2014年3月31日星期一

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Code d'Examen: EX200
Nom d'Examen: RedHat (Red Hat Certified System Administrator - RHCSA)
Questions et réponses: 24 Q&As

EX200 Démo gratuit à télécharger: http://www.pass4test.fr/EX200.html

NO.1 Configure your Host Name, IP Address, Gateway and DNS.
Host name: station.domain40.example.com
/etc/sysconfig/network
hostname=abc.com
hostname abc.com
IP Address:172.24.40.40/24
Gateway172.24.40.1
DNS:172.24.40.1
Answer:
# cd /etc/syscofig/network-scripts/
# ls
# vim ifcfg-eth0 (Configure IP Address, Gateway and DNS) IPADDR=172.24.40.40
GATEWAY=172.24.40.1
DNS1=172.24.40.1
# vim /etc/sysconfig/network
(Configure Host Name)
HOSTNAME= station.domain40.example.com
OR
Graphical Interfaces:
System->Preference->Network Connections (Configure IP Address, Gateway and DNS) Vim
/etc/sysconfig/network
(Configure Host Name)

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NO.2 Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users: harry, Natasha is the admin group. The user:
tom's login shell should be non-interactive.
Answer:
# useradd -G admin harry
# useradd -G admin natasha
# useradd -s /sbin/nologin tom
# id harry;id Natasha (Show additional group)
# cat /etc/passwd
(Show the login shell)
OR
# system-config-users

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Les meilleures Oracle 1Z1-054 examen pratique questions et réponses

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Code d'Examen: 1Z1-054
Nom d'Examen: Oracle (Oracle Database 11g: Performance Tuning)
Questions et réponses: 192 Q&As

1Z1-054 Démo gratuit à télécharger: http://www.pass4test.fr/1Z1-054.html

NO.1 View Exhibit1 to examine the description of the CUSTOMERS table.
You observed that optimizer selectivity is not accurate when the CUST_STATE_PROVINCE and
COUNTRY_ID columns are used together in the WHERE clause of a query.
View Exhibit2 to examine the query execution plan and the commands executed to gather the statistics.
The optimizer predicts that 20 rows will be processed rather than the 3,341 rows, which is the actual
number of rows returned from the table.
What can you do to make the optimizer detect the actual number of rows?
A. Set the STATISTICS_LEVEL parameter to ALL.
B. Set the OPTIMIZER_USE_PENDING_STATISTICS parameter to FALSE.
C. Create extended statistics for the CUST_STATE_PROVINCE and COUNTRY_ID columns.
D. Increase the STALE_PERCENT value for the CUSTOMERS table by using the
DBMS_STATS.SET_TABLE_PREFS procedure.
ANSWER: C

Oracle   1Z1-054   1Z1-054 examen   certification 1Z1-054

NO.2 View Exhibit1 to examine the description of the CUSTOMERS table.
The CUSTOMERS table has been updated heavily today. In a frequently used SQL statement, you notice
that estimated rows and the actual number of rows fetched differ greatly. The COUNTRY_ID column has
an index.
View Exhibit2 and examine the query execution plan.
What would you recommend to improve the optimizer's estimation?
A. setting the STATISTICS_LEVEL parameter to ALL
B. setting the OPTIMIZER_USE_PENDING_STATISTICS parameter to FALSE
C. creating extended statistics for the CUST_LAST_NAME, CUST_ID, and CUST_TOTAL columns
D. updating the statistics for the CUSTOMERS table by using the
DBMS_STATS.GATHER_TABLE_STATS
procedure
ANSWER: D

Oracle   1Z1-054 examen   1Z1-054 examen   1Z1-054

NO.3 Examine the initialization parameter values for the instance given below:
NAME TYPE VALUE
------------------------------------ ----------- ------------------
optimizer_capture_sql_plan_baselines boolean FALSE
optimizer_dynamic_sampling integer 2
optimizer_features_enable string 11.1.0.6
optimizer_index_caching integer 0
optimizer_index_cost_adj integer 100
optimizer_mode string ALL_ROWS
db_file_multiblock_read_count integer 64
You notice that the one of the queries is using a full table scan (view Exhibit1) instead of index unique
scan (view Exhibit2). The index is present on the column that is accessed in the WHERE clause of the
query. The cost for a full table scan is more than that for an index unique scan.
Why would the optimizer choose full table scan over index unique scan? (Choose all that apply.)
A. The OPTIMIZER_INDEX_COST_ADJ initialization parameter is set to a low value.
B. The OPTIMIZER_INDEX_COST_ADJ initialization parameter is set to a high value.
C. The DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter is set to a low value.
D. The statistics for the table and all the indexes associated with the table are not current.
ANSWER: BD

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NO.4 Which three factors influence the optimizer's behavior while choosing an optimization approach and
goal for a SQL statement? (Choose three.)
A.parsing of a SQL statement
B.operating system (OS) statistics
C.object statistics in the data dictionary
D.the OPTIMIZER_MODE initialization parameter
E.optimizer SQL hints for changing the query optimizer goal
ANSWER: CDE

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NO.5 You are working on a decision support system (DSS). The index is available on the COUNTRY_ID
column of the CUSTOMERS table.
View the Exhibit and examine the parameter settings and the query execution plan.
Why is the query using a full table scan instead of an index scan?
A. because the histogram statistics for the COUNTRY_ID column are not updated
B. because the index statistics for the index on the COUNTRY_ID column are not current
C. because the DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter is set to a higher value
D. because the optimizer predicts that most of the blocks in the table are accessed. Therefore, it uses a
full table scan, even though indexes are available.
ANSWER: D

Oracle   1Z1-054 examen   1Z1-054   1Z1-054

NO.6 Examine the initialization parameter values for the instance given below:
NAME TYPE VALUE
------------------------------------ ----------- ------------------
optimizer_capture_sql_plan_baselines boolean FALSE
optimizer_dynamic_sampling integer 2
optimizer_features_enable string 11.1.0.6
optimizer_index_caching integer 0
optimizer_index_cost_adj integer 100
optimizer_mode string ALL_ROWS
db_file_multiblock_read_count integer 64
The index created on the column used in the WHERE clause of the query. You notice that the query is not
using the index. Instead of an index scan, a full table scan is used.
View the Exhibit and examine the autotrace output for a query.
What could be the reason for it? (Choose all that apply.)
A. The OPTIMIZER_INDEX_COST_ADJ initialization parameter has a low value.
B. The DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter has a low value.
C. The statistics for the table and all the indexes associated with the table are not current.
D. The table has less than DB_FILE_MULTIBLOCK_READ_COUNT blocks under the high-water mark.
ANSWER: CD

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NO.7 You are working on an online transaction processing (OLTP) system. By day most of the application
users perform queries accessing the most recently added or modified rows. The applications have most
of the queries based on multiple tables. But at night, some batch processing is also done.
Which two actions would you recommend to choose a goal for the optimizer based on the needs of your
application? (Choose two.)
A.setting the OPTIMIZER_MODE parameter to ALL_ROWS at the instance level
B.setting the OPTIMIZER_MODE parameter to FIRST_ROWS_n at the instance level
C.asking the developer to add a hint /*ALL_ROWS*/ in the long-running batch processing queries
D.asking the developer to add a hint /*FIRST_ROWS_n*/ in the long-running batch processing queries
ANSWER: BC

