显示标签为“010-002”的博文。显示所有博文
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2014年2月24日星期一

評判が高いMYSQL 010-002 006-002 005-002認証試験の参考書

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試験番号:010-002問題集
試験科目:MYSQL 「Certified MySQL Associate (English)」
問題と解答:全50問

試験番号:006-002問題集
試験科目:MYSQL 「Certified MySQL 5.0 DBA Part II」
問題と解答:全140問

試験番号:005-002問題集
試験科目:MYSQL 「Certified MySQL 5.0 DBA Part I」
問題と解答:全140問

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NO.1 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 not execute, as 'joe'@'localhost' does not have access to the financials table
B. The function will not execute as SQL SECURITY DEFINER has been specified. It would execute if
instead SQL SECURITY INVOKER had been specified
C. The function will always execute as if it was 'root'@'localhost' that invoked it since SQL SECURITY
DEFINER has been specified.
D. If the account 'joe'@'localhost' has the EXECUTE privilege on year_to_date, the function will complete
successfully
Answer: D

MYSQL   006-002認証試験   006-002認定証   006-002

NO.2 Which of the following statements are true regarding the structure of grant tables in new distributions?
A. They change with every upgrade.
B. They are often changed.
C. They remain the same for backwards compatibility.
Answer: B

MYSQL参考書   006-002認証試験   006-002練習問題   006-002   006-002過去問

NO.3 When performing diagnostic functions on a server should excessive start and stop messages be looked
for in the error log, and why?
A. No, start and stop messages are of no relevance to diagnostics.
B. Yes, because there is a bug in mysqld that can cause multiple start and stop messages to be inserted
in the log.
C. No, because they will not provide any information as to what is wrong.
D. Yes, because they can indicate that there is something causing the server to restart unexpectedly and
not due to normal startup and shutdown.
Answer: D

MYSQL認定資格   006-002   006-002   006-002   006-002認定証

NO.4 Which of the following statements are true regarding wildcards in the host name of an account
specification?
A. The '%' character is used to match any number of characters or numbers
B. The '*' character is used to match any number of characters or numbers
C. The '_' character is used to match any number of characters or numbers
D. The '.' character is used to match any single character or number
E. Wildcards may be used to match any number of characters at the beginning of the host name or IP
address only
F. Wildcards may be used to match any number of characters at the end of the host name or IP address
only
G. Wildcards may be used to match any number of characters anywhere in the host name or IP address
Answer: AG

MYSQL認定試験   006-002   006-002   006-002問題集

NO.5 The user 'joe' connecting from the host example.com has full access to all databases on the server:
mysql> SHOW GRANTS FOR 'joe'@'example.com';
+----------------------------------------------------+
| Grants for joe@example.com |
+----------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'joe'@'example.com' |
+----------------------------------------------------+
1 row in set (0.00 sec)
You need to restrict the user from accessing the mysql database. Will the following statement do this?
REVOKE ALL PRIVILEGES ON mysql.* FROM 'joe'@'example.com'
A. Yes
B. No
C. The answer cannot be determined from the information provided.
Answer: B

MYSQL   006-002認定試験   006-002   006-002

NO.6 Can multi-column FULLTEXT indexes be used? If so, when?
A. No, they can not be used.
B. Yes, they should be used to search multiple columns simultaneously.
C. Yes, they can be used to search either one or all of the indexed columns.
Answer: B

MYSQL問題集   006-002   006-002認証試験

NO.7 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: AB

MYSQL   006-002認定証   006-002過去問

NO.8 Which of the following would be considered a good candidate table for compression?
A. A table with data that needs only few updates in the future.
B. A table with data that will not be updated in the future.
C. A large table, such as those used for data warehousing.
D. All MyISAM tables are good candidates for compression.
Answer: B

MYSQL過去問   006-002認証試験   006-002

NO.9 When working with replication, why might you want to stop the SQL thread on the slave while keeping
the I/O thread running?
A. So that no changes are made while making backups.
B. So that events for the slave do not get backlogged on the master.
C. So that remaining events can be processed while not receiving new events from the master.
Answer: AB

MYSQL問題集   006-002   006-002   006-002練習問題   006-002

NO.10 Consider the following:
mysql> EXPLAIN SELECT Name FROM Country WHERE Code = 'CAN'
*************************** 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

MYSQL   006-002認定資格   006-002

NO.11 The type of file system you chose may affect MySQL use and/or performance with regard to...
A. Table opening time.
B. Size limits of files.
C. Time to recover from a crash.
D. The number of users MySQL can handle.
E. The type of storage engines that can be used.
Answer: ABC

