In the storage disaster recovery and backup solution, the RPO of a storage product is 30 minutes and the RTO is 15 minutes. Which of the following statements are correct?
Exactly! And option D is incorrect because the period from the fault occurrence to service recovery is 15 minutes, which contradicts the RTO of 15 minutes.
Ah, I see. Option C seems to be the correct answer then. The time difference between the production site and the DR site is 30 minutes, which aligns with the given RPO of 30 minutes.
That's a good catch. Now, option B mentions the duration from the time a fault occurs to the time the service is suspended and then recovered is 45 minutes. But the RTO is only 15 minutes, so this option is also incorrect.
Okay, let's start with option A. If the RPO is 30 minutes and the RTO is 15 minutes, the time difference between the production site and the DR site should be 30 minutes, not 45 minutes. So, option A is incorrect.
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