugged in or unplugged. If plugged in, then the source PDB can be in the
same CDB or in a
remote CDB. If the source PDB is in a remote CDB, then a database link is used to connect to the
remote CDB and copy
the files.
* Create a PDB by plugging an unplugged PDB or a non-CDB into a CDB
Use the create_pdb_from_xml clause to plug an unplugged PDB or a non-CDB into a CDB, using an
XML metadata file.

NO.4 Which two statements are true concerning the Resource Manager plans for individual
pluggable databases (PDB
plans) in a multitenant container database (CDB)?
A. If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is
dynamically calculated.
B. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups
across all PDBs
in the CDB.
C. 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.
D. 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.
E. In a PDB plan, subplans may be used with up to eight consumer groups.
Answer: C,D

1z1-062 試験   1z1-062 知識   
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

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