MYSQL認定証   006-002問題集   006-002   006-002参考書   006-002認証試験

NO.12 Which of the following best describe the effects on performance for the dynamic-row format for
MyISAM has?
A. Retrievals are more complex and slower.
B. Retrievals are less complex and are faster.
C. Rows generally take up less disk space than fixed-row format.
D. Rows generally take up more disk space than fixed-row format.
Answer: AC

MYSQL認証試験   006-002   006-002練習問題   006-002

NO.13 What type of resource limitations may be placed on a user account with the GRANT statement?
A. The number of times per hour that an account is allowed to connect to the server
B. The number of queries per hour an account is allowed to issue
C. The number of updates per hour an account is allowed to issue
D. The maximum number of simultaneous connections an account can have
E. Resource limits can only be specified globally, not per-account
F. MySQL does not have provisions for limiting resource usage
Answer: ABCD

MYSQL参考書   006-002   006-002過去問

NO.14 Which of the following best describes what MASTER_LOG_FILE and MASTER_LOG_POS provides?
A. The path of the log file.
B. The file to log replication actions to.
C. The masters binary log name used for replication.
D. The position in the masters binary log in which to start replication.
Answer: CD

MYSQL   006-002認定試験   006-002

NO.15 Is it possible to tell the MySQL server to throw an error on division-by-zero rather than converting it to
NULL and a warning?
A. No, it has to be done programmatically.
B. Yes, by updating a system variable.
C. Yes, there is a SQL mode that exists for that.
D. No, division-by-zero is always converted regardless of any setting.
Answer: C

MYSQL問題集   006-002   006-002参考書   006-002参考書

NO.16 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: ABC

MYSQL問題集   006-002   006-002

NO.17 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

MYSQL   006-002過去問   006-002認定証   006-002練習問題   006-002

NO.18 What kind of replication is supported by the MySQL server?
A. Multiple-master replication
B. Master to slave replication
C. Single file based clustering
D. MySQL doesn't support replication
Answer: B

MYSQL   006-002練習問題   006-002認定証   006-002認定証

NO.19 Does max_connections have an affect on the number of slaves that may connect to a master?
A. No, because slaves are not really clients.
B. Yes, because each slave is effectively a connected user.
C. No, because slaves do not use the same type of connection as a regular client.
D. Yes, because if the server has too many connections, it may slow the slaves down.
Answer: B

MYSQL   006-002問題集   006-002認証試験   006-002問題集   006-002過去問

NO.20 Which of the following optimizations could be made based on data collected in the slow query log?
A. Tune server parameters.
B. Change the storage engines in use.
C. Make changes to the network infrastructure.
D. Rewrite queries to perform more efficiently.
E. Normalize data or add indexes to the tables that the queries use.
Answer: ABDE

MYSQL   006-002過去問   006-002参考書

NO.21 In the following query, the Population column is indexed:
mysql> EXPLAIN SELECT Name
-> FROM Country
-> WHERE Code LIKE '%B%' AND Population > 10000
*************************** 1. row ***************************
id: 1
select_type: SIMPLE
table: Country
type: ALL
possible_keys: i_pop
key: NULL
key_len: NULL
ref: NULL
rows: 239
Extra: Using where
Which of the following best describes how to deal with the key value of the EXPLAIN output?
A. Use FORCE KEY
B. Use USE INDEX.
C. Use FORCE INDEX.
D. Use USE POSSIBLE_KEY
Answer: BC

MYSQL   006-002認定証   006-002   006-002過去問   006-002

NO.22 Consider the following EXPLAIN output.
mysql> EXPLAIN SELECT Name FROM City WHERE Population > 8000000
*************************** 1. row ***************************
id: 1
select_type: SIMPLE
table: City
type: ALL
possible_keys: NULL
key: NULL
key_len: NULL
ref: NULL
rows: 4079
Extra: Using where
Which of the following statements are true?
A. The query cannot be optimized any better.
B. No index could be used to perform the query.
C. All 4079 rows of the table need to examined.
D. The Name column should be indexed.
E. The Population column should be indexed.
Answer: BCE

MYSQL認証試験   006-002認証試験   006-002   006-002

NO.23 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

MYSQL参考書   006-002   006-002   006-002

NO.24 Assuming that the user account 'joe'@'example.com' exists, executing DROP USER
'joe'@'example.com' has the following consequences:
A. The user account will immediately be removed from the server, if no object-level privileges are in effect
for that account
B. The account will be removed from the server the next time FLUSH PRIVILEGES is executed, if no
object-level privileges are in effect for that account
C. The account and all associated privileges will immediately be removed from the server
D. The user account and all associated privileges will be removed from the server the next time FLUSH
PRIVILEGES is executed.
Answer: C

