When defending against regional disasters, users can use a cross-region disaster recovery solution. Which of the following descriptions of a cross-region disaster recovery solution is wrong?

Question

Options

• ADatabase master/slave synchronization can be achieved using native database replication technology
• BThe disaster recovery center can be kept inactive until a disaster occurs, saving costs.
• CThe main system and disaster recovery system can be deployed in different cities
• DBefore a disaster occurs, users direct 50% of their traffic to the production center and 50% to the

• A
  11% (6)
• B
  5% (3)
• C
  2% (1)
• D
  82% (45)

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