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Exam Code: PGCES-02
Exam Name: PostgreSQL-CE (PostgreSQL CE 8 Silver)
One year free update, No help, Full refund!
Total Q&A: 145 Questions and Answers
Last Update: 2013-10-31

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NO.1 The "animal" table consists of the following data: Select the correct result returned by executing the
following SQL statement: SELECT name FROM animal ORDER BY weight DESC LIMIT 2 OFFSET 1;
A.A syntax error will occur.
Answer:A

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NO.2 The following is the result of executing the createlang command which is installed with PostgreSQL.
$ createlang -U postgres --list mydb Procedural Languages Name | Trusted? ---------+--------- plpgsql | yes
Select two correct statements from below.
A.The procedural language plpgsql is installed in the database mydb using the above command.
B.The procedural language plpgsql can be used in the database mydb.
C.plpgsql is a trusted language, so it can execute the OS commands on the server side.
D.plpgsql is a trusted language, so it can read/write OS files on the server side.
E.plpgsql is a safe language with restricted operations.
Answer:B E

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NO.3 Select two suitable statements regarding creating a new table.
A.There is no upper limit to the number of columns in a table.
B.A newly created table is empty and has 0 rows.
C.You can only use alphabetic characters for a table name.
D.The row name must be within 16 characters.
E.The SQL 'CREATE TABLE' statement is used to create a new table.
Answer:B E

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NO.4 Select two incorrect statements concerning PostgreSQL license.
A.It can be used freely.
B.It can be duplicated freely.
C.It can be freely redistributed.
D.Developers are responsible for its maintenance support.
E.Developers are only responsible for handling its crucial faults.
Answer:D E

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NO.5 Four SQL statements were executed in the following order. CREATE TABLE foo (bar INT); ALTER
TABLE foo ALTER bar TYPE BIGINT; ALTER TABLE foo ADD baz VARCHAR(5); ALTER TABLE foo
DROP bar; Select two SQL statements that generate an error when executed.
A.INSERT INTO foo VALUES ('12345');
B.INSERT INTO foo VALUES ('5000000000');
C.INSERT INTO foo VALUES ('ABC');
D.INSERT INTO foo VALUES (2000000000);
E.INSERT INTO foo VALUES (NULL);
Answer:B D

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NO.6 The following SQL statements were executed using psql. Select the appropriate statement about the
result. LISTEN sign_v; BEGIN; NOTIFY sign_v; COMMIT; LISTEN sign_v;
A.At the point that 'NOTIFY sign_v' is executed, a message that starts with "Asynchronous notification
'sign_v' received" is output.
B.At the point that 'COMMIT' is executed, a message that starts with "Asynchronous notification 'sign_v'
received" is output.
C.At the point that 'SELECT * FROM pg_user;" is executed, a message that starts with "Asynchronous
notification 'sign_v' received" is output.
D.When 'LISTEN sign_v' is executed for the second time, a message that starts with "Asynchronous
notification 'sign_v' received" is output.
E.The message "Asynchronous notification 'sign_v' received" is not received while in this connection.
Answer:B

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NO.7 Select two suitable statements about sequences.
A.A sequence always returns a 4-byte INTEGER type value, so the maximum value is 2147483647.
B.A sequence is defined by 'CREATE SEQUENCE', and deleted by 'DROP SEQUENCE'.
C.Although the "nextval" function is called during a transaction, it will have no effect if that transaction is
rolled back.
D.A sequence always generates 0 or consecutive positive numbers.
E.A sequence number can be set by calling the "setval" function.
Answer:B E

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NO.8 Select one incorrect statement concerning the relational data model.
A.It expresses the real world in a collection of 2-dimensional tables called a relation.
B.It is a model based on set theory.
C.It has a logical structure independent of physical data structure.
D.It is made up of a multiple stage hierarchy where each of the set elements has parent child relationships.
E.It is a model that was proposed by E.F. Codd in 1970.
Answer:D

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NO.9 Select two suitable statements regarding the data types of PostgreSQL.
A.One field can handle up to 1GB of data.
B.'n' in CHARACTER(n) represents the number of bytes.
C.Only the INTEGER type can be declared as an array.
D.There is a non-standard PostgreSQL data type, called Geometric data type, which handles
2-dimensional data.
E.A large object data type can be used to store data of unlimited size.
Answer:A D

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NO.10 The table "score" is defined as follows: gid | score -----+------ 1 | 70 1 | 60 2 | 100 3 | 80 3 | 50 The
following query was executed. Select the number of rows in the result. SELECT gid, max(score) FROM
score GROUP BY gid HAVING max(score) > 60;
A.1 row
B.2 rows
C.3 rows
D.4 rows
E.5 rows
Answer:C

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NO.11 The table "custom" is defined below. The "id" column and "introducer" column are of INTEGER type,
and the "email" column is of TEXT type. id | email | introducer ----+----------------+----------- 2 |
aaa@example.com | 1 3 | bbb@example.com | 2 4 | ccc@example.com | 2 Three SQL statements were
executed in the following order: INSERT INTO custom SELECT max(id) 1, 'ddd@example.com', 4 FROM
custom; UPDATE custom SET introducer = 999 WHERE email = 'bbb@example.com'; DELETE FROM
custom WHERE introducer NOT IN (SELECT id FROM custom); Select the number of rows in the
"custom" table after the execution.
A.0 rows
B.1 row
C.2 rows
D.3 rows
E.4 rows
Answer:C

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NO.12 A table named "sample" is defined as below. Select two statements which will generate a constraint
error. CREATE TABLE sample ( i INTEGER PRIMARY KEY, j INTEGER, CHECK ( i > 0 AND j < 0 ) );
A.INSERT INTO sample VALUES (1, 0);
B.INSERT INTO sample VALUES (2, -2);
C.INSERT INTO sample VALUES (3, NULL);
D.INSERT INTO sample VALUES (NULL, -4);
E.INSERT INTO sample VALUES (5, -5);
Answer:A D

