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Oracle 1Z0-874 Exam

Title

MySQL 5 Database Administrator Certified Professional Exam, Part II

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1. 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

2. The user 'joe' connecting from the host example.com has full access to all databases on theserver: 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

3. 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 aremade on data in the financials table and the calculated value is returned. The only account whichcan 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

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Answer: D

4. 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

5. 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

6. Granting access to the mysql database... A. Should never be done for any users. B. Should always be done for all users. C. Should only be done on administrator accounts. D. Should be done for anyone needing to create views Answer: C

7. How can stored routines be used to check for constraints or legality

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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

8. 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

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