H13-531: HCIE-Cloud Computing V3.0 (Write)Demo

By Huawei · Question Mode

QuestionQ90

HUAWEI CLOUD Stack DR and Backup Service Introduction

Which of the following statements are accurate about the HUAWEI CLOUD Stack data-center DR solution?

Choose three
  • A To reduce costs, an enterprise builds only one data center. In this case, the local data backup or local HA solution can be used to protect services.
  • B If an enterprise plans to construct intra-city DR, the distance between the DR center and the production center cannot be greater than 100 km. In this case, the active-active data center solution can be used.
  • C A large enterprise plans to build a DR data center in another city. It is recommended that the distance between the two data centers be greater than 100 km. The geo-redundant DR solution can be used.
  • D After the DR service is deployed, you do not need to deploy backup services.
Explanation

A single data center can use local backup or local HA for protection. An intra-city DR center is typically within dozens of kilometers of the production center, while a remote DR center is normally hundreds or thousands of kilometers away to protect against regional disasters; these align with active-active intra-city and geo-redundant remote DR designs. Disaster recovery cannot replace backup because real-time replication can propagate accidental deletions or incorrect changes, whereas backups provide recoverable historical points.

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