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NO.13 Given the following two table definitions, select one SQL statement which will cause an error. CREATE
TABLE sample1 (id INTEGER, data TEXT); CREATE TABLE sample2 (id INTEGER);
A.SELECT id AS data, data FROM sample1;
B.SELECT id, id FROM sample1;
C.SELECT s1.id, s2.id FROM sample1 AS s1, sample1 AS s2;
D.SELECT s1.id, s2.id FROM sample1 s1, sample2 s2;
E.SELECT s1.id, s2.data FROM sample1 s1, sample2 s2;
Answer:E

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NO.14 The "sample" table consists of the following data: How many rows are returned by executing the
following SQL statement? SELECT * FROM sample WHERE v ~ 'ab';
A.0 rows
B.1 row
C.2 rows
D.3 rows
E.4 rows
Answer:C

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NO.15 Select two incorrect statements regarding 'DOMAIN'.
A.When defining a domain, you can add a default value and constraints to the original data.
B.Domain is a namespace existing between databases and objects such as tables.
C.A domain is created by 'CREATE DOMAIN'.
D.A domain can be used as a column type when defining a table.
E.To define a domain, both input and output functions are required.
Answer:B E

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NO.16 Select an incorrect statement regarding the following SQL statement. Note that "user_view" is a view.
CREATE OR REPLACE RULE rule_1 AS ON UPDATE TO user_view DO INSTEAD NOTHING;
A.It is defining a rule "rule_1".
B.It will replace "rule_1" if it already exists.
C.Executing 'UPDATE user_view' will no longer output errors.
D.When executing 'UPDATE user_view', data is updated in the table that is the origin of the view.
E.'DROP RULE rule_1 ON user_view' deletes the above definition.
Answer:D

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NO.17 Select the most suitable statement about the PostgreSQL license from below.
A.PostgreSQL is distributed under the GPL license.
B.PostgreSQL is distributed under the PostgreSQL license.
C.PostgreSQL is distributed under the LGPL license.
D.PostgreSQL is distributed under the BSD license.
E.PostgreSQL is distributed under the X11(MIT) license.
Answer:D

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NO.18 Select two transaction isolation levels supported in PostgreSQL.
A.DIRTY READ
B.READ COMMITTED
C.REPEATABLE READ
D.PHANTOM READ
E.SERIALIZABLE
Answer:B E

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NO.19 Select two correct descriptions about views.
A.A view is created by 'DECLARE VIEW', and deleted by 'DROP VIEW'.
B.A view is a virtual table which does not exist.
C.A view is created to simplify complicated queries.
D.You can create a view with the same name as already existing tables.
E.A view only exists while the postmaster is running, and is deleted when the postmaster stops.
Answer:B C

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NO.20 Table "t1" is defined as follows: CREATE TABLE t1 (value VARCHAR(5)); A set of SQL statements were
executed in the following order. Select the number of rows that table "t1" has after execution. BEGIN;
INSERT INTO t1 VALUES ('AA'); SAVEPOINT point1; INSERT INTO t1 VALUES ('BB'); SAVEPOINT
point2; INSERT INTO t1 VALUES ('CC'); ROLLBACK TO point1; INSERT INTO t1 VALUES ('DD'); END;
A.1 row
B.2 rows
C.3 rows
D.4 rows
E.0 rows
Answer:B

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NO.21 Select the correct SQL statement which concatenates strings 'ABC' and 'abc' to form 'ABCabc'.
A.SELECT 'ABC' . 'abc';
B.SELECT cat('ABC', 'abc') FROM pg_operator;
C.SELECT 'ABC' 'abc';
D.SELECT 'ABC' 'abc' FROM pg_operator;
E.SELECT 'ABC' || 'abc';
Answer:E

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NO.22 Select two suitable statements about major version upgrades of PostgreSQL from below.
A.You can use the databases of the old major version.
B.To use the data from the old version, you only need to replace the program.
C.To use the data from the old version, you need to conduct a backup and restore.
D.There is a possibility of configuration parameter changes after major version upgrades.
E.Upgrade scripts can be executed while the old version of PostgreSQL is running.
Answer:C D

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NO.23 Select two suitable statements regarding the following SQL statement: CREATE TRIGGER trigger_1
AFTER UPDATE ON sales FOR EACH ROW EXECUTE PROCEDURE write_log();
A.It is defining a trigger "trigger_1".
B.Every time 'UPDATE' is executed on the "sales" table, the "write_log" function is called once.
C.The "write_log" function is called before 'UPDATE' takes place.
D.'UPDATE' is not executed if "write_log" returns NULL.
E.'DROP TRIGGER trigger_1 ON sales;' deletes the defined trigger.
Answer:A E

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NO.24 Select the most suitable statement about PostgreSQL from below.
A.PostgreSQL is a card-type database management system.
B.PostgreSQL is a hierarchical database management system.
C.PostgreSQL is a network-type database management system.
D.PostgreSQL is an XML database management system.
E.PostgreSQL is a relational database management system.
Answer:E

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NO.25 Select three SQL statements which return NULL.
A.SELECT 0 = NULL;
B.SELECT NULL != NULL;
C.SELECT NULL IS NULL;
D.SELECT NULL;
E.SELECT 'null'::TEXT;
Answer:A B D

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NO.26 PostgreSQL can use an index to access a table. Select two incorrect statements about indexes.
A.An index is created by 'CREATE INDEX', and deleted by 'DROP INDEX'.
B.By using an index effectively, searching and sorting performs faster.
C.There are B-tree, Hash, R-tree and GiST index types.
D.By creating an index, performance always improves.
E.Creating an unused index does not affect the performance of a database at all.
Answer:D E

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NO.27 The "sample" table consists of the following data: How many rows are returned by executing the
following SQL statement? SELECT DISTINCT ON (data) * FROM sample;
A.2 rows
B.3 rows
C.4 rows
D.5 rows
E.6 rows
Answer:B