MYSQL   006-002認定資格   006-002練習問題

NO.25 Which of the following statements best describe the key buffer?
A. It is a global buffer.
B. It is set on a per-connection basis.
C. It caches index blocks for MyISAM tables only.
D. It caches index blocks for InnoDB tables only.
E. It caches index blocks for all storage engine tables.
Answer: AC

MYSQL   006-002   006-002練習問題   006-002練習問題

NO.26 Which of the following are important network factors for remote MySQL clients?
A. Latency.
B. Firewalls.
C. Throughput speed.
D. The type of routers used.
Answer: AC

MYSQL問題集   006-002認定証   006-002   006-002問題集   006-002

NO.27 Which of the following statements are true of compressed tables?
A. They can be uncompressed.
B. They can not be uncompressed.
C. They can be uncompressed but some data corruption may occur.
Answer: A

MYSQL認定試験   006-002   006-002認証試験

NO.28 In regards to security, which of the following statements are true?
A. mysqld should not be run as root or administrator.
B. mysqld should be run as root or administrator.
C. The user owning the server process should own all files and directories to which the server may write.
D. The root or admininistrator users should own all files related to the server process
Answer: AC

MYSQL認証試験   006-002過去問   006-002認定資格

NO.29 Which of the following is/are valid reasons to consider using --skip-networking?
A. Your server is not networked to other servers.
B. You do not have a need for remote clients to connect.
C. You have a need for remote clients to connect.
D. You are not going to use replication or clustering.
Answer: B

MYSQL   006-002   006-002認定試験

NO.30 For which of the following objects can privileges be specified?
A. Host
B. Global
C. Database
D. Table
E. Column
F. Row
Answer: BCDE

MYSQL   006-002参考書   006-002問題集   006-002   006-002過去問

2013年8月8日星期四

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試験番号:1Z0-871問題集

試験科目:MYSQL 「MySQL 5.0 Developer Certified Professional Exam, Part I」

問題と解答:全69問

試験番号:1Z0-870問題集

試験科目:MYSQL 「MySQL 5.0, 5.1 and 5.5 Certified Associate Exam」

問題と解答:全240問

試験番号:010-002問題集

試験科目:MYSQL 「Certified MySQL Associate (English)」

問題と解答:全50問

試験番号:006-002問題集

試験科目:MYSQL 「Certified MySQL 5.0 DBA Part II」

問題と解答:全140問

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NO.1 DRAG DROP
Drag and drop the correct constraint types to their corresponding specifications.
Answer:

NO.2 Which of the following are the types of numeric literals that can be used in arithmetic expressions?
Each correct answer represents a complete solution. Choose all that apply.
A. Numeric
B. Integer
C. Binary
D. Real
Answer: B,D

MYSQL認定試験   1Z0-870   1Z0-870認証試験

NO.3 You work as a Database Administrator for Pass4sure.com. The company uses MySQL as its database.
You have created a table named Employees in the database. You want to create a list of
employees working in the organization, but you do not want to display any duplicate row in the report.
Which of the following statements will help you to accomplish the task?
A. SELECT emp_id, emp_name FROM Employees ORDER BY emp_id;
B. SELECT emp_id, emp_name FROM Employees;
C. SELECT DISTINCT emp_id, emp_name FROM Employees;
D. SELECT emp_id, emp_name FROM Employees GROUP BY emp_id;
Answer: C

MYSQL問題集   1Z0-870認証試験   1Z0-870

NO.4 You work as a Database Administrator for Pass4sure.com. The company uses MySQL as its database.
You have created a new table named Employees, which keeps all the information of the
employees. You want to add a new row to the Employees table. Which of the following statements will you
use to accomplish the task?
A. INSERT (column1, column2, ...columnN) INTO <table_name> VALUES(value1, value2, ...v alueN);
B. INSERT INTO <table_name>(column1, column2, ...columnN) VALUES(value1 ,value2,
...va lueN);
C. INSERT <table_name>(column1, column2, ...columnN), VALUES(value1, value2, ...valueN );
D. INSERT INTO <table_name>(column1, column2,... columnN), VALUES(value1, value2, ...v alueN);
Answer: B

MYSQL   1Z0-870認定資格   1Z0-870   1Z0-870認定資格

NO.5 Which of the following are true about UPDATE statements?
Each correct answer represents a complete solution. Choose all that apply.
A. You can use the WHERE clause to have your update affects a specific set of rows.
B. You use the SET clause to update multiple columns of a table separated by commas.
C. You can use co-related sub query in UPDATE statements to update data from other tables.
D. If you don't use the WHERE clause then the UPDATE will not update any rows in the table.
Answer: A,B,C

