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H13-831_V2.0 · Question #2787
H13-831_V2.0 Question #2787: Real Exam Question with Answer & Explanation
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Question
The object storage service OBS uses the distributed data fault-tolerant technology Erasurecode (EC) to ensure both high data reliability and data security. Which of the following descriptions of EC technology are wrong? (Multiple choice)
Options
- AData will be redundantly sharded and stored in different servers. If the number of failures is less than
- BEC algorithm can greatly improve storage utilization compared to the 3-copy mechanism
- CEC is mainly used to improve utilization. When a hard drive fails, the data reconstruction speed is
- DEC's M+N redundancy mode is a repackaging of RAID 5 technology.
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