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NO.28 The tables "t1" and "t2" are defined below. The tables "t1" and "t2" have columns "id" which are type of
INTEGER and column "name"s which are type of TEXT. t1 t2 The following SQL command was executed.
Select the number of rows in the result. SELECT * FROM t1 NATURAL FULL OUTER JOIN t2;
A.2 rows
B.3 rows
C.4 rows
D.5 rows
E.6 rows
Answer:D

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NO.29 SQL statements were executed in the following order: CREATE TABLE fmaster (id INTEGER
PRIMARY KEY, name TEXT); CREATE TABLE ftrans (id INTEGER REFERENCES fmaster (id), stat
INTEGER, date DATE); INSERT INTO fmaster VALUES (1, 'itemA'); INSERT INTO ftrans VALUES (1, 1,
CURRENT_DATE); Select two SQL statements that will generate an error when executed next.
A.INSERT INTO ftrans VALUES (1, 1, CURRENT_DATE);
B.INSERT INTO ftrans VALUES (2, 1, '2007-07-07');
C.UPDATE fmaster SET name = 'itemAX' WHERE id = 1;
D.UPDATE fmaster SET id = 100 WHERE id = 1;
E.UPDATE ftrans SET id = 200 WHERE id = 1;
Answer:A C

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NO.30 Table "t1" is defined below. Table "t1" has a column "id" of type INTEGER, and a column "name" of
type TEXT. t1: The following SQL is executed while client "A" is connected. BEGIN; SELECT * FROM t1
WHERE id = 2 FOR UPDATE; SELECT * FROM t1 WHERE id = 1 FOR UPDATE; -- (*) While the second
'SELECT' statement, shown with (*), is being executed, a separate client "B" connects and executes the
following SQL. Select the correct statement about the execution results. UPDATE t1 SET name = 'turtle'
WHERE id = 2; Note: the default transaction isolation level is set to "read committed".
A.The update process for client "B" is blocked until the current connection for client "A" is finished.
B.The update process for client "B" is blocked until the current transaction for client "A" is finished.
C.The 'UPDATE' process for client "B" proceeds regardless of the condition of client "A".
D.The process of client "B" immediately generates an error.
E.The processes for both clients are blocked, and an error stating that a deadlock has been detected is
generated.
Answer:B

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Total Q&A: 104 Questions and Answers
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NO.1 Which two files are generated by the BlackBerry Desktop Manager during synchronization with
advanced logging enabled? (Choose two.)
A. Dmtrace.log
B. Jvm.log
C. Tiff.log
D. Pttrace.log
E. Sync.log
Answer: C,D

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NO.2 Which two of the following media card settings on the BlackBerry device need to be turned on to copy
files between Windows Explorer and the media card? (Choose two.)
A. Media Card Support
B. USB Flash Drive Bypass Mode
C. Mass Storage Mode Support
D. USB Dongle Support
E. Auto Enable Mass Storage Mode When Connected
Answer: A,C

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NO.3 A BlackBerry device user does not possess an organizer application like Microsoft Outlook. Which
translator will work for them to obtain a copy of their contacts and calendar on the computer with
BlackBerry Desktop Manager? (Choose one.)
A. Plain Text
B. ASCII text
C. CSV
D. Notepad
E. Wordpad
Answer: B

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NO.4 By default, which three of the following options will delete all the user data on a BlackBerry device?
(Choose three.)
A. Enter incorrect password 10 times
B. Use the Wipe command in BlackBerry Device Manager
C. Choose Wipe Handheld from general options in security settings
D. Uninstall any application from the Application Permissions menu
E. Use the application loader tool to install new BlackBerry device software
Answer: A,C,E

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NO.5 Which three of the following steps occur during the wireless enterprise activation process? (Choose
three.)
A. Service books are sent to the BlackBerry device from the BlackBerry Enterprise Server
B. The BlackBerry device reboots after it has finished synchronizing all organizer data (PIM) items
C. An encryption key is negotiated between the BlackBerry Enterprise Server and BlackBerry device
D. The BlackBerry Enterprise Server populates the PIN number of the BlackBerry device in the
BlackBerry Administration Service
E. The BlackBerry device must be connected to the user computer to complete the last stage of the
wireless enterprise activation process
Answer: A,C,D

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NO.6 A BlackBerry device user notices email messages are being randomly deleted from the BlackBerry
device only days after receiving them. The user is not active on a BlackBerry Enterprise Server and does
not use BlackBerry Desktop Manager to synchronize with the messaging client. What are two possible
reasons the user email messages are being deleted? (Choose two.)
A. The email messages database is corrupt
B. The BlackBerry device user does not have sufficient network coverage
C. The BlackBerry device is in a low memory state
D. The hosted mailbox has reached its storage limit
E. The email messages are being automatically filed and hidden
Answer: A,C

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NO.7 A BlackBerry device user is trying to synchronize personal data and is receiving the following error: No
applications configured for synchronization What might cause this error? (Choose one.)
A. The user MAPI profile is corrupt
B. Other synchronization software on the user computer has caused a conflict
C. The Synchronize application has not been installed in BlackBerry Desktop Manager
D. The user has not run through the configuration steps for the Synchronize application
E. Duplicate items in the user registry have caused a conflict
Answer: D

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NO.8 A BlackBerry device user activates with an incorrect password. What error message will be displayed
on the BlackBerry device? (Choose one.)
A. Incorrect password. Please try again.
B. An error has occurred. Please contact your system administrator.
C. Invalid email address or password.
D. Error.
E. Invalid login credentials.
Answer: B

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NO.9 What happens after the BlackBerry device user has entered the enterprise activation information and
selects Activate on the BlackBerry device? (Choose one.)
A. The BlackBerry Dispatcher Service contacts the BlackBerry device over the wireless network and
negotiates an encryption key
B. The BlackBerry device submits an ETP.DAT email message directly to the BlackBerry
Enterprise Server
C. The BlackBerry device submits the enterprise activation data to the wireless network
D. The system administrator of the BlackBerry Enterprise Server will receive a request to activate, which
can either be accepted or denied
E. The BlackBerry device service books are verified by the BlackBerry Enterprise Server
Answer: C

