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Oracle Architecture MCQ

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Oracle Architecture MCQ

This Oracle Architecture MCQ test check the understanding on various topics like Recovery Manager (RMAN), Oracle Architecture concept like shared pool ,PGA, Library cache size,Backup & recovery , Oracle Memory structure, Background processes, Dictionary views , alert logs ,oracle tablespace ,indexes , profiles and many more

The below test is randomized Oracle Architecture MCQ 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. which of the following oracle background process writes blocks from the database buffer caches to the datafile

Question 1 of 40

2. which lock type is taken out when creating, dropping or altering a table

Question 2 of 40

3. Which one of the following files contains records that are rejected by SQL*Loader due to invalid input format?

Question 3 of 40

4. Due to a media failure the user10.dbf data file was lost. Which one of the following commands must DBA use at the RMAN prompt, to copy the data files from the backup location to their default location before performing recovery operations?

Question 4 of 40

5. What is the most important action a DBA must perform after changing the database from NOARCHIVELOG TO ARCHIVELOG?

Question 5 of 40

6. Which one of the following parameters when specified determines the maximum number of the files that can be stored in each backup set?

Question 6 of 40

7. the alert log contains information on all but which of the following

Question 7 of 40

8. Among the listed recovery method types, which recovery requires the DBA to explicitly issue a recovery command?

Question 8 of 40

9. index organized tables store row data that exceeds the index’s pct threshold in what type of segment

Question 9 of 40

10. What is the significance of using the command SET NEWNAME in the script shown in the following code?
Run
{
allocate channel c1 type disk;
set newname for datafile 1 to '+DATA';
restore datafile 1;
switch datafile 1;
recover datafile 1;
sql 'Alter database open';
}

Question 10 of 40

11. Prior to performing an incomplete database recovery, what is the most important task that you are supposed to perform as a DBA?

Question 11 of 40

12. An oracle database is made up of

Question 12 of 40

13. which of the following types of indexes stores the indexed columns values associated rowid as binary string

Question 13 of 40

14. which of the following components of SGA caches recently accessed data , index and rollback block

Question 14 of 40

15. Which one of the following Oracle components or products must be installed and configured to enable the secure communications between the client and the server over the network?

Question 15 of 40

16. The buffers in the database buffer cache that are currently being accessed by a server process are referred to as?

Question 16 of 40

17. Which command will open a standby database in read-only mode?

Question 17 of 40

18. Which one of the following configuration files can be used to implement the host naming method?

Question 18 of 40

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

Question 19 of 40

20. In which one of the following loading methods does SQL*Loader compete with the other processes to acquire buffer resources?

Question 20 of 40

21. throughput is a measure of

Question 21 of 40

22. Which one of the following options would you use with RMAN to back up archive log files along with other files?

Question 22 of 40

23. Which one of the following views must you query from the recovery catalog database to obtain information about the backup sets that were created using RMAN?

Question 23 of 40

24. To enable a database to have more than one service associated with it, the connect descriptor SID parameter in the tnsnames.ora file has been replaced by which two parameters?(Choose two)

Question 24 of 40

25. which of the following is the first step in oracle’s recommended tuning

Question 25 of 40

26. an oracle instance is made up of

Question 26 of 40

27. Which one of the following commands must be issued to remove a stored script from the recovery catalog?

Question 27 of 40

28. Assume that you need to restore and recover a database that's operating in ARCHIVELOG mode. The archive log files available for recovery start from log sequence 21156 to 21190. If the archived log files with sequence number 21187, 21184, and 21180 are corrupted, then until which log sequence can you recover the database?

Question 28 of 40

29. which dba view would show storage, row, and block information for an table

Question 29 of 40

30. Which Oracle background process frees SGA resources that were allocated to a user process that failed?

Question 30 of 40

31. What is the default value for the initialization parameter CONTROL_FILE_RECORD_KEEP_TIME?

Question 31 of 40

32. Which two statements are true when corrupted blocks are skipped?

Question 32 of 40

33. which of the following views contains information about overall system statistics, both previously and currently connected

Question 33 of 40

34. if the init.ora optimizer mode is set to choose, but no statistics have been generated for the application’s tables and indexes, which optimizer mode will oracle user

Question 34 of 40

35. which of the following lock type is the most restrictive

Question 35 of 40

36. Which one of the following commands can you use to display whether or not the automatic archiving feature is enabled?

Question 36 of 40

37. which of the following background processes detects failed user process and roll backs

Question 37 of 40

38. When can you perform a database backup using RMAN if the database is in ARCHIVLOG mode?

Question 38 of 40

39. Which Oracle process is responsible for archiving the online redo log files when the automatic archiving feature is enabled in ARCHIVELOG mode?

Question 39 of 40

40. Which one of the following options of the export utility enables data to be directly transferred to the client without the intermediate evaluation buffer?

Question 40 of 40


 

I hope you like this Oracle Architecture MCQ 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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