Exam ACA-Cloud1 topic 1 question 57 discussion

Actual exam question from Alibaba's ACA-Cloud1

Question #: 57
Topic #: 1

Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured and cost effective storage service. One of the special characteristics of OSS is its superior data reliability, because of its underlying backup technology and policies. Which of the following statement about OSS backup is correct?

A. OSS supports 3 internal data copies, so the data can be manually recovered should there be any problem.
B. Customer has to safeguard their own data. OSS provides various backup interfaces to facilitate offsite backups.
C. OSS leverages RAID0+1 configuration of its underlying physical hard disks. There is no impact even if 2 hard disks were to fail simultaneously.
D. OSS supports 3 internal data copies, no human intervention is required to recover the data when anything goes wrong.

Show Suggested Answer

Suggested Answer: B 🗳️

by DCT at Nov. 24, 2022, 3:42 p.m.

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jaryd_

12 months ago

Answer is D. B is not correct. While customers are responsible for their data in the sense of managing access and content, OSS takes care of the underlying storage infrastructure and ensures data durability through its automatic backup and redundancy mechanisms. It provides various interfaces for users to initiate offsite backups as an additional layer of protection, but the core data security is handled by OSS.

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DCT

2 years ago

Selected Answer: D

DDDDDDD

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