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MongoDB C100DBA Exam - Topic 1 Question 92 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 92
Topic #: 1
[All C100DBA Questions]

Which of the following is true of the mechanics of replication in MongoDB? Check all that apply.

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Suggested Answer: C

by Paz at Jul 09, 2024, 09:25 AM

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Devora
6 months ago
Yeah, I've seen A in action, it works as described!
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Lynda
6 months ago
Wait, is it really a capped collection for the oplog?
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Albert
6 months ago
B seems off, clients don't always read from the nearest.
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Ellen
7 months ago
I agree with C, the oplog is definitely a thing!
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Martha
7 months ago
A is true, members can replicate from each other.
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Coral
7 months ago
I practiced a similar question about replica sets, and I think A and C are the ones I would go with, but I'm still a bit confused about B.
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Andrew
7 months ago
I definitely remember that operations on the primary are logged in the oplog, so I think option C is definitely true.
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Lindsay
7 months ago
I feel like option B might be true, but I can't recall if clients always read from the nearest member or if there's a setting for that.
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Daisy
8 months ago
I think option A is correct because I remember reading about how replica sets work in MongoDB, but I'm not entirely sure if it applies to all configurations.
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Amira
8 months ago
Replication can be a tricky topic, but I've practiced a lot of questions like this. I'm going to read through the options carefully and eliminate any that don't sound right.
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Aja
8 months ago
Okay, let me break this down step-by-step. I know the oplog is important for replication, so that's a good place to start.
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Tamera
8 months ago
Hmm, I'm not totally sure about the mechanics of replication in MongoDB. I'll have to think this through carefully.
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Regenia
8 months ago
This question seems straightforward, I'm pretty confident I can handle it.
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Sang
8 months ago
I remember learning about replica sets in class, so I think I have a good understanding of how replication works in MongoDB. I'll just double-check my notes to be sure.
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Chauncey
8 months ago
Hmm, I'm a little unsure about this. I know the market-based method looks at external factors, but I can't quite remember if it's primarily about the nature and level of work or the internal value. I'll have to think this through carefully.
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Shalon
2 years ago
I'm just glad the question didn't ask about the 'mongooprah' command. That one always trips me up!
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Blythe
2 years ago
Option B sounds right to me. Isn't that how MongoDB is designed to work, to read from the nearest member by default?
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Kenneth
2 years ago
Hmm, I don't know about option B. Isn't that just a default setting that can be changed? Maybe it's not always true.
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Bambi
2 years ago
I think it can be changed, so it may not always be true.
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Gladys
2 years ago
Option B is true, clients do read from the nearest member by default.
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Vivan
2 years ago
I think A and C are both true. The replica set members can replicate from each other, and the oplog is where the primary stores the operations.
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Clare
2 years ago
I'm pretty sure option C is correct. The oplog is where the primary records all operations, right?
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In
2 years ago
So, the correct options are A and C. Good job on identifying them!
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Shad
2 years ago
Option C is definitely true. The oplog is essential for replication in MongoDB.
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Jestine
2 years ago
You're right. Option A is also correct. Members can replicate data from any other data-bearing member by default.
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Jaime
2 years ago
That's right. The oplog is a capped collection that stores all the operations on the primary.
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Melissa
2 years ago
Yes, you are correct. Option C is true. The oplog is where all operations on the primary are recorded.
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Jenise
2 years ago
That's good to know. I think option A is also true. Members of a replica set may replicate data from any other data-bearing member.
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Refugia
2 years ago
Option C is definitely true. The oplog is essential for replication in MongoDB.
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Mollie
2 years ago
Yes, you are correct. Option C is true. The oplog is where the primary records all operations.
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Olen
2 years ago
That's right. The oplog is a capped collection that stores all the operations on the primary.
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Meghan
2 years ago
Yes, you are correct. Option C is true. The oplog is where the primary records all operations.
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Mendy
2 years ago
I'm not sure about B), but I think A) and C) are definitely true based on my understanding of MongoDB replication.
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Paulina
2 years ago
I agree with A), but I also think C) is true because operations on the primary are recorded in the oplog.
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Arthur
2 years ago
I think A) is true because members can replicate data from any other data-bearing member.
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