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Oracle Database Quiz

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Oracle Database Quiz

This Online Oracle Database quiz test check the understanding on various topics on Oracle like Delete ,cache, Natural join ,indexes , profiles,Dictionary views,Oracle sql tuning, Oracle background processes, insert statement and many more to help you in test

The below test is randomized Oracle Quiz and select 20 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. I will keep updating the set of questions to make you feel competitive and comfortable with Oracle

Instructions for online test

1.This quiz consists of 20 questions .It is recommended to complete the test in 30 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.

This quiz is automatically created to help you get started. It will be created only once.

1. Which type of table is the best candidate to be cached?

Question 1 of 20

2. The cost- based optimizer can choose between a nested loops join and a sort merge join operation. All tables are analyzed and the OPTIMIZER_ MODE is set to FIRST_ ROWS. Which execution plan will be the result?

Question 2 of 20

3. in order for two statements to result in a cache hit, which of the following must be true

Question 3 of 20

4. Which single dynamic views is the most useful for determining bugger cache performance when using multiple buffer pools?

Question 4 of 20

5. according to oracle, what should the data dictionary hit ratio be for a well tuned oltp system

Question 5 of 20

6. Which two are valid modes for a process requesting latches?

Question 6 of 20

7. the process of preparing a statement for execution is called

Question 7 of 20

8. which dynamic data dictionary view contains information about the library cache hit ratio

Question 8 of 20

9. Where can you find the non default parameters when the instance is started ?

Question 9 of 20

10. Which type of change to an application is most likely to improve performance of the library cache?

Question 10 of 20

11. What are  two benefits of using locally managed tablespaces with segment space management set to auto?

Question 11 of 20

12. You pinned an object in the shared pool using the DBMS_ SHARED_ POOL package.Which command could you use to unpin this object, assuming you are in a SQL * Plus session?

Question 12 of 20

13. Which statement about the amount of undo generated is  true?

Question 13 of 20

14. What  can you use the values in the GETS and GETMISSES columns of V$ROWCACHE to determine the hit ratio for?

Question 14 of 20

15. Which action could result in less frequent checkpoints?

Question 15 of 20

16. What are two possible causes of lock contention?

Question 16 of 20

17. which of the following types of indexes stores the indexed columns values associated row id as binary string

Question 17 of 20

18. which of the following factors would not make a column a good candidate for b-tree index

Question 18 of 20

19. What is the main reason to create a reverse key index on a column?

Question 19 of 20

20. Which three SQL statements can use the NOLOGGING mode to reduce redo operations?

Question 20 of 20


 

I hope you like this Oracle Database 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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