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NO.10 Which two of the following processes can determine the current build version of BlackBerry Desktop
Manager that is installed? (Choose two.)
A. Right click the BlackBerry Desktop Manager icon on the desktop and review properties
B. Open BlackBerry Desktop Manager > Help > About Desktop Manager
C. Launch the BlackBerry Desktop Manager application and look at the title bar at the top of the
application
D. Open Control panel > Add / remove programs > Select Desktop Manager and choose lick here for
support info in Windows
E. Look on the BlackBerry Desktop Manager CD
Answer: B,D

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NO.11 A user wants to connect a BlackBerry device to BlackBerry Desktop Manager using Bluetooth to
synchronize. Which of the following are requirements? (Choose one.)
A. The computer must be running the Bluetooth software from the manufacturer of the Bluetooth adapter
B. The BlackBerry Bluetooth to USB driver must be installed on the computer
C. The BlackBerry device must have the Wireless Bypass service enabled
D. The BlackBerry device must have the Bluetooth Sync service enabled
E. The computer and the BlackBerry Device must have line of sight of each other
Answer: C

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NO.12 .When performing a backup of the BlackBerry device using the backup and restore tool in BlackBerry
Desktop Manager, what is the file extension of the backup file that is created? (Choose one.)
A. .bak
B. .sav
C. .ipd
D. .fil
E. .tmp
Answer: C

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NO.13 What is taking place at the Verifying Encryption stage of the wireless enterprise activation process?
(Choose one.)
A. The BlackBerry device and BlackBerry Enterprise Server are negotiating a master encryption key
B. All personal information on the BlackBerry device is being compressed, encrypted and sent over the
wireless network to the BlackBerry
Enterprise Server
C. All settings on the BlackBerry device are being verified by the BlackBerry Enterprise Server for security
considerations
D. The BlackBerry Enterprise Server is sending service book information to the BlackBerry device
E. The BlackBerry device is scanning the BlackBerry Enterprise Server settings for security
considerations
Answer: E

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NO.14 Since upgrading the BlackBerry Device Software, a BlackBerry device user is reporting that custom
audio notifications are no longer configured. Which two of the following options may resolve the issue?
(Choose two.)
A. Synchronize using BlackBerry Desktop Manager to import any pre-existing custom audio profiles
B. Create a new Audio Profile in BlackBerry Desktop Manager Media Manager and import it with the
application loader tool
C. Manually recreate the lost notifications in the Profiles application of the BlackBerry device
D. If a backup file was created in BlackBerry Desktop Manager, restoring the Options database will
restore custom profiles
E. Download new ring tone content from the service provider and install using the BlackBerry Browser
Answer: C,D

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NO.15 A BlackBerry device user filtered message count in the BlackBerry Administration Service is increasing
and no email messages are being forwarded to the BlackBerry device. Which of the following may be the
cause of this? (Choose one.)
A. The user does not have sufficient wireless coverage
B. The BlackBerry device setting for f no filters apply, send email to handheld is set to No The
BlackBerry device setting for if no filters apply, send email to handheld is set to No
C. The user has not been provisioned for Enterprise services
D. The user mail client rules/policies are interfering with message delivery Theuser mail client
rules/policies are interfering with message delivery
E. The service books on the BlackBerry device are corrupt
Answer: B

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NO.16 Which of the following will resolve a VM 517 error (Choose one.)Which of the following will resolve a
VM 517 error (Choose one.)
A. Removing and re-inserting the BlackBerry device battery
B. Performing a security wipe
C. Setting appropriate content store permissions
D. Reinstalling the BlackBerry Device Software using the application loader tool
E. Removing and re-seating the BlackBerry device SIM Card Removing and re-seating the BlackBerry
device SIM Card
Answer: D

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NO.17 Which three of the following steps can be taken to secure a BlackBerry device remotely if it has been
activated on a BlackBerry Enterprise Server? (Choose three.).
A. Reset the password and lock the BlackBerry device
B. Apply a more restrictive IT policy
C. Send a 911 notification to the service provider with the BlackBerry device PIN from the
BlackBerry Enterprise Server
D. Push disabled service books to the BlackBerry device
E. Perform a remote security wipe and disable the BlackBerry device
Answer: A,B,E

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NO.18 Which of the following components must be selected during a custom install of BlackBerry Desktop
Software for S/MIME and Wi-Fi support? (Choose one.)
A. S/MIME Support Package
B. BlackBerry device software
C. BlackBerry Security support package
D. Certificate Synchronization
E. BlackBerry advanced networking support
Answer: D

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NO.19 If the BlackBerry device is displaying a lower case edge connection status, which two of the following
actions can a BlackBerry device user perform on the BlackBerry device? (Choose two.)
A. Browse the Internet
B. Send or receive email messages
C. Send or receive SMS messages
D. Send or receive PIN messages
E. Make or receive phone calls
Answer: C,E

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NO.20 Which two of the following are types of searches that can be performed in the BTSC? (Choose two.)
A. Targeted
B. Software assisted
C. Boolean
D. Natural Language
E. Choice Focused
Answer: C,D

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Exam Code: 005-002
Exam Name: MYSQL (Certified MySQL 5.0 DBA Part I)
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Total Q&A: 140 Questions and Answers
Last Update: 2013-10-31

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NO.1 Consider the following query:
DELETE FROM INFORMATION_SCHEMA.TABLES
WHERE table_schema = 'world'
AND table_name = 'Country'
What would be the result of executing this query?
A. An error would be issued
B. A warning would be issued
C. The row would be deleted from the INFORMATION_SCHEMA.TABLES table, and the table Country
would be dropped from the world database
D. The row would be deleted from the INFORMATION_SCHEMA, but the table Country in the world
database would be unaffected.
Answer: A