Oracle   1Z1-054   1Z1-054   1Z1-054

NO.8 You plan to use adaptive thresholds as part of the performance tuning activity. You decide to increase
the window size of the default moving window baseline for all metric observations and comparisons in
your database. The following error occurs when you try to increase the window size through Enterprise
Manager:
Failed to commit: ORA-13541: system moving window baseline size (1296000) greater than retention
(1036800) ORA-06512: at "SYS.DBMS_WORKLOAD_REPOSITORY", line 601 ORA-06512: at line 2
Which action would allow you to perform the preceding task successfully?
A. increasing the flashback retention period
B. increasing the retention period for SQL Management Base
C. increasing the undo retention period for the database instance
D. increasing the Automatic Workload Repository (AWR) retention period
ANSWER: D

Oracle   1Z1-054   1Z1-054   1Z1-054

NO.9 After running SQL Performance Analyzer (SPA), you observe a few regressed SQL statements in the
SPA output. Identify the two actions that you would suggest for these regressed SQL statements.
(Choose two.)
A.Running SQL Access Advisor
B.Adding them to SQL Plan Baseline
C.Submitting them to SQL Tuning Advisor
D.Running Automatic Database Diagnostic Monitor (ADDM)
ANSWER: BC

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NO.10 You are working on a development database that was upgraded to Oracle Database 11g from Oracle
Database 9i. An ADDM finding in this database says that the shared pool is inadequately sized, as shown
in the Exhibit.
You diagnosed that this is due to different kinds of workloads and this occurs only during peak hours. You
tried to resize this by shrinking the database buffer cache but that caused inadequate buffer cache
problems. The following are the related parameter settings:
SQL> show parameter sga
NAME TYPE VALUE
------------------------------ --------------- -----------------
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 300M
sga_target big integer 0
SQL> show parameter target
NAME TYPE VALUE
------------------------------ --------------- -----------------
.....
fast_start_mttr_target integer 0
memory_max_target big integer 0
memory_target big integer 0
pga_aggregate_target big integer 100M
sga_target big integer 0
You want to balance the memory between the System Global Area (SGA) components within SGA
without affecting the size of the Program Global Area (PGA).
Which action would solve this problem?
A. Set the SGA_TARGET parameter to 300M.
B. Set the SGA_MAX_SIZE parameter to 400M.
C. Set the MEMORY_TARGET parameter to 100M.
D. Set the MEMORY_MAX_TARGET parameter to 300M.
ANSWER: A

Oracle   1Z1-054 examen   1Z1-054

NO.11 View the Exhibit and examine a portion of the output obtained from the following query:
SQL> SELECT * FROM v$sys_time_model;
Select three correct interpretations of the time model statistics. (Choose three.)
A. DB time includes the wait time of all the nonidle and idle user sessions.
B. SQL execute elapsed time includes the time spent in performing fetches of query results.
C. DB CPU includes the CPU time spent on database user-level calls and background CPU time.
D. SQL execute elapsed time includes components of the hard parse elapsed time like bind elapsed time.
E. DB time includes the connection management call elapsed time excluding the background process
time.
ANSWER: BDE

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NO.12 A user in a session executed the following SQL statement to set the optimizer mode:
ALTER SESSION SET OPTIMIZER_MODE = ALL_ROWS
What impact would it have on the goal of the optimizer for that session? (Choose all that apply.)
A. Statement level OPTIMIZER_MODE hints take precedence over the session-level setting.
B. The OPTIMIZER_MODE parameter set at instance level takes precedence over the session-level
value.
C. The optimizer uses a cost-based approach, regardless of the presence of statistics; it optimizes with a
goal of best response time.
D. The optimizer uses a cost-based approach for all SQL statements in the session, regardless of the
presence of statistics; it optimizes with a goal of best throughput.
ANSWER: AD

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NO.13 Identify two correct statements about the Active Session History (ASH) data. (Choose two.)
A.A part of SGA memory is used to store ASH data as rolling buffer.
B.The ASH data can be analyzed between any two small time intervals.
C.All ASH data in memory are flushed to disk by MMON in every 3 seconds.
D.All ASH data in memory are flushed to disk by MMNL process whenever the buffer is full.
ANSWER: AB

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NO.14 View the Exhibit exhibit1 to examine the series of SQL commands and parameter settings.
View the Exhibit exhibit2 to examine the plans available in the SQL plan baseline.
The first plan (in red) is created when OPTIMIZER_MODE is set to ALL_ROWS and the second plan (in
blue) is created when OPTIMIZER_MODE is set to FIRST_ROWS.
Which SQL plan baseline would be used if the SQL query in exhibit1 is executed again when the value of
OPTIMIZER_MODE is set to FIRST_ROWS?
A. the second plan, because it is a fixed plan
B. the first plan, because it is an accepted plan
C. the second plan, because it is the latest generated plan in FIRST_ROW mode
D. A new plan, because the second plan in FIRST_ROW mode is not an accepted plan
ANSWER: B

Oracle   certification 1Z1-054   1Z1-054   1Z1-054

NO.15 View Exhibit1 and examine the indexes on the CUSTOMERS table.
The statistics for the CUSTOMERS table have been updated recently by using the following command:
SQL> EXEC DBMS_STATS.GATHER_TABLE_STATS('SH','CUSTOMERS',method_opt=>'FOR ALL
INDEXED COLUMNS SIZE AUTO');
View Exhibit2 to examine a query plan. Even though the index is present on the COUNTRY_ID and
CUST_GENDER columns, the query uses a full table scan. What could be the reason?
A. because the histogram statistics for the COUNTRY_ID column are not updated
B. because the DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter is set to a high value
C. because the optimizer calculates the cost of accessing blocks by using a full table scan to be less as
compared to index scans, even though indexes are available
D. because indexes on CUST_GENDER and COUNTRY_ID columns are of different types, the index on
the CUST_GENDER column is bitmap index, and on COUNTRY_ID columns is btree index.
ANSWER: C

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NO.16 You are working on an online transaction processing (OLTP) system. You detected free buffer waits
events for your database instance running in a machine that has multiple CPUs. You increased the
database buffer cache size as the first step. After a few hours of work on the database, further
investigation shows that the same event is being recorded.
What would be your next step to avoid this event in future?
A. Decrease the value of the DBWR_IO_SLAVES parameter.
B. Set the USE_INDIRECT_DATA_BUFFERS parameter to TRUE.
C. Increase the value of the DB_WRITER_PROCESSES parameter.
D. Increase the value of the DB_FILE_MULTIBLOCK_READ_COUNT parameter.
ANSWER: C

