Oracle RAC Mock Interview

Master 45 Oracle RAC interview questions covering clustering, failover, and grid architecture.

Question 22 of 45

In Oracle RAC, what is the Automatic Storage System POWER_LIMIT?

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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.

Interviewers know that only well-qualified Oracle RAC administrators will know the answer to this question. They use questions like this to differentiate individuals who may have the right credentials for the job but not the knowledge, expertise, and experience. Every interviewer is looking for only the most qualified candidate to fill the position and, therefore, will use challenging questions to identify these.

William Swansen

One of your responsibilities during the interview is to determine if the job you are interviewing for is something you can do based on your background, skills, and experience. Even if you were to ace the interview and receive an offer, the job might not be a good fit for you if you don't have the skills and experience needed to perform the work. You would be unhappy in the position, and the employer would be disappointed in their hiring decision. Suppose you feel you are not qualified for the role for some reason. In that case, you should discuss this with the interviewer to see if they have a development program that would bring you up to speed or if there is a less demanding position available within the company.

William Swansen

"The Automatic Storage System POWER_LIMIT is the parameter that controls the number of allocation units the ASM instance can rebalance at any given moment. In ASM versions below 11.2.0.3, the default value is 11. However, this has been changed to unlimited in later versions."

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45Oracle RAC Interview Questions & Answers

General

1.Can you discuss what Oracle RAC is and how it is used?

General

2.Can you discuss the differences between Oracle RAC and Oracle Grid?

Technical

3.What is cache fusion in a RAC environment?

Technical

4.What is a split-brain in the context of Oracle RAC?

Technical

5.Please explain the difference between Crash recovery and Instance recovery.

Technical

6.How is interconnect used in Oracle RAC?

Operational

7.What do you use to determine what protocol is used for Oracle RAC Interconnect traffic?

Operational

8.How do you keep the time synchronized on all nodes in an Oracle RAC cluster?

Technical

9.What file components must reside on shared storage in RAC?

Technical

10.When there is a network or storage missed heartbeat, what does the Oracle RAC Clusterware write, and in what location?

Operational

11.How do you find out what types of OCR backups are available in Oracle RAC?

Operational

12.What options do you have to resolve a situation in which your OCR is corrupted?

Operational

13.What query do you use to find out what object has its blocks being shipped across the instance the most?

Technical

14.What is a VIP in Oracle RAC, and how is it used?

Operational

15.How can you find out which database instances are part of a RAC cluster?

Technical

16.What is Oracle Cluster Health Monitor, and how is it used in an Oracle cluster environment?

Technical

17.How would an Oracle RAC cluster be impacted if a less robust node with slower CPUs is added to the cluster?

Technical

18.What is an OLR, and how is it used in the Oracle RAC environment?

Technical

19.What is the default ASM memory allocation in Oracle 10g, 11g, and 12c?

Operational

20.What method do you use to restore backup ASM Metadata?

Technical

21.What types of files can be stored in the ASM disk group in Oracle 11g and 12c?

Technical

22.In Oracle RAC, what is the Automatic Storage System POWER_LIMIT?

Operational

23.What is the advantage of using a rolling upgrade in an Oracle RAC environment?

Technical

24.What are some of the parameters specific to Oracle RAC?

General

25.In your opinion, what is the future of Oracle Grid?

Operational

26.What components of the Oracle Grid do you regularly back up?

Operational

27.What command would you use to verify the inventory for all the Oracle RAC remote nodes?

General

28.What are some of the typical uses of Oracle RAC?

Operational

29.What are some of the OEM tools associated with Oracle RAC?

Operational

30.How would you accomplish the task of identifying and verifying the inventory in the remote nodes of an Oracle RAC environment?

Behavioral

31.Can you describe a time when you were asked to do something you had never done before? How did you react?

Behavioral

32.Please describe a situation where you needed to adapt a process, procedure, or technology differently from how you did things.

Behavioral

33.Can you recall a time when you were assigned a task that wasn't a part of your job description. How did you handle this, and what was the outcome?

Behavioral

34.Tell me about an aspect of your profession when you are the most satisfied, energized, and productive at work.

General

35.Why did you choose to interview with our organization rather than with others in our industry?