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NO.2 mysqldump can be instructed to include commands to drop and recreate tables before trying to create
or load data.
A. True
B. False
Answer: A

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NO.3 Suppose you have a column in which most records are going to be between 30 and 32 characters.
Which of the following column types would be most efficient?
A. VARCHAR
B. CHAR
C. TEXT
D. Either VARCHAR or CHAR
Answer: B

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NO.4 Which of the following best describes the scope of explicitly and implicitly set locks?
A. Explicitly set locks may span several commands.
B. Implicitly set locks may span several commands.
C. Implicitly set locks will span only one statement or transaction.
D. Explicitly set locks will span only one statement or transaction.
Answer: ABC

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NO.5 Which mysqld command line option disables incoming TCP/IP connections?
A. --shared-memory
B. --memlock
C. --no-networking
D. --skip-networking
Answer: D

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NO.6 MySQL is a multi-threaded database server. Every connection to the database server is handled by
it's own thread.
A. True
B. False
Answer: A

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NO.7 Which of the following correctly defines dirty reads, non-repeatable reads and phantom row?
A. A dirty read is a read by one transaction of uncommitted changes made by another transaction.
B. A dirty read is a read by one transaction of its uncommitted changes.
C. A non-repeatable read occurs when a transaction performs the same retreival twice but gets a different
result each time.
D. A non-repeatable read is a row that appears where it was not visible before.
E. A phantom is a row that appears where it was not visible before.
F. A phantom is a read by one transaction of uncommitted changes made by another transaction.
Answer: ACE

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NO.8 Which of the following are requirements for MyISAM binary portability?
A. Both machines must use the same operating system.
B. Database and table names must use lowercase format.
C. Both machines must use IEEE floating-point format or contain no floating-point columns.
D. Both machines must use two's-complement integer arithmetic.
Answer: CD

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NO.9 Suppose you have a server that has been started with the --myisam-recover option. When does the
server perform the check on the MyISAM tables?
A. Each time the server is started.
B. Each time it encounters an error.
C. Each time it opens the MyISAM table files.
D. Each time the CHECK TABLE command is issued.
Answer: C

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NO.10 In a standard MySQL installation which of following files are stored below the data directory?
A. Format files for all the tables
B. Data and index files for MyISAM tables
C. InnoDB tablespace files
D. General server logs
E. MySQL upgrade script files
Answer: ABCD

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NO.11 Which of the following statements are true regarding table locks?
A. They can only be released by the client holding them.
B. They can be released by other connections than the client holding them.
C. They are implicitly released when the connection is closed.
D. They are not released when the connection is closed
Answer: AC

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NO.12 Which of the following are true for how BTREE and HASH index types should be used for MEMORY
tables?
A. HASH index types are only for use with equality comparisions such as those using the = and <=>
operators.
B. BTREE index types are preferable for use with comparisons that do not just use equality operators
such as = and <=>
C. BTREE index types are only for use with equality comparisons such as those using the = and <=>
operators.
D. HASH index types are preferable for use with comparisons that do not just use equality operators such
as = and <=>
Answer: AB

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NO.13 Assume you compile MySQL from source and invoke configure with the following options.
--with-charset=latin1 --with-extra-charsets=utf8,ucs2
Compared to a standard binary installation that contains many more character sets, which of the following
statements is/are true?
A. The compiled version will use less disk space, because only a few character sets will be installed on
disk.
B. The compiled version will use less memory, because only a few character sets will be loaded by the
server.
C. The compiled version will use less file handles, because only a few files need to be opened when the
server is started.
Answer: AB

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NO.14 What are some properties of using LOCK TABLE?
A. Less work is required by the server to acquire and release locks.
B. It can only be used with the MyISAM storage engine.
C. Using LOCK TABLE sometimes decreases the amount disk reads and writes needed for a group of
statements.
D. All tables must be locked in a single statement.
E. It creates more disk activity.
Answer: ACD

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NO.15 Which of the following APIs/connectors are included in a MySQL distribution?
A. Connector/J
B. Connector/ODBC
C. C API
D. Connector/NET
E. Connector/MJX
Answer: C

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NO.16 Which of the following statements are true?
A. InnoDB supports Foreign Keys.
B. MyISAM supports Foreign Keys.
C. InnoDB supports cascaded DELETE statements.
D. MyISAM supports cascaded DELETE statements.
E. InnoDB supports cascaded UPDATE statements.
F. MyISAM supports cascaded UPDATE statements.
Answer: ACE

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NO.17 Another user has issued the statement LOCK TABLE pets FOR WRITE
You can...
A. Update table pets
B. SELECT from table pets
C. Update and SELECT from table pets
D. None of the above
Answer: D

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NO.18 Which of the following are true regarding the table cache?
A. It is used to cache row data in open tables
B. It holds file descriptors for open tables
C. The size of the table cache may be set per-session
D. Each connection has its own table cache. They are of equal size, set globally.
E. There is one table cache, shared among all sessions.
F. Increasing the size of the variable table_cache allows mysqld to keep more tables open simultaneously
Answer: BEF

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NO.19 Which of the following statements are true regarding the InnoDB storage engine?
A. It uses multiversioning to isolate transactions.
B. It is not possible for deadlocks to occur.
C. It does not isolate transactions.
D. It is possible for deadlocks to occur.
Answer: AD

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NO.20 What are some advantages of using the SHOW command rather than using the
INFORMATION_SCHEMA?
A. It is available for releases older than MySQL 5.0.
B. It returns results quicker than using the INFORMATION_SCHEMA.
C. Using SHOW can provide more concise information.
D. SHOW is a feature of standard SQL, and INFORMATION_SCHEMA is a MySQL specific command.
Answer: AC

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NO.21 Which of the following best describes why table locking is often not desirable compared to page or row
locking?
A. Table locks can have deadlocks.
B. Table locks create concurrency issues.
C. Table locks prevent other clients from making any changes to the table until released.
D. Table locks can cause data corruption issues if more than one client tries to make changes while
locked.
Answer: BC