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NO.17 The columns CUST_CITY, CUST_STATE_PROVINCE, and COUNTRY_ID are frequently used
together in the WHERE clause of the queries. The CUSTOMERS table is a big table with 20 GB of data.
You notice that the selectivity for these three columns varies from the selectivity that the optimizer
calculates.
What would you recommend to influence the selectivity calculated by the optimizer?
A. creating function-based indexes by concatenating all the columns
B. updating histogram statistics for these columns by using the DBMS_STATS.GATHER_TABLE_STATS
procedure
C. using the DBMS_STATS.CREATE_EXTENDED_STATS function to create a virtual column and create
index on the virtual column
D. using the DBMS_STATS.CREATE_EXTENDED_STATS function to create a virtual column and the
DBMS_STATS.GATHER_TABLE_STATS procedure to collect statistics on the virtual column
ANSWER: D

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NO.18 A batch workload that historically completed in the maintenance window between 10:00 PM and
midnight is currently showing poor performance and completing at 2 AM.
To help in the diagnosis of the performance degradation, the senior DBA in your organization asks you to
execute the awrddrpt.sql script to produce a Compare Periods report.
Which two statements are true about the report produced by this script? (Choose two.)
A. It is refreshed automatically based on the moving window baseline.
B. It compares details between any two selected time periods of the same duration.
C. It normalizes the statistics by the amount of time spent on the database for each time period.
D. It compares details between two consecutive time periods of the same or different durations and is
refreshed every 60 minutes.
ANSWER: BC

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NO.19 You observed that some of the queries are performing poorly on the SALES_RECORDS table in your
database.
On further investigation, you find that at the end of each day the contents of the SALES_RECORDS table
are transferred to the SALES table and deleted from the SALES_RECORDS table. The deleted
operations cause the table to be sparsely populated.
You decided to use the ALTER TABLE...SHRINK SPACE COMPACT command to shrink the table.
Why would you choose this method? (Choose all that apply.)
A. because it can be used during peak hours
B. because it avoids unnecessary cursor invalidation
C. because it adjusts the high-water mark (HWM) immediately
D. because you have long-running queries that might span the shrink operation
E. because it does not allow any data manipulation language (DML) operations, thereby making the
shrink
operation faster
ANSWER: ABD

Oracle examen   1Z1-054 examen   1Z1-054   1Z1-054

NO.20 You work as a DBA for a company and you have the responsibility of managing one of its online
transaction processing (OLTP) systems. The database encountered performance-related problems and
you generated an Automatic Workload Repository (AWR) report to investigate it further.
View the Exhibits and examine the AWR report.
What could be the problem in this database?
A.Java pool is not configured.
B.The CPU in the system is slow.
C.The shared pool size is inadequate.
D.The database buffer cache is inadequate.
E.The OPEN_CURSORS parameter is set to a small value.
ANSWER: C

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Dernières Oracle 1Z0-141 examen pratique questions et réponses

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Code d'Examen: 1Z0-141
Nom d'Examen: Oracle (Oracle9i forma Developer:build internet applications)
Questions et réponses: 138 Q&As

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NO.1 To centralize some of your processing, you decide to write PL/SQL library modules that contain
procedures that can be called from form triggers or menu items. You need to populate some fields
based on values in other fields. Which code do you use?
A.IF FIND_ITEM('ORDERS.order_total') > 10000 THEN FIND_ITEM('ORDERS.large_order') := 'Y';
MESSAGE('WARNING - large order!'); END IF;
B.IF :ORDERS.order_total > 10000 THEN :ORDERS.large_order := 'Y'; MESSAGE('WARNING - large
order!'); END IF;
C.IF 'ORDERS.order_total' > 10000 THEN 'ORDERS.large_order' := 'Y'; MESSAGE('WARNING - large
order!'); END IF;
D.IF :ORDERS.order_total > 10000 THEN COPY('ORDERS.large_order','Y'); MESSAGE('WARNING -
large order!'); END IF;
E.IF NAME_IN('ORDERS.order_total') > 10000 THEN COPY('Y','ORDERS.large_order');
MESSAGE('WARNING - large order!'); END IF;
Correct:E

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NO.2 The two-column LOCATION Record Group has 10 rows. At run time, the user wants to mark two
or more LOCATION records for use by another Forms Builder object. The rows will be used to
construct a WHERE clause for a subsequent data block query. Which built-in enable individual
rows to be marked?
A.ADD_GROUP_COLUMN
B.SET_RECORD_PROPERTY
C.GET_GROUP_SELECTION
D.SET_GROUP_SELECTION
E.RESET_GROUP_SELECTION
F.GET_GROUP_RECORD_NUMBER
Correct:D

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.3 You have the Orders form open in Forms Builder. You create an object group in the Orders form
and you try to drag various components in the Object Navigator to the object group. Which two
components will you be unable to place in the object group? (Choose two.)
A.the Orders block of the Orders form
B.the Order_CV canvas of the Orders form
C.the When-New-Item-Instance trigger of the Order_Items.Quantity item in the Orders from
D.the When-New-Form-Instance trigger of the Orders form
E.the Product_Id item in the Order_Items block of the Orders form
Correct:C E

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.4 View the Exhibit. The EMPLOYEES table contains 100 records. You are developing a Human
Resources form that has an Employees block with properties as shown in the exhibit. When you
run the form and execute a query in the Employees block, approximately how many network
round trips will be made to the server before records are displayed in the block?
A.1
B.2
C.10
D.50
E.100
Correct:C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.5 View the Exhibit. You are running a form in debug mode, but you have not set any breakpoints
in the code. You click a button that invokes the code shown in the exhibit. While the code
executes, you decide to examine the variable values in the loop. Which menu items in the Forms
Builder Debug menu would you choose?
A.Stop, Debug Windows > Variables
B.Pause, Debug Windows > Variables
C.Stop, Debug Windows > Form Values
D.Pause, Debug Windows > Form Values
E.Step Into, Debug Windows > Variables
F.Step Into, Debug Windows > Form Values
Correct:B

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.6 Consider the following scenario: In a multiform application, the user started in FormA. 1. From
FormA, the user invoked FormB using CALL_FORM. 2. From FormB, the user invoked FormC
using OPEN_FORM. 3. From FormC, the user invoked FormD using OPEN_FORM. 4. From FormB,
the user invoked FormE using CALL_FORM. There is an additional form in the application, called
FormF. Which statement is true?
A.FormF can be invoked from FormC using CALL_FORM.
B.FormF can be invoked from FormA using OPEN_FORM.
C.FormF can be invoked from FormD using CALL_FORM.
D.FormF can be invoked from FormE using CALL_FORM.
E.FormF can be invoked from FormB using OPEN_FORM.
Correct:D

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.7 LibraryA and LibraryB are in the working directory of the Employees form. Library A is attached
to the Employees form. There is a stored procedure in the database called Raise_Salary which
must be called without any parameters. There is no Raise_Salary procedure in the form or in the
attached library. A When-Button-Pressed trigger in the Employees form contains this code:
raise_salary; Where does Forms search for the Raise_Salary procedure?
A.first in the attached library, then in the database
B.first in the form module, then in the attached library
C.first in the form module, then in the attached library, then in the database
D.first in the form module, then in the attached library, then in other libraries in the working directory, then
in the database
E.in the form module only
F.in the attached library only
G.in the database only
Correct:C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.8 Which two statements about a Non-Query Record Group are true? (Choose two.)
A.The Record Group is associated with a query at run time or at design time.
B.The Record Group can be created and modified only at run time.
C.The Record Group can be created and modified only at design time.
D.The Record Group can be created and modified at design time or at run time.
E.You can modify the structure of this Record Group by adding columns and rows.
F.The Record Group is associated with a query only at design time.
Correct:B E

