Alibaba ACA-Cloud1 Exam - Topic 5 Question 53 Discussion

Actual exam question for Alibaba's ACA-Cloud1 exam

Question #: 53
Topic #: 5

Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured and cost effective storage service. OSS is superior than self-built storage in all these aspects. Which of the following advantage relates

to the high availability of OSS?

AAvailability actually relies on the underlying hardware, which can break down easily. Once the hard disk malfunctions, it can also lead to permanent data loss.

BData Reliability is not less than 99.99999999%. Data is backed up automatically with multiple redundant copies.

CData has to be backed up by customer manually, which is time-consuming and labor-intensive.

DThe following features are available: Multiple Authentication and Authorization mechanism, Whitelist, Anti- leech URL, and Master-Sub Account

Show Suggested Answer

Suggested Answer: B

https://www.alibabacloud.com/blog/alibaba-cloud-object-storage-vs--ibm-cloud-and-oracle-cloud- equivalent_293464

by Shalon at Nov 22, 2023, 12:17 PM

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Dannette

3 months ago

Wait, are we sure about that reliability figure? Sounds too good to be true!

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Percy

3 months ago

Manual backups are a hassle, self-built might be better for some.

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Hailey

3 months ago

But isn't hardware still a risk? What if it fails?

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Joanna

4 months ago

Totally agree, 99.99999999% reliability is impressive!

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Lillian

4 months ago

OSS has automatic backups with multiple copies, super reliable!

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Noah

4 months ago

Option C seems wrong because it mentions manual backups, which would definitely not support high availability.

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Felicia

4 months ago

I think we had a practice question about data backup, and it emphasized the importance of automatic backups, which aligns with option B too.

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Veronika

4 months ago

I'm not entirely sure, but I feel like option A contradicts the idea of high availability since it talks about hardware failures.

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Corazon

5 months ago

I remember studying that high availability means the service should minimize downtime, so I think option B makes sense with the redundancy.

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Adolph

5 months ago

I think B is the correct answer here. The automatic data backup and redundancy mentioned in that option seem to be the clearest advantage for high availability, compared to the other options which focus more on other aspects like security or manual backup.

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Cammy

5 months ago

I'm a little confused by this question. The options talk about different features of OSS, but I'm not sure which one is directly related to high availability. I may need to review my notes on OSS to better understand the concept of availability before answering this.

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Maryann

5 months ago

Option B stands out to me as the best answer. The fact that data is automatically backed up with multiple redundant copies suggests a high level of availability and redundancy, which is key for a reliable storage service.

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Ramonita

5 months ago

Hmm, I'm a bit unsure about this one. The options mention a few different aspects of OSS, like availability, security, and backup. I'll need to carefully read through each option to determine which one specifically relates to high availability.

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Glory

5 months ago

This question seems straightforward. I think the answer is B - Data Reliability is not less than 99.99999999% and data is backed up automatically with multiple redundant copies. That seems like a clear advantage for high availability.

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Nichelle

5 months ago

This seems like a straightforward question about network protocols. I'll focus on understanding the key details about LMCP packets and LACp packet interaction cycles.

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Franklyn

5 months ago

I remember the degree of a table refers to the number of attributes it has, but I'm not sure how many there are in this one.

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Natalie

5 months ago

Okay, I've got this. A factorial experiment is when you run all combinations of the levels of two or more factors. That's the key distinction from a one-way experiment. I'm feeling confident about this one.

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