General

36.What's a misconception your coworkers have about you, and why do you believe they feel this way?

General

37.What's the most interesting thing about you that I didn't see on your resume?

Behavioral

38.Can you give me an example of when you had to work with someone difficult to get along with and discuss how you handled the situation?

Behavioral

39.Please tell me about a time when something major didn't go according to plan at work.

Behavioral

40.Describe a situation where you needed to persuade someone about an idea or process.

Behavioral

41.Can you give me an example of when you felt you led by example, describing what you did and how your team reacted?

Behavioral

42.Tell me about a difficult decision you had to make in one of your previous roles.

Behavioral

43.Can you recall a time when your manager was unavailable when a situation arose that demanded an immediate resolution?

General

44.What is motivating you to make a move from your current role?

Behavioral

Oracle RAC Mock Interview

In Oracle RAC, what is the Automatic Storage System POWER_LIMIT?

45Oracle RAC Interview Questions & Answers

1.Can you discuss what Oracle RAC is and how it is used?

2.Can you discuss the differences between Oracle RAC and Oracle Grid?

3.What is cache fusion in a RAC environment?

4.What is a split-brain in the context of Oracle RAC?

5.Please explain the difference between Crash recovery and Instance recovery.

6.How is interconnect used in Oracle RAC?

7.What do you use to determine what protocol is used for Oracle RAC Interconnect traffic?

8.How do you keep the time synchronized on all nodes in an Oracle RAC cluster?

9.What file components must reside on shared storage in RAC?

10.When there is a network or storage missed heartbeat, what does the Oracle RAC Clusterware write, and in what location?

11.How do you find out what types of OCR backups are available in Oracle RAC?

12.What options do you have to resolve a situation in which your OCR is corrupted?

13.What query do you use to find out what object has its blocks being shipped across the instance the most?

14.What is a VIP in Oracle RAC, and how is it used?

15.How can you find out which database instances are part of a RAC cluster?

16.What is Oracle Cluster Health Monitor, and how is it used in an Oracle cluster environment?

17.How would an Oracle RAC cluster be impacted if a less robust node with slower CPUs is added to the cluster?

18.What is an OLR, and how is it used in the Oracle RAC environment?

19.What is the default ASM memory allocation in Oracle 10g, 11g, and 12c?

20.What method do you use to restore backup ASM Metadata?

21.What types of files can be stored in the ASM disk group in Oracle 11g and 12c?

22.In Oracle RAC, what is the Automatic Storage System POWER_LIMIT?

23.What is the advantage of using a rolling upgrade in an Oracle RAC environment?

24.What are some of the parameters specific to Oracle RAC?

25.In your opinion, what is the future of Oracle Grid?

26.What components of the Oracle Grid do you regularly back up?

27.What command would you use to verify the inventory for all the Oracle RAC remote nodes?

28.What are some of the typical uses of Oracle RAC?

29.What are some of the OEM tools associated with Oracle RAC?

30.How would you accomplish the task of identifying and verifying the inventory in the remote nodes of an Oracle RAC environment?

31.Can you describe a time when you were asked to do something you had never done before? How did you react?

32.Please describe a situation where you needed to adapt a process, procedure, or technology differently from how you did things.

33.Can you recall a time when you were assigned a task that wasn't a part of your job description. How did you handle this, and what was the outcome?

34.Tell me about an aspect of your profession when you are the most satisfied, energized, and productive at work.

35.Why did you choose to interview with our organization rather than with others in our industry?

36.What's a misconception your coworkers have about you, and why do you believe they feel this way?

37.What's the most interesting thing about you that I didn't see on your resume?

38.Can you give me an example of when you had to work with someone difficult to get along with and discuss how you handled the situation?

39.Please tell me about a time when something major didn't go according to plan at work.

40.Describe a situation where you needed to persuade someone about an idea or process.

41.Can you give me an example of when you felt you led by example, describing what you did and how your team reacted?

42.Tell me about a difficult decision you had to make in one of your previous roles.

43.Can you recall a time when your manager was unavailable when a situation arose that demanded an immediate resolution?

44.What is motivating you to make a move from your current role?

45.When was the last occasion you asked for direct feedback from your manager?