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.9 You want to create a calculated item in the Control block of the Human Resources form. This
item will contain the total of employee salaries for employees in a particular department. Which
statement is true about how to create the calculated item?
A.You can create it by first creating a text item and then changing the item type.
B.You can create it in the Layout Editor using a special tool that creates a calculated item.
C.You can create it by first creating a display item and then setting appropriate properties in its Calculation
property group.
D.You can create it in the Layout Editor by selecting the Salary item of the Employees block, selecting the
Control block from the block list, clicking the Text Item tool, and drawing a text item on the canvas to
automatically calculate a sum of the selected Salary item.
Correct:C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.10 In a multiform application, one form must invoke another. The form modules are called
Customers and Orders internally, but the compiled files are saved as CUST.FMX and ORD.FMX,
respectively. There is a button in the Customers form with a When-Button-Pressed trigger to
invoke the Orders form. There is a requirement that only one Orders form can be running at a time,
so the trigger must check to see if the form is already open. If it is open, the focus must be sent to
it. If it is not open, it has to be opened. Which of these trigger codes will achieve the required
functionality?
A.IF NOT FIND_FORM('ord') THEN OPEN_FORM('ord'); ELSE GO_FORM('orders'); END IF;
B.IF ID_NULL(FIND_FORM('ord')) THEN OPEN_FORM('orders'); ELSE GO_FORM('ord'); END IF;
C.IF ID_NULL(FIND_FORM('orders')) THEN OPEN_FORM('ord'); ELSE GO_FORM('orders'); END IF;
D.IF NOT FIND_FORM('orders')) THEN OPEN_FORM('orders'); ELSE GO_FORM('ord'); END IF;
Correct:C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.11 You created a query Record Group at design time. Which built-in can you use to execute the
query defined in the Record Group object?
A.ADD_GROUP_ROW
B.POPULATE _GROUP
C.ADD_GROUP_COLUMN
D.SET_GROUP_SELECTION
E.CREATE_GROUP_FROM_QUERY
F.POPULATE _GROUP_WITH_QUERY
Correct:B

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.12 In the Orders form you define five LOVs, and you create one button to be used to display any of
the LOVs. The button is enabled only when the user navigates to a field with an attached LOV. If
the user supplies only part of the required input data, the LOVs use that input as search criteria to
automatically reduce the LOV contents. If the LOVs hold only one value that can possibly match
user-supplied input, then the LOVs auto-complete the input field and are not displayed. Which
built-in and properties should you use to display the LOVs?
A.Use the List_Values(RESTRICT) built-in, and set the Mouse Navigate property value to NO.
B.Use the List_Values(RESTRICT) built-in, and set the Mouse Navigate property value to YES.
C.Use the List_Values(NO_RESTRICT) built-in, and set the Mouse Navigate property value to NO.
D.Use the List_Values(NO_RESTRICT) built-in, and set the Mouse Navigate property value to YES.
E.Use the Show_LOV built-in, and set the Mouse Navigate property value to YES.
F.Use the Show_LOV built-in, and set the Mouse Navigate property value to NO.
Correct:A

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.13 What type of message indicates a Forms message that cannot be suppressed?
A.a Busy message
B.a level 0 message
C.a Working message
D.a level 25 message
E.a level 50 message
F.a message with a level less than 0
G.a message with a level greater than 25
H.a message with a level greater than 50
Correct:G

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.14 You are developing a Human Resources form for HR clerks to insert, update, and delete
records from the EMPLOYEES table. When the user commits records, Forms displays the default
informative message "FRM-40400: Transaction complete: records applied and saved." You want
to replace that with the message "Records inserted: Records updated: Records deleted: ", where
represents the number of records inserted, updated, and deleted. Which triggers must you create
or modify to accomplish this?
A.On-Message only
B.Post-Commit and On-Message
C.Post-Database-Commit and On-Message
D.When-Validate-Record and On-Message
E.Post-Insert, Post-Update, Post-Delete, and On-Message
Correct:E

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.15 Which two statements correctly describe the relationship between a content canvas and a
window? (Choose two.)
A.Only one content canvas can be associated with a window.
B.Only one content canvas at a time can appear in a window.
C.One or more content canvases can be associated with a window.
D.A content canvas can be associated with two or more windows.
E.A content canvas cannot be larger than the window with which it is associated.
F.A maximum of two content canvases can appear in a window at the same time.
Correct:B C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.16 You need to resize the INVENTORY tab canvas. The Viewport Width and Height properties are
200 and 300. You change the values to 150 and 120, respectively. What implication may this have
on your design?
A.Some tab pages may be obscured at run time.
B.By decreasing the Viewport Width property, some tab pages may be deleted.
C.Objects previously within the borders of a tab page may fall outside the tab page border, and you will
get compilation errors.
D.Objects previously within the borders of a tab page may fall outside the tab page border and will be
visible at run time only by navigating to them programmatically.
E.Objects previously within the borders of a tab page may fall outside the tab page border and will be
assigned to the null canvas.
Correct:C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.17 Your company assigns three possible credit ratings to customers: Poor, Good, and Excellent
(represented numerically by 1, 2, and 3). The DBA has just added a RATING column to the
CUSTOMERS table and has asked you to add an item to your form so that credit ratings can be
recorded. To restrict data entry clerks to one of these three values, you decide to create a radio
group for the Rating item. You want to allow for an undetermined (Null) credit rating, and users
should be able to update the credit rating from a value to an undetermined rating. How can you
implement this?
A.Create three radio buttons for each of the credit ratings, and set the Mapping of Other Values for the
radio group to Null.
B.Create three radio buttons for each of the credit ratings, and set the Mapping of Other Values for the
radio group to one of the credit rating values.
C.Create four radio buttons, and leave blank the value for the undetermined credit rating.
D.Choose a different type of input item, because radio groups do not allow entry and update of null values.
Correct:C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.18 The Warehouse.fmb module contains two data blocks. You want to display items from each
data block on separate content canvases. You must ensure that both content canvases are visible
together at run time. Which two statements about content canvases are correct? (Choose two.)
A.A window cannot display more than one content canvas during a run time session.
B.A content canvas can be associated with a window by setting the Window property of the canvas.
C.Two or more content canvases can be displayed by associating each of them with a different window.
D.A content canvas can be associated with a window by setting the Primary Canvas property of the
window.
E.A content canvas can be associated with two or more windows by setting the Primary Canvas property
of the windows.
F.Two or more content canvases can be displayed by setting their viewports to be smaller than the
window with which they are to be associated.
Correct:B C