MYSQL   005-002   005-002

NO.22 Which of the following are some benefits of using MySQL built binaries over binaries built by yourself?
A. They are highly optimized.
B. They are cross-platform.
C. Many are built using commercial compilers that produce a better quality build than with freely available
compilers.
D. They will work with tools such as MySQL Administrator and MySQL Query Browser.
E. They may include libraries not available in the standard operating system library.
Answer: ACE

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NO.23 Which of the following are some general capabilites of the mysql client program?
A. Create and Drop databases
B. Ping the server
C. Create, Drop, and modify tables and indexes.
D. Shutdown the server.
E. Create users.
F. Display replication server status.
Answer: ACEF

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NO.24 Will the following SELECT query list all of the tables in the INFORMATION_SCHEMA database? If not,
why?
SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'INFORMATION_SCHEMA'
ORDER BY TABLE_NAME
A. Yes.
B. No; the INFORMATION_SCHEMA database does not contain information on itself.
C. No; the WHERE clause is incorrect. The correct field name is TABLE_SCHEMATA.
D. No; there is no table in the INFORMATION_SCHEMA database called TABLES.
Answer: A

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NO.25 The ANALYZE TABLE command should be used...
A. When you need to find out why a query is taking a long time to execute.
B. To improve performance by updating index distribution statistics.
C. After large amounts of table data have changed.
D. To check a tables structure to see if it may have been damaged and needs repair.
Answer: BC

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NO.26 Which of the following actions are performed during an RPM installation of the MySQL server
package?
A. Setup a mysql user
B. Setup a mysql group
C. Initialize the data directory
D. Setup passwords for all default accounts.
Answer: ABC

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NO.27 Which of the following are some general properties of the mysqlimport client program?
A. It loads data files into tables.
B. It can load files only on the server host.
C. It provides a command-line interface to the LOAD DATA INFILE.
D. It can load files both on the client and server host.
E. It bypasses the server and writes directly to the corresponding data files.
Answer: ACD

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NO.28 Index analysis and optimization using ANALYZE and OPTIMIZE statements should...
A. generally never be run manually
B. be run once the table reaches 100,000 rows or above
C. be run when more than 5% of the rows are changed by a single statement
D. be run when EXPLAIN SELECT shows that an inordinate amount of rows is expected to be read during
query execution
E. be run when you suspect that a table is heavily fragmented
Answer: DE

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NO.29 Which of the following steps should be taken to restore an InnoDB table to a consistent state without
having to shutdown the server?
A. Run the REPAIR TABLE command.
B. Dump the table with mysqldump, drop the table then re-create from the dump file.
C. Run the CHECK TABLE command.
D. Dump the table with mysqlhotcopy, drop the table then re-create with the backup file.
Answer: B

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NO.30 Which of the following statements is true for mysqldump?
A. It can dump data only on remote servers.
B. It can dump data only on the local server.
C. It can dump data on both local and remote servers.
Answer: C

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Exam Code: 1Z0-874
Exam Name: MYSQL (MySQL 5.0 Database Administrator Certified Professional Exam, Part II)
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Total Q&A: 140 Questions and Answers
Last Update: 2013-10-31

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NO.1 Privileges for using stored routines can be specified at the following levels:
A. Server-wide
B. Per database
C. Per routine
D. The ability to use stored procedures is not governed by the privilege system.
Answer: A,B,C

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NO.2 Which of the following best describes why InnoDB tables should always have primary keys and
why they should be short?
A. Because InnoDB uses primary keys to locate tables, and shorter keys make quicker lookups.
B. Because InnoDB uses primary keys to locate table rows, and shorter keys make quicker lookups.
C. Because InnoDB stores pointers in a log to all the primary keys and shorter keys make this log smaller.
Answer: B

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NO.3 For which of the following objects can privileges be specified?
A. Host
B. Global
C. Database
D. Table
E. Column
F. Row
Answer: C

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NO.4 Assuming that the account 'joe'@'%' does not already exist on the server, executing the statement
mysql> CREATE USER 'joe'@'%' IDENTIFIED BY 'sakila'
will have the following consequences:
A. The account 'joe'@'%' is created on the server. However, clients cannot connect using this account
until further privileges have been assigned to the account.
B. The account 'joe'@'%' is created on the server. Clients may connect to the server using this account,
but will not be able to access any databases, tables or stored routines
C. The account 'joe'@'%' is created on the server. Clients may connect to the server using this account
and execute stored routines, but will not be able to access any databases or tables
D. Nothing; there is no such command as CREATE USER
Answer: B

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NO.5 Consider the following:
mysql> EXPLAIN SELECT Name FROM Country WHERE Code = 'CAN'\G
*************************** 1. row ***************************
id: 1
select_type: SIMPLE
table: Country
type: const
possible_keys: PRIMARY
key: PRIMARY
key_len: 3
ref: const
rows: 1
Extra:
Which of the following best describes the meaning of the value of the type column?
A. The table has exactly one row.
B. Several rows may be read from the table.
C. Only one row of all its rows need to be read.
Answer: C

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NO.6 The stored function year_to_date is created by the 'root'@'localhost' account as follows:
CREATE FUNCTION year_to_date ()
RETURNS DECIMAL(10,2)
SQL SECURITY DEFINER
BEGIN ...
END;
Within the routine body, a number of calculations are made on data in the financials table and the
calculated value is returned. The only account which can access the financials table is 'root'@'localhost'.
If a client connects with the account 'joe'@'localhost' and calls the year_to_date function, what will
happen?
A. The function will always execute as if it was 'root'@'localhost' that invoked it since SQL
SECURITY
DEFINER has been specified.
B. The function will not execute, as 'joe'@'localhost' does not have access to the financials table
C. The function will not execute as SQL SECURITY DEFINER has been specified. It would execute if
instead SQL SECURITY INVOKER had been specified
D. If the account 'joe'@'localhost' has the EXECUTE privilege on year_to_date, the function will complete
successfully
Answer: D

