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MongoDB C100DBA Exam - Topic 1 Question 77 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 77
Topic #: 1
[All C100DBA Questions]

You have designed a web application with mongoDB. You have configured replication. The replica set is in place and function properly. What happens in case of failure?

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Suggested Answer: A

by Wilda at Nov 26, 2023, 05:36 PM

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Ruthann
3 months ago
That's right, failover is seamless!
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Cassie
3 months ago
Nah, switchover is manual, failover is automatic.
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Catherin
3 months ago
Wait, are you sure? I thought it needed manual intervention.
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Micheline
4 months ago
Totally agree, it's designed for that!
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Ardella
4 months ago
Failover happens automatically with replica sets.
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Shenika
4 months ago
I think failover is automatic, but I also remember something about needing to do a manual switchover in certain situations. Maybe I should go with B?
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Reita
4 months ago
I’m a bit confused about the terms. I thought switchover was manual, but I can’t recall if failover is automatic or not.
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Deane
4 months ago
I’m not entirely sure, but I think switchover is different from failover. I feel like I’ve seen a question like this before, and it was about automatic failover.
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Lennie
5 months ago
I remember reading that failover in MongoDB is supposed to happen automatically when a primary goes down. So I think it might be option B.
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Stefany
5 months ago
I'm pretty sure the answer is B, failover happens automatically. That's one of the key benefits of using a replica set - it provides high availability and automatic failover in case of a primary node failure. I feel confident about this one.
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Ernie
5 months ago
I'm a bit confused on this one. I know we talked about replica sets, but I can't recall if the failover is manual or automatic. I'll have to review my notes to be sure. Maybe I'll skip this one for now and come back to it later.
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Amber
5 months ago
Okay, let's see. I remember that with a replica set, you have a primary node that handles all the writes, and secondary nodes that replicate the data. If the primary fails, one of the secondaries should automatically become the new primary. So I think the answer is B, failover happens automatically.
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Regenia
5 months ago
Hmm, I'm not entirely sure about this one. I know we covered replica sets in class, but I can't remember the specifics of how failover works. I'll have to think this through carefully.
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Man
5 months ago
I'm pretty confident that the answer is B. Failover happens automatically in a MongoDB replica set when the primary node fails. The secondary nodes will automatically elect a new primary to take over.
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Jutta
5 months ago
Hmm, I'm not too sure about this one. I'll have to think it through carefully to make sure I get the right vc-type.
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France
5 months ago
I'm pretty confident I know the answer here. It's option B - using an administrator-created storage server user with the appropriate privileges and calling CELLCLI on all the cells using exadcli.
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Madalyn
5 months ago
I think this is a great question to test our understanding of different machine learning algorithms. For an inventory prediction model, I would likely go with a Recurrent Neural Network (RNN) approach since it can effectively handle time-series data and learn from new inventory data on a daily basis.
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Nan
5 months ago
I feel pretty confident about this one. The key is looking for the option that mentions identifying additional capabilities or ways to improve things. That's what the "identify improvement opportunities" element is all about, so C is the clear answer in my opinion.
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Shawna
9 months ago
Ah, the age-old question of what happens when your MongoDB setup goes haywire. I'm gonna have to go with 'B) Failover happens automatically' - the less manual work, the better, am I right? Now, who wants to bet on how many 'sudo reboot' commands the poor sysadmin has to run?
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Juan
9 months ago
Oh, the joys of database administration! I reckon 'B) Failover happens automatically' is the way to go. Gotta love it when the technology does all the heavy lifting for us, eh?
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Laurel
8 months ago
Makes database administration a lot easier, that's for sure.
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Ethan
8 months ago
No need to worry about manual intervention with automatic failover in place.
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Chantell
8 months ago
It's great when technology can handle things like that for us.
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Shasta
8 months ago
I agree, 'B) Failover happens automatically' is definitely the way to go.
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Shizue
9 months ago
Alright, time to put my MongoDB expertise to the test! I'm gonna go with 'B) Failover happens automatically'. Anything that doesn't require manual intervention is a win in my book.
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Polly
8 months ago
User3: Automatic failover is definitely a plus for MongoDB replication.
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Quentin
8 months ago
User2: Yeah, that's right. No manual intervention needed.
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Kathrine
8 months ago
User1: I think failover happens automatically.
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Willow
10 months ago
Hmm, let me think... Automatic switchover sounds nice, but I'm gonna go with 'B) Failover happens automatically'. Gotta love it when the database takes care of itself, am I right?
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Fernanda
8 months ago
Definitely, it's a relief knowing the database can handle failures on its own.
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Kenneth
9 months ago
I prefer the automatic failover option as well.
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Avery
9 months ago
Yeah, it's great not having to worry about manual switchover.
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Bettina
10 months ago
I agree, 'B) Failover happens automatically' is the way to go.
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Martha
10 months ago
Ah, the good old MongoDB replication setup. Looks like we're in for a real treat here! I bet the answer is 'B) Failover happens automatically' - gotta love that sweet, sweet automatic fail-safe.
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Cheryl
9 months ago
Yes, that's correct. MongoDB replication has that fail-safe in place.
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Stephaine
9 months ago
I think you're right, failover does happen automatically.
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Carma
10 months ago
Yes, that's correct. MongoDB replication has that fail-safe in place.
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Samira
10 months ago
I think you're right, failover does happen automatically.
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Brittani
11 months ago
I'm not sure, but I think switchover needs to be done manually in case of failure.
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Nettie
11 months ago
I agree with Madonna. MongoDB replica sets are designed to handle failover automatically.
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Madonna
11 months ago
I think the answer is B) Failover happens automatically.
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