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.19 View the Exhibit. You are coding a When-New-Form-Instance trigger to populate a hierarchical
tree item called Emp_Tree that should initially appear as shown in the exhibit. Mr. King, the
president of the company, is the only employee who does not have a manager. In the trigger, you
declare a variable called rg_emps that is of the RECORDGROUP data type. You will use this record
group to populate the tree. You use the following code to create the record group: rg_emps :=
Create_Group_From_Query('rg_emps', 'select 1, level, last_name, NULL, to_char(employee_id)
from employees connect by prior employee_id = manager_id start with manager_id is null'); You
then programmatically populate the record group, and then populate the tree with the record
group. You run the form to test it. Will the tree initially appear as shown? If not, why not?
A.Yes, the tree will appear as shown.
B.No. The first element selected in the select statement should be 4 because you want four levels of the
tree to be displayed.
C.No. You should eliminate the last element selected in the select statement, because you do not want to
display the employee ID.
D.No. The "connect by" statement should be "connect by prior manager_id = employee_id".
Correct:A

Oracle examen   1Z0-141   1Z0-141 examen   1Z0-141   1Z0-141 examen

NO.20 View the Exhibit. You are modifying the New_Orders form. You want to change the navigation
order of the Orders block so that Order_Status is between Order_Date and Order_Mode in the
navigation order. You attempt to drag the Order_Status item in the Object Navigator (as shown in
the exhibit), but Forms does not allow you to release the item in the desired position. Why is this
happening, and what can you do to change the navigation order?
A.Because the data block is subclassed, you cannot change the order of items in the object navigator, but
you can change item properties to affect the navigation order.
B.Because the data block is subclassed, you can only drag objects to a lower position in the Object
Navigator, so you can drag Order_Mode and Customer_Id to a position below Order_Status.
C.Because the data block is subclassed, you will have to delete the object and then create it again in the
desired position.
D.Because the item is subclassed, you cannot change any of its properties.
Correct:A

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Code d'Examen: 1Z0-402
Nom d'Examen: Oracle (Oracle Enterprise Linux: Fundamentals)
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NO.1 View the Exhibit.
What are the privileges granted to the user smith on the /tmp/backup directory?
A. He can only list the contents of /tmp/backup.
B. He can only navigate to the /tmp/backup directory.
C. He can change to and copy contents from the /tmp/backup directory.
D. He can only change to and from the /tmp/backup directory but cannot list its contents.
Answer: A

Oracle examen   1Z0-402 examen   certification 1Z0-402   1Z0-402

NO.2 You executed the following command to verify the integrity of sendmail:
What do infer about the /var/log/mail/statistics file from the output?
A. The permissions, user ownership, and file type have changed.
B. The permissions, group ownership and file type have changed.
C. The user ownership, group ownership and file type have changed.
D. The MD5 signature, file size, and modification time have changed.
Answer: D

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NO.3 Multiple users can share a UNIX machine. This is made possible by the OS by using one user's idle
time to service other users. What is this feature of an operating system identified as?
A. data sharing
B. time sharing
C. one-time initialization
D. light weight kernel threading
E. interrupt driven process handling
Answer: B

Oracle   1Z0-402   1Z0-402

NO.4 You executed the following command on a Linux machine:
sed s/hello/fun/g file1.txt | tr a-z A-Z > file2.txt
What three things would this command do? (Choose three.)
A. Save all changes to file2.txt.
B. Translate all uppercase characters to lowercase.
C. Translate all lowercase characters to uppercase.
D. Modifies file1.txt and creates file2.txt.
E. Replace all occurrences of the entry hello with the entry fun.
F. Replace all occurrences of the entry fun with the entry hello.
Answer: ACE

Oracle   1Z0-402   1Z0-402

NO.5 What is the minimum number of disk partitions required to have a successful Linux installation?
A. 2 (two)
B. 4 (four)
C. 1 (one)
D. 3 (three)
Answer: C

Oracle examen   1Z0-402   1Z0-402 examen   1Z0-402

NO.6 You have logged in as user smith at tty1 terminal and issued the following incomplete command at the
bash prompt:
The shell displays the default secondary prompt ">". What would you do to make "=>" as the default
secondary prompt temporarily only for user smith and for the tty1 terminal current session?
A. Redefine PS1==>.
B. Redefine PS2==>.
C. Redefine PS3==>.
D. Redefine PS4==>.
Answer: B

Oracle   1Z0-402 examen   1Z0-402   1Z0-402

NO.7 Match the bash file with its description:
A. 1-c, 2-d, 3-b, 4-a
B. 1-b, 2-c, 3-a, 4-d
C. 1-c, 2-d, 3-a, 4-b
D. 1-b, 2-c, 3-d, 4-a
Answer: C

Oracle   1Z0-402   certification 1Z0-402

NO.8 View the Exhibit.
The shell script is executed using the default shell interpreter with the input as w. What will be the output
of the script based on this input?
A. It will print the current date and time.
B. It will list all the currently logged in users.
C. It will show that the input is not a valid option.
D. It will print the currently logged in users, current date, and time.
E. It will not show any result because the case block is terminated with an esac.
Answer: C

certification Oracle   1Z0-402   1Z0-402 examen   1Z0-402

NO.9 You have logged in as normal user bob with the default login shell. An attempt by bob to change the
default shell to /bin/sh fails with an error.
What could be the possible reason?
A. The SUID bit is not set on chsh by default.
B. The /bin/sh entry is not listed in /etc/shells file.
C. bob does not have the permissions to change the shell by default.
D. bob does not have read permissions on the/etc/shells file by default.
Answer: B

Oracle   1Z0-402   certification 1Z0-402   1Z0-402 examen

NO.10 Which statements are true about xauth? (Choose all that apply.)
A. It stores all tokens in a file on the system.
B. It must be available to use X11 forwarding.
C. It distributes token on a host-by-host basis.
D. It can be used to control token-based access control.
E. It is not possible to install just xauth without installing the entire X server.
Answer: ABD

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NO.11 As root user you have set the environment variable HISTIGNORE="ls:man:pwd:cat" with the other
history-related shell variables at their default. What impact does it have on shell history?
A. History will ignore only the commands listed in the HISTIGNORE variable.
B. History will save only the first occurrence of the commands listed in the HISTIGNORE variable.
C. History will ignore only the commands, issued with any valid switch, listed in the HISTIGNORE
variable.
D. History will save only the first occurrence of the commands, issued with any valid switch, listed in the
HISTIGNORE variable.
Answer: A

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NO.12 Which three statements are true about the mount command? (Choose three.)
A. It supports labels for mounting.
B. It can be used only by root to mount the local file system.
C. By default it can be used by an ordinary user to mount the local file system.
D. It will list all the currently mounted file systems, if executed without any arguments.
E. It will list only the file systems listed in /etc/fstab if executed without any arguments
Answer: ABD

Oracle   1Z0-402   1Z0-402   1Z0-402

NO.13 UNIX was known as the most stable operating system ever released. Identify two major design
principles that help attain this stability. (Choose two.)
A. easily modifiable end user programs
B. all configuration data stored in binary files
C. entire policy decisions made by the kernel
D. everything in UNIX is either a file or a process
Answer: AD

