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I'm going to take the cloud developer certification, and I've been training myselv with some sample tests. there's one question I do not really understand. What is the correct answer in this question? I would choose A. But the correct answer according to the test is B. can someone explain me why B is correct?

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Not totally sure why B is the right answer aside from all of the other answers not looking correct.

I mean, the sooner you set a CNAME record, the sooner customers/clients will see the newly migrated site.

A CNAME DNS record is just an alias to another (non ip address) DNS record.

Maybe they just mean that when you are instructed to make the change; The sooner it's done, the better, since DNS changes take some time to propagate across the internet.

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