MYSQL過去問   1Z0-870   1Z0-870   1Z0-870練習問題   1Z0-870認証試験

NO.6 Which of the following properties of concurrency control refers to the requirement that other operations
cannot access or see the data in an intermediate state during the execution of a transaction?
A. Consistency
B. Durability
C. Atomicity
D. Isolation
Answer: D

MYSQL過去問   1Z0-870   1Z0-870   1Z0-870

NO.7 Fill in the blank with the appropriate term.
A______ provides a concise and flexible means for matching strings of text,
such as particular characters, words, or patterns of characters.
A. regular expression
Answer: A

MYSQL認定証   1Z0-870   1Z0-870   1Z0-870練習問題

NO.8 You work as a Database Administrator for Pass4sure.com. The company uses the MySQL database.
You have created a new table named Employees in the database and performed update operation but
you got an error because of the last transaction. Now, you want to terminate the last transaction. Which of
the following commands can you use to accomplish the task?
Each correct answer represents a complete solution. Choose all that apply.
A. ROLLBACK
B. REMOVE
C. DELETE
D. COMMIT
Answer: A,D

MYSQL認定資格   1Z0-870   1Z0-870認定試験   1Z0-870

NO.9 Fill in the blank with the appropriate word.
The ________data type defines a date that is combined with a time of day along with fractional seconds
that is based on a 24-hour clock.
A. datetime
Answer: A

MYSQL   1Z0-870認定証   1Z0-870

NO.10 You work as a Database Administrator for Pass4sure.com. The company uses MySQL as its database.
You have created two tables named Employees and Departments in the database. Now, you want to
display data from both tables. Which of the following actions will you perform to accomplish the task.?
A. Join
B. Table Merge operator
C. HAVING
D. GROUP BY
Answer: A

MYSQL   1Z0-870認定資格   1Z0-870   1Z0-870   1Z0-870

NO.11 Fill in the blank with the appropriate word.
A ______specifies that the value of a column (or columns), upon which the index is based, must be
unique.
A. unique index
Answer: A

MYSQL練習問題   1Z0-870認定資格   1Z0-870

NO.12 You work as a Database Administrator for Pass4sure.com. The company uses MySQL as the database
platform. You have created a table named Students in the database. The structure of the table is as
follows:
Stu_ID NUMBER (3) PRIMARY KEY
Stu_Name VARCHAR2 (25) NOT NULL
Fee NUMBER (8, 2)
Class NUMBER (5);
You have executed the following statement for the table "Students":
SELECT e.Stu_Name, m.Fee
FROM Students e, Students m
WHERE e.Stu_ID = m.stu_ID;
Which of the following join types have you used in the above statement?
A. Cross join
B. Equijoin
C. Self join
D. Outer join
Answer: C

MYSQL   1Z0-870参考書   1Z0-870

NO.13 Adam works as a Database Administrator for Pass4sure.com. The company uses MySQL as its
database. Adam has created a table named Employees in the database. He wants to retrieve the
information of those employees who have at least one person reporting to them. Which of the following
queries will Adam execute to accomplish the task?
A. SELECT employee_id, last_name, job_id, department_id FROM Employees WHERE
employee_id EXISTS (SELECT manager_id WHERE manager_id is NULL);
B. SELECT employee_id, last_name, job_id, department_id FROM Employees HAVING
employee_id IN (SELECT manager_id FROM Employees WHERE manager_id is NOT NULL);
C. SELECT employee_id, last_name, job_id, department_id FROM Employees outer WHERE EXISTS
(SELECT 'x' FROM Employees WHERE manager_id = outer.employee_id);
D. SELECT employee_id, last_name, job_id, department_id FROM Employees WHERE
employee_id IN (SELECT manager_id WHERE manager_id is NOT NULL);
Answer: C

MYSQL   1Z0-870認定証   1Z0-870

NO.14 Which of the following terms is described in the statement below?
"It is procedural code that is automatically executed in response to certain events on a particular table or
view in a database."
A. Data type
B. Table
C. Datetime data type
D. Database trigger
Answer: D

MYSQL   1Z0-870   1Z0-870   1Z0-870   1Z0-870練習問題

NO.15 Which of the following will be true about a table column if you plan to create an index on that column?
Each correct answer represents a complete solution. Choose all that apply.
A. The column is often used in the WHERE clause of SQL statements.
B. The column contains very small number of NULL values.
C. The table is updated frequently.
D. The column should contain a wide range of values.
Answer: A,D