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NO.14 The GNU project was started by Free Software Foundation (FSF) with a goal to create a Free UNIX
Clone.
What do you understand by the term Free as per the terms of FSF?
A. The source code will be provided free of cost with the software.
B. The software is fully free and is charged only to fix breakdowns.
C. The software is distributed free in runnable (installable) form with no cost.
D. The software is distributed free but does not offer the freedom to redistribute it.
Answer: A

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NO.15 Which statements are true about the File Extensions? (Choose all that apply.)
A. File extensions are just part of the file name.
B. File extensions are cared by all applications.
C. File content depends upon the file extensions.
D. File extensions do not always say what the file is.
E. File extensions have no special meaning to the kernel.
Answer: ADE

Oracle   1Z0-402 examen   1Z0-402 examen   1Z0-402

NO.16 As user smith you want the CPU utilization of all the users logged on to server1 server. You want the
information available automatically as soon as you login to the bash login shell and want the information
available only to smith.
What would you do on server1, which has all the default shell configuration files, to accomplish the task?
A. Add the w command to ~/.profile file.
B. Add the who command to ~/.profile file.
C. Add the w command to ~/.bash_profile file.
D. Add the who command to ~/.bash_profile file.
Answer: C

Oracle examen   certification 1Z0-402   certification 1Z0-402   1Z0-402   1Z0-402

NO.17 Examine the following output:
Which columns would you analyze to find the most recently invoked shell?
A. Analyze only the PID.
B. Analyze only the UID.
C. Analyze only the PPID.
D. Analyze both the UID and PID.
E. Analyze both the PID and PPID.
F. Analyze both the UID and PPID.
Answer: E

Oracle examen   1Z0-402 examen   1Z0-402 examen

NO.18 You have issued the following command:
mkdir -p test/a{dax,connor,bryan}g/vo{in,out,tmp}
Which of the following directories will it create? (Choose all that apply.)
A. test/voin/adaxg
B. test/adaxg/voout
C. test/aconnorg/voin
D. test/adaxnnorg/voinout
E. test/aconnoyang/vointmp
Answer: BC

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NO.19 As user smith you want to log in to a remote machine in a securely encrypted channel. Which utility
would you use for the purpose?
A. ssh
B. ftp
C. telnet
D. rlogin
Answer: A

Oracle   1Z0-402   1Z0-402   1Z0-402 examen

NO.20 As root you have changed the default login shell to one of the shells listed in /etc/shells file. Which file
entry is modified as a result of this?
A. /etc/shadow
B. /etc/shells
C. /etc/passwd
D. /etc/default/useradd
Answer: C

Oracle   certification 1Z0-402   1Z0-402   1Z0-402   certification 1Z0-402

NO.21 A new user smith wants to customize the bourne shell by creating a new alias for the ls -l command.
He wants to make the new alias persistent across logouts and also reboots.
What could be done to make the new alias persistent only for smith?
A. Add the new alias to ~/.bashrc.
B. Add the new alias to ~/.profile.
C. Add the new alias to /etc/profile.
D. Add the new alias to ~/bash_profile.
Answer: B

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NO.22 Why is a Linux operating system always developed and released under a common standard known as
Linux Standard Base (LSB)?
A. to avoid interoperability
B. to avoid POSIX Compliance
C. to ensure application-level diversity
D. to ensure compatibility among distributions
Answer: D

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NO.23 Identify the option that has the correct match for an Enterprise Linux standard/feature with its
description:
A. 1-b, 2-d, 3-a, 4-c
B. 1-d, 2-a, 3-b, 4-c
C. 1-c, 2-a, 3-d, 4-b
D. 1-b, 2-c, 3-d, 4-a
Answer: B

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NO.24 When bash is invoked as an interactive login shell, what is the order in which the bash configuration
files are read with the assumption that all the files exist and are readable?
A. ~/.bash_profile,~/.bash_login,/etc/profile,~/.profile
B. /etc/profile,~/.bash_profile,~/.bash_login,~/.profile
C. ~/.profile,~/.bash_login,/etc/profile,~/.bash_profile
D. ~/.bash_login,/etc/profile,~/.profile,~/.bash_profile
Answer: B

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NO.25 Identify the two main branches from the UNIX family tree, where the cross-pollination between these
branches was responsible for making UNIX so powerful. (Choose two.)
A. MIT
B. GNU
C. BSD
D. POSIX
E. BESYS
F. System V
Answer: CF

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NO.26 Identify the shareable directories according to File system Hierarchy Standard (FHS).
(Choose all that apply.)
A. /etc
B. /usr
C. /var/run
D. /var/lock
E. /var/mail
F. /etc/sysconfig
Answer: BE

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NO.27 You have to start a process in the bash shell and at the same time want to work in the shell. How would
you achieve this without terminating the process?
A. Press [Ctrl] + [y] while the process is running.
B. Press [Ctrl] + [d] while the process is running.
C. Press [Ctrl] + [z] while the process is running.
D. Press [Ctrl] + [c] while the process is running.
Answer: C

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NO.28 As an administrator you want to make sure that accidentally you do not delete files using rm command.
You also want to make sure that even the use of rm command without any valid switches prompts for
confirmation before file deletion.
Which option would help you achieve this task?
A. alias rm="rm -i".
B. alias rm="rm -f".
C. alias rm="rm -r".
D. alias rm="rm -v".
Answer: A

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NO.29 As a root user you want to modify the default shell prompt to include the hostname as part of the
prompt. Also you want the change in the hostname to reflect on the prompt immediately.
Which option would help you achieve this task?
A. PS2='[`hostname`]'
B. PS1='[`hostname`]'
C. PS2=''[`hostname`]''
D. PS1=''[`hostname`]''
Answer: B

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NO.30 You have set HISTCONTROL=ignoreboth. What are the implications of this setting on history?
A. It saves both duplicates and commands prefixed with a space.
B. It ignores commands prefixed with a space but saves duplicates.
C. It ignores duplicates but saves the commands prefixed with space.
D. It ignores both the duplicate commands and commands prefixed with a space.
Answer: D

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Code d'Examen: 1Z0-055
Nom d'Examen: Oracle (Oracle Database 11g: New Features for 9i OCPs)
Questions et réponses: 150 Q&As

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NO.1 Which method would you use to undo the changes made by a particular transaction without affecting
the changes made by other transactions?
A. point-in-time recovery
B. execute the ROLLBACK command with transaction number
C. flashback the database to before the transaction was committed
D. determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and
use them for recovery
Answer: D

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NO.2 Which are the prerequisites for performing flashback transactions on your database? (Choose all that
apply.)
A. Supplemental log must be enabled.
B. Supplemental log must be enabled for the primary key.
C. Undo retention guarantee for the database must be configured.
D. Execute permission on the DBMS_FLASHBACK package must be granted to the user.
Answer: ABD