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NO.7 How can the SHOW PROCESSLIST command be helpful when optimizing queries?
A. It shows if a query is using an index or not.
B. It shows how the server processes a query.
C. If checked periodically, it can reveal queries that cause other queries to hang.
D. It shows the percentage of processing power that each query is using on a server.
Answer: C

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NO.8 How can stored routines be used to check for constraints or legality of incoming data?
A. They can make use of the VALIDATE DEFINER setting.
B. They can not be used to check for constraints or legality of data.
C. They can check and only perform an action if the incoming values match a specified value.
Answer: C

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NO.9 When working with stored routines, which of the following are true in regards to the effect on the
amount of data exchanged between client and server?
A. They may increase the amount of data exchanged.
B. They can help reduce the amount of data exchanged.
C. They have no effect on the amount of data exchanged.
Answer: B

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NO.10 What are reasons to prefer using GRANT and REVOKE statements over editing the privilege tables
directly?
A. Using GRANT and REVOKE allows the server to figure out the right tables and do all the appropriate
work
B. All grant tables in memory are immediately updated on GRANT and REVOKE
C. Making changes directly to the grant tables, one must remember to execute flush privileges to make
the changes take effect
D. GRANT and REVOKE statements allow you to do more fine-grained tuning of user privileges than
does editing the grant tables directly.
E. None of the above
Answer: B

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NO.11 Which of the following statements are required to create a key cache of 4 MB, assign the MyISAM table
world. City to it and preload the index.?
A. mysql> SET GLOBAL city_cache.key_buffer_size = 4194304;mysql> CACHE INDEX world.City IN
city_cache;mysql> LOAD INDEX INTO CACHE world.City;
B. mysql> ALTER TABLE world.city KEY_CACHE = 4194304;
C. mysql> CREATE CACHE FOR world.City SIZE = 4194304;
D. It is not possible to create a key cache for a specific MyISAM table, only the global key cache can be
used.
Answer: A

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NO.12 Which of the following statements about the slow query log is true?
A. The slow query log will always contain just slow queries.
B. The slow query log may not always contain just slow queries.
C. The slow query log always logs more than just slow queries.
Answer: B

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NO.13 With replication, what on the master is used to send commands to the slave?
A. The relay log.
B. The binary log.
C. The SQL Thread.
Answer: B

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NO.14 Consider the following query:
GRANT ALL ON world.* TO 'web'@'hostname'
What privileges would this give this user?
A. All privileges including GRANT.
B. All privileges except GRANT.
C. SELECT, INSERT, UPDATE and DELETE
D. ALL can not be used when granting privileges.
Answer: B

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NO.15 Which of the following statements are true of how access control is based?
A. It is based off of an access control table in the mysql database.
B. It is based off of grant tables in the mysql database.
C. It is based off of an access control list stored in the data directory.
D. It is based off of an access control list stored inside the .frm files of each table.
Answer: B

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NO.16 You have been granted SELECT, INSERT and DELETE privileges on the table city in the world
database.
You log in, and exercise all your privileges without any problems.
While you are still connected and doing work, the administrator removes your DELETE privileges and
informs you by mail that you can no longer delete from table city.
Being skeptical, you decided to test your privileges and realize that you still have them all. What is are the
most likely causes of this?
A. The administrator forgot to revoke your UPDATE privilege
B. The administrator forgot to revoke your SELECT privilege
C. The administrator removed the DELETE privilege by performing an UPDATE directly on the
mysql.table_priv table
D. The administrator did not execute FLUSH PRIVILEGES
Answer: D

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NO.17 Which of the following best describes how the relay log works?
A. It records the times when the slave connects to the master.
B. When a slave receives a change from the master, it is recorded in the relay log first and
processed later.
C. When a slave receives a change from the master, it is processed first and then recorded in the relay
log.
Answer: B

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NO.18 Given the following MyISAM table structure:
mysql> desc city;
+-------------+----------+------+-----+---------+----------------
+
| Field | Type | Null | Key | Default | Extra
|
+-------------+----------+------+-----+---------+----------------
+
| ID | int(11) | | PRI | NULL | auto_increment
|
| Name | char(35) | | | |
|
| CountryCode | char(3) | | | |
|
| District | char(20) | | | | |
| Population | int(11) | | MUL | 0 | |
+-------------+----------+------+-----+---------+----------------+
and the following SQL statement:
SELECT Population
FROM city
WHERE Population = 10000
ORDER BY Population
LIMIT 5;
Which of the following statements best describes how MySQL optimizer executes the query?
A. The optimizer uses the primary key column ID to read the index values, then uses the index on
Population to filter the results. The optimizer will always choose to use a unique index first, then use a
secondary index if available.
B. The optimizer uses the index on the Population column to search and filter the WHERE clause.
A temporary table is used to perform a filesort on the results, and then only 5 records are returned to the
client.
C. The optimizer uses the index on the Population column to search, filter and sort the Population column,
then returns 5 records to the client. The optimizer does not need to read the data rows, and can return
values from the index only, because the index contains just integer values that form a leftmost prefix for
the key.
D. The optimizer uses the index on the Population column to search, filter and sort the Population column,
and returns 5 records to the client. The optimizer does not need to read the data rows, and can return
values from the index only because only those columns where specified in the
SELECT statement.
E. The optimizer will never read data from disk, since MySQL caches both data and index in the key
buffer.
Answer: D

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NO.19 Consider the following GRANT statement:
GRANT USAGE ON *.* TO 'kofi'@'localhost' IDENTIFIED BY 'password'
What is the implications of executing that statement?
A. Kofi can access all database objects.
B. Kofi can access all his tables.
C. Kofi can display server system and status variables.
D. Kofi can grant privileges to others.
E. Kofi can access all database objects belonging to localhost.
Answer: C

