I remember a practice question about using a follower database for testing migrations. It seems like a safer approach since it wouldn't impact the main database.
Option D is definitely not the way to go here. Putting the app into maintenance mode just to test a database migration seems like overkill. I'm leaning towards A or C as the best approaches.
Hmm, I'm a bit unsure about this one. I'm trying to decide between A and C. Forking the production database or creating a follower database both seem like reasonable options. I'll need to think it through a bit more.
This seems like a straightforward question about database migration testing. I think I'll go with option C - creating a follower database and testing against that. It seems like the safest approach to avoid disrupting the production environment.
Ah, this is a good one. I think I'll go with option A - forking the production database. That way, I can test the migration without impacting the live system. It's a bit more work, but it's the safest option in my opinion.
I'm a little confused by the options here. Daemon Set, Replica Set, and Deployment all sound like they could potentially work. I'll have to review the differences between them to make sure I pick the right one.
Option D is an interesting idea, but I'm not sure putting the app into maintenance mode is the best approach. I'd prefer to keep the app up and running if possible.
I think option C is the way to go - creating a follower database and testing against that is a great way to ensure the migration won't break the production environment.
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