MYSQL練習問題   1Z0-870   1Z0-870練習問題   1Z0-870   1Z0-870

NO.16 You work as a Database Administrator for Pass4sure.com. The company uses MySQL as its database.
You have written two statements, which are as follows:
1. SELECT DISTINCT OBJECT_TYPE
FROM USER_OBJECTS;
2. SELECT OBJECT_TYPE
FROM ALL_OBJECTS;
Which of the following options explains the difference between the results of these two
statements? Each correct answer represents a complete solution. Choose all that apply.
A. The first statement will display distinct object types that can be accessed by the user.
B. The second statement will display all object types that a user can access.
C. The first statement will display distinct object types owned by a user.
D. The second statement will display all object types owned by a user.
Answer: B,C

MYSQL練習問題   1Z0-870練習問題   1Z0-870認定試験   1Z0-870問題集   1Z0-870問題集

NO.17 Consider the exhibit given below:
Which of the following queries will return the name of the customer who placed the highest amount of
orders and the total order amount?
A. SELECT CUSTOMER, MAX(UNITPRICE*QUANTITY) AS "TOTAL"
FROM ORDERS
GROUP BY CUSTOMER
/
B. SELECT CUSTOMER, SUM(UNITPRICE*QUANTITY) AS "TOTAL"
FROM ORDERS
WHERE SUM(UNITPRICE*QUANTITY)
=
(SELECT MAX(SUM(UNITPRICE*QUANTITY)
)
FROM ORDERS
GROUP BY CUSTOMER)
GROUP BY CUSTOMER
/
C. SELECT CUSTOMER, SUM(UNITPRICE*QUANTITY) AS "TOTAL"
FROM ORDERS
GROUP BY CUSTOMER
HAVING SUM(UNITPRICE*QUANTITY)
=
(SELECT MAX(SUM(UNITPRICE*QUANTITY)
)
FROM ORDERS
GROUP BY CUSTOMER)
/
D. SELECT CUSTOMER, SUM(UNITPRICE*QUANTITY) AS "TOTAL"
FROM ORDERS
GROUP BY CUSTOMER
HAVING SUM(UNITPRICE*QUANTITY)
=
(SELECT SUM(UNITPRICE*QUANTITY)
FROM ORDERS
GROUP BY CUSTOMER)
/
Answer: C

MYSQL練習問題   1Z0-870認定資格   1Z0-870   1Z0-870認証試験

NO.18 You work as a Database Administrator for Pass4sure.com. The company uses MySQL as its database
development platform. You have created a table named Employees in the database.
You want to display the names of the employees whose salary is more than $5000, but you do not want to
display any duplicate content. Therefore, you have written the following query:
SELECT emp_id, DISTINCT emp_name WHERE salary > 5000
FROM Employees;
Which of the following statements is true about the above query?
A. The statement will display only unique names whose salary is more than $5000.
B. The UNIQUE clause should be used in place of the DISTINCT clause.
C. The statement will give an error.
D. The statement will display those records whose salary is more than $5000.
Answer: C

MYSQL   1Z0-870問題集   1Z0-870   1Z0-870   1Z0-870

NO.19 Which of the following statements is correct for equijoin used to join two tables named Employees and
Department?
A. SELECT Dept_Name, Emp_Name
FROM Departments d1, Employees e1
ORDER BY Dept_Name, Emp_Name;
B. SELECT D.Dept_Name, E.Emp_Name
FROM Departments d1, Employees e1
HAVING Dept_Name, Emp_Name;
C. SELECT E.Emp_Name, D.Dept_Name
FROM Departments d1, Employees e1
WHERE Dept_No = Dept_No
ORDER BY Dept_Name, Emp_Name;
D. SELECT Dept_Name, Emp_Name
FROM Departments d1, Employees e1
WHERE d1.Dept_No = e1.Dept_No
ORDER BY Dept_Name, Emp_Name;
Answer: D

MYSQL認定資格   1Z0-870過去問   1Z0-870

NO.20 Adam works as a Database Administrator for Pass4sure.com. He creates a table named Students.
He wants to create a new table named Class with the help of the Students table. Which of the following
syntaxes will Adam use to accomplish the task?
A. CREATE TABLE Class
INSERT INTO SELECT * FROM Students;
B. CREATE TABLE Class
FROM SELECT * FROM Students;
C. CREATE TABLE Class
(SELECT * FROM Students);
D. CREATE TABLE Class
AS SELECT * FROM Students;
Answer: D

MYSQL   1Z0-870   1Z0-870