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NO.20 Which of the following best describes what the master.info file contains and how it is used?
A. It contains the values from the CHANGE MASTER statement.
B. When the slave restarts it looks for which master to use from this file.
C. It contains information about the master server, its slaves and its configuration.
D. It is used by an administrator to determine what slaves connect to the master, and other information
about the master server.
Answer: D

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Exam Code: C_BODI_20
Exam Name: SAP (SAP Certified Application Associate - SAP BusinessObjects Data Integrator XI R2)
One year free update, No help, Full refund!
Total Q&A: 127 Questions and Answers
Last Update: 2013-10-31

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NO.1 Which three operations are available between a Local and Central Object Library?
(Choose three)
A. Add
B. Check In
C. Export
D. Get
E. Import
Answer: A,B,D

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NO.2 How do you create multiple instances of the same Data Flow?
A. Right-click+Replicate on the Data Flow in the Local Object Library
B. Right-click_Copy/Paste Data Flow from the Job wrorkspace
C. Right-click_Copy/Paste Data Flow in the Local Object Library
D. Right-click+Replicate Data Flow from the Job workspace
Answer: A

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NO.3 What is the correct sequence of transforms to populate a Type || Slowly Changing Dimension (SCD ||)?
A. Key_Generation, Table_Comparison.History_Preserving
B. History_Preserving, Table_Comparison.Key_Generation
C. Table_Comparison.History_Preserving, Key_Generation
D. Table_Comparison.Key_Generation, History_Preserving
Answer: C

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NO.4 How do you create a global variable?
A. Select Global Variables in the Job properties
B. Select Global Variables in the Work Flow properties
C. Select Tools |Variables|Global Variables in the Job workspace
D. Select Tools | Options| Project | Variables
Answer: C

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NO.5 Which lookup caching method reduces the number of round trips to the translate table?
A. Demand_Load_Cache
B. No_Cache
C. Pre_Load _Cache D. Smart_Cache
Answer: C

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NO.6 Which two functions can you use in a Query? (Choose two)
A. Count
B. Exec
C. Lookup_Ext
D. Sleep
Answer: A,C

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NO.7 Which two changes to your Source Table requires you to re-import the metadata?
(Choose two)
A. Index changes
B. New records added
C. Table structure changes
D. Truncated table data
Answer: A,C

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NO.8 You are developing a data warehouse as part of a large development team (ten plus developers) Way
should you recommend a multi-user configuration? (Choose two)
A. Attach documentation based on object history
B. Ensure only one developer is working on a specific set of objects
C. Store table column and relationship profile data including history
D. Track the version history history of objects(audit trrail)
Answer: B,D

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NO.9 Which three operations can Data Integrator push down to the underlying database?
(Choose three)
A. Aggregation
B. Distinct Row
C. Ordering
D. Union
Answer: A,B,C

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NO.10 Your sales order fact table load contains a reference to a customer _id not found in the customer
dimension table. How can you replace the customer_id with a default value and preserve the original
record using the Validation transform?
A. Select Exists in table
and Action On Failure I Send to Both , select For Pass, substitute with .
B. Select Exists in table
and Action On Failure I Send to Fail , select For Pass, substitute with .
C. Select In
option and Action On Failure I Send to Both , select For pass, substitute with .
D. Select In
option and Action On Failure I Send to Fail , select For pass, substitute with .
Answer: A

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NO.11 Which SQL statement displays when the Trace SQL Readers
option is set to Yes ?
A. SQL from the source tables
B. SQL to the target tables
C. SQL from the Lookup_ext function
D. SQL from the Table_Comparison transform
Answer: A

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NO.12 Where do you specify the error file to capture flat file format errors?
A. File Format Editor
B. Properties of the Data Flow
C. Server Manager Tool
D. Trace Options of the Job
Answer: A

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NO.13 Which two steps are part of the profiling configuration process? (Choose two)
A. Use the Data Quality dashboard to review high level profiler result details
B. Use the Repository Manager to create/update/delete profiler users
C. Use the Repository Manager to create the profiler repository
D. Use the Server Manager to associate the profiler repository with the job server
Answer: C,D

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NO.14 In which three objects can you include a try/catch block.? (Choose three)
A. Data Flow
B. Job
C. Script
D. Work Flow
Answer: B,C,D

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NO.15 You have a source table that contains fifty columns. You need to place business rules on thirty of the
columns to check the format of the source data and filter the valid and invalid records. You also want to
analyze the column values that fail. What is the recommended method you should use?
A. Use a Case transform to create two conditions that filter the invalid records
B. Use a Map_Operation transform to map valid and invalid data rules
C. Use a Validation transform and enable validation rules on the required columns
D. Use two Query transforms with different WHERE clauses to filter the invalid records
Answer: C

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NO.16 Which three types of group level permissions are available in a Secured Central Object Library?
(Choose three)
A. Full
B. Hidden
C. None
D. Read
E. Write
Answer: A,C,D

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NO.17 When you read an XML schema into the Local Object Library, which three types of XM metadata are
imported? (Choose three)
A. Attributes
B. Data Types
C. Elements
D. Styles
Answer: A,B,C

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NO.18 Which tool must you use to manage and configure server groups?
A. Metadata Manager
B. Repository Manager
C. Server Manager
D. Web Administrator
Answer: D

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NO.19 Which three methods can you use to create a local variable? (Choose three)
A. Select the Variables tab in the Smart Editor of a custom function
B. Select Tools | Variables | Local Variables in the Job workspace
C. Select Tools | Variables | Local Variables in the Work Flow workspace
D. Select Tools | Variables | Local Variables in the Data Flow workspace
Answer: A,B,C

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NO.20 How do you associate a repository with the Management Console?
A. Open the Server Manager and select Edit Job Server Config | Add Repository
B. Open the Server Manager and select Edit Server Group Config| Add Repository
C. Open Web Administrator and select Management |Repositories | Add
D. Open the Web Administrator and select Server Groups| Server Group Config| Add Repository
Answer: C

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