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oracle dba quiz

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I am presenting here the Oracle DBA quiz. I hope you like it

oracle dba quiz

This Oracle DBA online test check the understanding on various topics like RMAN, Oracle Structures,Backup & recovery , Oracle Memory structure, Background processes, Dictionary views , alert logs ,oracle tablespace ,indexes , profiles and many more

The below test is randomized Oracle DBA quiz and select 40 questions from the set of many questions,so each time you try to attempt it, you will get different questions in different order and option would also be in different order, So it will be fun practicing with this tool. You can try as many times as you want till you feel comfortable about it

Instructions for online test

1.This quiz consists of 40 questions .It is recommended to complete the test in 60 min
2. It consists both single choice and more than  one choice questions to test your knowledge
3. You can press the submit button at the end of your test and get the final score
4.You will also get the know the correct choice after you finished the test.

1. After creating a new user for your Oracle database, a user still complains he or she cannot log in because of insufficient privileges errors. Which of the following actions should you take?

Question 1 of 40

2. A DBA manages a database that is operating in NOARCHIVELOG mode. Which one of the following options should he include in his backup strategy?

Question 2 of 40

3. You are analyzing the components of the redo log mechanisms in your Oracle database. Which of the following purposes does the CKPT process serve?

Question 3 of 40

4. Information in the buffer cache is saved back to disk in each of the following situations except one. In which situation does this not occur?

Question 4 of 40

5. You are processing an update statement. At what point in SQL statement processing is the data change actually made to block buffers?

Question 5 of 40

6. A User accidentally drops a very critical table. What kind of failure just occurred?

Question 6 of 40

7. When we issue the commit statement in the session, which of the following things will not occur?

Question 7 of 40

8. You are trying to find the ALERT file on a host machine for a database (11g and below) you have never administered before. Which of the following initialization parameters is used to identify the location of the ALERT file?

Question 8 of 40

9. The location of indexes in a database and the size of those indexes is information that can be found in which of the following dictionary views?

Question 9 of 40

10. When choosing a character set and national character set, which of the following factors should not enter into consideration?

Question 10 of 40

11. You need to remove a column from the database. Which of the following choices best identifies how to do so if your objective is to quickly execute the task without necessarily freeing up space in your tablespace?

Question 11 of 40

12. You are defining storage for various segment types in the Oracle database. Which of the following is not a valid type of segment in Oracle?

Question 12 of 40

13. Which of the following clauses are available in alter user statements but not in create user statements?

Question 13 of 40

14. You issue the alter tablespace read only command against an Oracle database. Which of the following choices best describes what happens next?

Question 14 of 40

15. The best choice for decreasing size requirements for tables that need only be accessed via the primary key in oracle is which of the following?

Question 15 of 40

16. You attempt to issue the alter tablespace rename datafile command in the Oracle database. Which of the following choices indicates a step that must take place after this command is issued?

Question 16 of 40

17. You are attempting to locate your control files on an Oracle database called TEST. In which of the following files might you look for this information?

Question 17 of 40

18. You are identifying dictionary objects in the Oracle database. Which of the following is a view in the data dictionary?

Question 18 of 40

19. You are performing the steps that will create your Oracle data dictionary. The objects in the Oracle data dictionary are part of which of the following schemas?

Question 19 of 40

20. As the DBA, you are attempting to limit user's misuse of Oracle's ability to use host machine resources. Which of the following features of the Oracle database is useful for this purpose?

Question 20 of 40

21. A organization is taking online backups of the database, with the database operating in ARCHIVELOG mode. Due to a media failure they lost the SYSTEM tablespace data files. What must they do to recover the data files?

Question 21 of 40

22. Which of the following choices lists an alter user option that can be executed by the user herself or himself?

Question 22 of 40

23. The DBA issues the following statement:
CREATE USER APPLDBA
IDENTIFIED BY APPLDBA;
What profile will user APPLDBA have?

Question 23 of 40

24. Session information when dedicated servers are being used is stored where in the Oracle database?

Question 24 of 40

25. Which of the following operations do not require Oracle to store information in an undo segment as part of the transaction?

Question 25 of 40

26. You want to find out the names and locations of all control files in your database. Which two of the following performance views would you query?

Question 26 of 40

27. A disk crashes that contains the only copies of all four of your online redo log files. How would you alter your Oracle database to prevent this from causing much damage in the future?

Question 27 of 40

28. You are adding redo logs to the Oracle database. Creating a new redo log adds information to which of the following Oracle resources?

Question 28 of 40

29. During regular database operation, which background process will take smaller blocks of free space in a dictionary-managed tablespace and move things around to make bigger pieces of free space?

Question 29 of 40

30. Your Oracle EMP table contains many unique values in the FIRST_NAME column. You want to index that column to take advantage of this fact in query access. Which of the following indexes might you use?

Question 30 of 40

31. Which one of the following RMAN commands is equivalent to the SQL statement ALTER DATABASE RENAME FILE ?

Question 31 of 40

32. You issue the following statement from SQL*Plus: startup mount. Where does Oracle obtain values for starting the instance?

Question 32 of 40

33. Which one of the following statements is incorrect with respect to RMAN's CROSSCHECK command?

Question 33 of 40

34. You issue the following statement in Oracle:
CREATE UNIQUE BITMAP INDEX empl_lastname_indx_01
ON employee (lastname ASC);
What is wrong with this statement for dictionary-managed tablespaces?

Question 34 of 40

35. If you wished to make it so that every user in Oracle could have only one connection to the database at a time, which of the following choices identifies how you would do it?

Question 35 of 40

36. You have assigned 10 tables to the keep pool. How should you determine the appropriate size for your keep pool?

Question 36 of 40

37. You want to perform some maintenance and You issue the shutdown command at 9 p.m. on a Saturday. One hours later, the database is still in the process of shutting down. Which of the following options did you most likely use in order to shut down the database?

Question 37 of 40

38. You need to identify the remaining free space in a tablespace. From which of the following views would you get this information most easily?

Question 38 of 40

39. Which of the following choices identifies a constraint on performing alter tablespace resize operation if the intended size of the tablespace is larger than the tablespace’ s current size?

Question 39 of 40

40. Which of the following clauses in a create user statement restricts the number of tables a user can add to a tablespace?

Question 40 of 40


 

I hope you like this Oracle DBA online quiz and it helps in your examination preparation. Best of Luck for the Oracle certification Examination. Please do provide feedback on it. We will also be adding more quizzes and questions in future.

Happy Learning!!!!

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