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Oracle 1Z0-902 Exam - Topic 11 Question 43 Discussion

Actual exam question for Oracle's 1Z0-902 exam
Question #: 43
Topic #: 11
[All 1Z0-902 Questions]

Which statement is true about the disks that are used in ASM diskgroups on the Exadata platform?

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Suggested Answer: C

According to Oracle's documentation1, the Cell Control Command-Line Interface (CellCLI) utility is the command-line administration tool for Oracle Exadata System Software. It can be used to perform various tasks on Exadata Storage Servers, such as creating and managing objects, monitoring performance, and configuring alerts.

To run CELLCLI commands on multiple cells simultaneously, you can use the Distributed Command-Line Interface (dcli) utility2. The dcli utility allows you to execute commands or scripts on a group of cells or hosts in parallel.You can use the dcli utility to copy files from one cell or host to multiple cells or hosts using the -f option3.You can also use the dcli utility to execute commands or scripts on multiple cells or hosts using the -l option to specify a user name and the -g option to specify a file containing a list of cells or hosts3.

Therefore, to achieve your requirement of running a script with several CELLCLI commands on each cell in your Exadata full rack simultaneously, you must:

Copy and execute the script on all storage servers using the dcli command.


by Arlie at Jun 24, 2024, 03:17 PM

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Haley
6 months ago
Wait, can you really mix EF and HC disks? That seems risky!
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Sharee
6 months ago
Totally agree with B, size isn't everything!
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Elli
6 months ago
C sounds a bit off, are sparse diskgroups really virtual?
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Adelina
7 months ago
I thought A was correct, each disk in its own failure group?
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Youlanda
7 months ago
B is definitely true, performance matters!
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Amie
7 months ago
I have a vague memory of sparse diskgroups, but I'm not confident about option C. It feels like it could be a trick question.
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Murray
7 months ago
I recall practicing a question similar to D, where we talked about redundancy and specifying disks across Exadata machines. It might be the right choice.
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France
7 months ago
I'm not entirely sure, but I remember something about failure groups. Was it A that mentioned each disk in a separate failure group? That seems a bit off.
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Nathalie
7 months ago
I think option B sounds familiar because we discussed how performance characteristics are important for balancing workloads in ASM.
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Georgiana
7 months ago
Ah, I remember learning about this in class. Time to apply that knowledge and select the right option.
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Jeanice
7 months ago
This seems straightforward. I'm pretty confident I know the correct statement about Exadata disks in ASM diskgroups.
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Judy
7 months ago
I'm a bit confused by the wording of the question. I'll need to review my notes on Exadata disk configuration to be sure I understand the right answer.
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Keva
8 months ago
Okay, I think I know the answer to this one. Let me double-check the details on Exadata disk groups.
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Daniela
8 months ago
Hmm, this one looks tricky. I'll need to think through the Exadata storage architecture carefully to figure this out.
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Kimberlie
8 months ago
Option D seems interesting, using middleware to flatten the JSON. I'd have to research that approach a bit more, but it could be a clever way to handle the nested structure.
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Hortencia
8 months ago
Okay, let me think this through. The key seems to be whether to enable or disable the embedded Data Fabric during the controller install. I'll need to weigh the trade-offs there.
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Kenneth
8 months ago
I'm a bit confused on this one. I know redundancy is important for security, but I'm not sure which type would specifically prevent physical attacks. Maybe I should review my notes on that.
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Rosalind
8 months ago
I always look for the option that balances challenge with safety - that's definitely option D for me.
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Samira
1 year ago
Hmm, I think I'll go with option B. Gotta make sure those disks are pulling their weight with similar performance characteristics.
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Shawana
11 months ago
User 3: It's crucial to ensure all grid disks have the same performance to avoid any bottlenecks.
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Lauran
11 months ago
User 3: It's crucial to ensure all grid disks have the same performance to avoid any bottlenecks.
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Haydee
11 months ago
User 2: Definitely, having similar performance characteristics is key for ASM diskgroups on Exadata.
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Tish
11 months ago
User 1: I agree, option B is important for maintaining consistent performance.
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Tammi
11 months ago
User 2: Definitely, having similar performance characteristics is key for ASM diskgroups on Exadata.
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Dorinda
12 months ago
User 1: I agree, option B is important for maintaining performance consistency.
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King
1 year ago
Haha, option A is just plain wrong. Each disk in an Exadata storage server is not placed into a separate failure group, that would be crazy!
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Ronny
12 months ago
Yeah, option A doesn't make sense at all.
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Wava
1 year ago
I think the correct statement is actually option B.
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Angelo
1 year ago
I agree, option A is definitely incorrect.
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Raul
1 year ago
Wow, these options are tricky. I'm going to go with option C - sparse diskgroups are virtual objects allocated from the DATA diskgroup.
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Carol
11 months ago
I agree. Option B is the correct answer.
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Lanie
11 months ago
That makes sense. Option B does seem like the most accurate statement.
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Dana
11 months ago
I think option B is the correct statement. Grid disks in ASM diskgroups must have similar performance characteristics.
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Corrina
12 months ago
Option C is incorrect. Sparse diskgroups are not virtual objects allocated from the DATA diskgroup.
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Fidelia
1 year ago
Hold up, option D is the way to go. If you select High redundancy, you need to specify grid disks from both the primary and secondary Exadata machines.
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Merlyn
1 year ago
I think option E is correct. Exadata allows you to mix EF and HC disks in the same diskgroup, as long as they're all the same capacity.
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Charlesetta
1 year ago
I'm pretty sure it's option B. The disks in an ASM diskgroup must have similar performance characteristics, not just the same size.
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Sage
1 year ago
Hmm, that makes sense too. I guess we need to review the material more carefully before the exam.
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Renay
1 year ago
I disagree, I believe the correct answer is D) If High redundancy is selected, grid disks from the primary and secondary Exadata Database Machine must be specified.
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Sage
1 year ago
I think the answer is B) The grid disks in ASM diskgroups must have similar performance characteristics in addition to having the same size.
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