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NO.3 View the Exhibit to examine the details for an incident.
Which statement is true regarding the status of the incident?
A. The DBA is working on the incident and prefers that the incident be kept in the ADR.
B. The incident is now in the Done state and the ADR can select the incident to be purged.
C. The incident has been newly created and is in the process of collecting diagnostic information.
D. The data collection for the incident is complete and the incident can be packaged and sent to Oracle
Support.
Answer: D

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NO.4 Examine the following PL/SQL block:
SET SERVEROUTPUT ON
SET LONG 10000
DECLARE report clob;
BEGIN
report := DBMS_SPM.EVOLVE_SQL_PLAN_BASELINE();
DBMS_OUTPUT.PUT_LINE(report);
END;
Which statement describes the effect of the execution of the above PL/SQL block?
A. The plan baselines are verified with the SQL profiles.
B. All fixed plan baselines are converted into nonfixed plan baselines.
C. All the nonaccepted SQL profiles are accepted into the plan baseline.
D. The nonaccepted plans in the SQL Management Base are verified with the existing plan baselines.
Answer: D

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NO.5 View the Exhibit exhibit1.
In the CUSTOMERS_OBE table, when the value of CUST_STATE_PROVINCE is "CA", the value of
COUNTRY_ID is "US"
View the Exhibit exhibit2 to examine the commands and query plans.
The optimizer can sense 8 rows instead of 29 rows, which is the actual number of rows in the table. What
can you do to make the optimizer detect the actual selectivity?
A. Set the STATISTICS_LEVEL parameter to TYPICAL.
B. Change the STALE_PERCENT value for the CUSTOMERS_OBE table.
C. Set the OPTIMIZER_USE_PENDING_STATISTICS parameter to FALSE.
D. Create extended statistics for the CUST_STATE_PROVINCE and COUNTRY_ID columns.
Answer: D

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NO.6 While deploying a new application module, the software vendor ships the application software along
with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe
the consequences? (Choose two.)
A. The plan baselines can be evolved over time to produce better performance.
B. The newly generated plans are directly placed into the SQL plan baseline without being verified.
C. The new SQL statements initially run with the plans that are known to produce good performance
under standard test configuration.
D. The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline
has been imported.
Answer: AC

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NO.7 You performed an incomplete recovery and opened the database with the RESETLOGS option. The
LOG_ARCHIVE_FORMAT parameter is set to 'ora_%t_%s_%r.log'. Which statement regarding the
archived redo log files, created in an earlier incarnation of the database, is true?
A. The archived redo log files will be overwritten.
B. The archived redo log files are deleted automatically.
C. The archived redo log files should be moved to some other location.
D. The archived redo log files are still maintained because the file names are unique.
Answer: D

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NO.8 Which setting enables the baselines by default in Oracle Database 11g?
A. setting the STATISTICS_LEVEL parameter to TYPICAL
B. adding filters to the Automatic Database Diagnostic Monitor (ADDM)
C. enabling Automated Maintenance Task using Oracle Enterprise Manager
D. setting the OPTIMIZER_USE_PENDING_STATISTICS parameter to TRUE
Answer: A

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NO.9 You want to convert your existing non-ASM files to ASM files for the database PROD. Which method or
command would you use to accomplish this task?
A. Data Pump Export and Import
B. conventional export and import
C. the CONVERT command of RMAN
D. the BACKUP AS COPY.. command of RMAN
Answer: D

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NO.10 View the Exhibit to examine the error during the database startup.
You open an RMAN session for the database instance. To repair the failure, you executed the following as
the first command in the RMAN session:
RMAN> REPAIR FAILURE;
Which statement describes the consequence of the command?
A. The command performs the recovery and closes the failures.
B. The command only displays the advice and the RMAN script required for repair.
C. The command produces an error because the ADVISE FAILURE command has not been executed
before the REPAIR FAILURE command.
D. The command executes the RMAN script to repair the failure and removes the entry from the
Automatic Diagnostic Repository (ADR).
Answer: C

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NO.11 View the Exhibit for the object interdependency diagram.
The PRODUCTS table is used to create the PRODCAT_VW view.
PRODCAT_VW is used in the GET_DATA procedure.
GET_DATA is called in the CHECK_DATA function.
A new column PROD_QTY is added to the PRODUCTS table.
How does this impact the status of the dependent objects?
A. All dependent objects remain valid.
B. Only the procedure and function become invalid and must be recompiled.
C. Only the view becomes invalid and gets automatically revalidated the next time it is used.
D. Only the procedure and function become invalid and get automatically revalidated the next time they
are called.
Answer: A

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NO.12 Identify the activities performed as part of the Automatic SQL Tuning process in the maintenance
window? (Choose all that apply.)
A. generating the SQL profile
B. testing and accepting the SQL profile
C. generating a list of candidate SQLs for tuning
D. adding tuned SQL plans into the SQL plan baseline
E. tuning each SQL statement in the order of importance
F. generating baselines that include candidate SQL statement for tuning
Answer: ABCE

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NO.13 When executing a SQL workload, you choose to generate execution plans only, without collecting
execution statistics. Which two statements describe the implications of this? (Choose two.)
A. It produces less accurate results of the comparison analysis.
B. It automatically calls the SQL Tuning Advisor for recommendations.
C. It shortens the time of execution and reduces the impact on system resources.
D. Only the changes in the execution plan, and not performance regression, are detected.
Answer: AC

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NO.14 You issued the following command:
CREATE GLOBAL TEMPORARY TABLE admin_work_area
(startdate DATE,
enddate DATE,
class CHAR(20))
ON COMMIT DELETE ROWS
TABLESPACE tbs_t1;
An index is then created on the ADMIN_WORK_AREA temporary table.
Which two statements are true regarding the TBS_T1 tablespace in the above command? (Choose two.)
A. It stores only the temporary table but not its indexes.
B. It stores both the temporary table as well as its indexes.
C. It must be a nondefault temporary tablespace for the database.
D. It can be a default or nondefault temporary tablespace for the database.
E. It must be the default temporary tablespace of the user who issues the command.
Answer: BD

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NO.15 An online tablespace, TEST_TBS, is full and you realize that no server-managed tablespace
threshold alerts were generated for the TEST_TBS tablespace. What could be the reason, if the
TEST_TBS tablespace does not include autoextensible data files?
A. TEST_TBS is a small file tablespace.
B. TEST_TBS is a bigfile tablespace (BFT).
C. TEST_TBS is the default temporary tablespace.
D. TEST_TBS is a dictionary-managed tablespace.
Answer: D

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NO.16 In your database, the RESULT_CACHE_MODE parameter has been set to MANUAL in the
initialization parameter file.
You issued the following command:
SQL>SELECT /*+ RESULT_CACHE */ sale_category, sum(sale_amt)
FROM sales
GROUP BY sale_category;
Where would the result of this query be stored?
A. PGA
B. large pool
C. shared pool
D. database buffer cache
Answer: C

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NO.17 Which two statements are true with respect to the maintenance window? (Choose two.)
A. A DBA can enable or disable an individual task in all maintenance windows.
B. A DBA cannot change the duration of the maintenance window after it is created.
C. In case of a long maintenance window, all Automated Maintenance Tasks are restarted every four
hours.
D. A DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in
each window.
Answer: AD

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NO.18 While performing the backup of the flash recovery area, you notice that one of the archived redo log
files is missing. You have multiple destinations for archived redo log files. What implications does it have
on the backup of the flash recovery area?
A. The backup succeeds but it would be without the missing archived log.
B. The backup fails because one of the archived redo log files is missing.
C. The backup succeeds because it fails over to one of the alternative archived redo log destinations.
D. During backup, you are prompted for the alternative destination for the missing archived redo log file.
Answer: C

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NO.19 Which of the following information will be gathered by the SQL Test Case Builder for the problems
pertaining to SQL-related problems? (Choose all that apply.)
A. ADR diagnostic files
B. all the optimizer statistics
C. initialization parameter settings
D. PL/SQL functions, procedures, and packages
E. the table and index definitions and actual data
Answer: BCE

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NO.20 Your system has been upgraded from Oracle Database 10g to Oracle Database 11g. You imported
SQL Tuning Sets (STS) from the previous version. After changing the OPTIMIZER_FEATURE_ENABLE
parameter to 10.2.0.4 and running the SQL Performance Analyzer, you observed performance regression
for a few SQL statements. What would you do with these SQL statements?
A. Set OPTIMIZER_USE_PLAN_BASELINES to FALSE to prevent the use of regressed plans.
B. Capture the plans from the previous version using STS and then load them into the stored outline.
C. Capture the plans from the previous version using STS and then load them into SQL Management
Base (SMB).
D. Set OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES to FALSE to prevent the plans from being
loaded to the SQL plan baseline.
Answer: C

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Code d'Examen: 1Z0-026
Nom d'Examen: Oracle (Network Administration)
Questions et réponses: 128 Q&As

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NO.1 Which statement is true regarding connection breaks?
A. In-band breaks are faster than out-band breaks.
B. In-band breaks use messages that invoke operating system signals.
C. In-band breaks are issued to the server process by the operating system.
D. Out-band breaks send urgent data messages and are faster than in-band breaks.
E. There are no fundamental differences between in-band breaks and out-band breaks.
Answer: D

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NO.2 When configuring for multiple protocol interchange, what does Source_Route
indicate?
A. Enables connections through Connection Manager.
B. Identifies the service name to which the connection needs to be established.
C. Identifies the database SID to which the connection needs to be established.
D. Identifies the node and the port number on which connection manager is running.
Answer: A

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NO.3 Which two are tasks of the dispatcher process? (Choose two)
A. Receiving connection requests.
B. Placing a request in the request queue.
C. Updating the listener with new LOAD values.
D. Determining if the client request can be processed.
Answer: B, C

Oracle   1Z0-026   certification 1Z0-026

NO.4 In which file is the information that host naming is enabled stored?
A. Init.ora
B. Sqlnet.ora
C. Tnsnames.ora
D. Listener.ora
Answer: B

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NO.5 How many response queues are present in a multithreaded server environment?
A. One per system.
B. One per database.
C. One per listener.
D. One per dispatcher.
Answer: D

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NO.6 The listener audit trail provides information about every client connection request.
Which additional request about the client is NOT provided?
A. Client user ID
B. Database user name
C. Network protocol
D. Client host (platform)
Answer: B

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NO.7 Which parameter specifies the maximum number of server processes that get
pre-spawned in a dedicated server environment? (Do not use any extra words or
characters)
Answer: MTS_MAX_SERVERS

NO.8 When is the request sent to a listener?
A. After every call.
B. Before every call.
C. After name resolution.
D. Before name resolution.
Answer: C

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NO.9 Which folder would you use in the Net8 Assistant Tool to change the naming
method?
A. Profile
B. Configuration
C. Service Names
D. Oracle Names Server
Answer: A

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NO.10 Which feature needs to be configured in Connection Manager to enable your system to
scale to a large number of users?
A. Connection Pooling
B. Network access control
C. Connection concentration
D. Multiple protocol interchange
Answer: C

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NO.11 You setup MTS for the PROD database, which uses multiple listeners to handle
requests. Which listener control command can you issue for each listener that the
dispatchers have registered with all listeners used by the database?
A. DISPATCHER<listener name>
B. SHOW ALL
C. SERVICES<listener name>
D. SHOW SERVICES<listener name>
E. SHOW DISPATCHER<listener name>
Answer: C

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NO.12 A DBA has installed and configured Net8 TCP/IP on the client and the server but is
still unable to connect from Windows NT Workstation using SQL*Plus to an Oracle
instance running on a remote UNIX server. However there are no problems when
using FTP between two nodes. What actions next taken by the DBA could make
progress towards diagnosing the problem?
A. Attempting to PING the server from the client.
B. Checking to see if the DNS configuration is correct.
C. Connecting by using the Net8 Assistant Test Connection feature.
D. Checking to see if the TNS ping process is running on the server.
Answer: C

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NO.13 Which naming method simplifies administrative tasks when configuration changes
need to be made available to all clients immediately?
A. Host Naming
B. Local Naming
C. Service Naming
D. Centralized Naming
Answer: D

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NO.14 Which NAMESCTL command can be used to manually force Names Server discovery?
A. Flush
B. Reload
C. Reorder_NS
D. Discover_NS
E. Start_client_cache
Answer: C

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NO.15 Which statement regarding the logging and tracing of Net8 is True?
A. Logging cannot be disabled on client.
B. There are four levels of logging that can be set.
C. Tracing can take up significant disk space but has little impact on performance.
D. There is no way to prevent new trace data from being appended to the same file with
each new session.
Answer: B

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NO.16 The initial number of dispatchers is set to 50. Because of the load on the dispatcher
processes the DBA needs to decrease the number of dispatchers. Which two
recommended procedures could be used? (Choose two)
A. Issue the ALTER SYSTEM command to remove dispatchers.
B. Issue the ALTER SESSION command to remove dispatchers.
C. Edit the MTS_DISPATCHERS parameter and bounce the database.
D. Edit the MTS_MAX_DISPATCHERS parameter and bounce the database.
E. Edit the MTS_MIN_DISPATCHERS parameter and bounce the database.
Answer: A, C

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NO.17 Which are two features of Connection Manager? (Choose two)
A. Connection exchange.
B. Connection resolution.
C. Connection multiplexing.
D. Connection cross-linking.
E. Protocol transformation.
F. Protocol interchange capability.
Answer: C, F

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NO.18 You are using host naming. Which components need to be installed?
A. Net8 on the server and the client machine.
B. TCP/IP and Net8 only on the client machine.
C. TCP/IP and Net8 only on the server machine.
D. TCP/IP and Net8 on the server and the client machine.
Answer: D

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NO.19 If a password is configured, which command must be issued first when you need to
stop the listener?
A. Stop
B. Password
C. Set Password
D. Shutdown immediate
Answer: C

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NO.20 Which process picks up a request from a response queue?
A. Client process
B. Listener process
C. Dispatcher process
D. Shared server process
Answer: C

Oracle   1Z0-026 examen   1Z0-026   1Z0-026

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