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MongoDB Exam C100DBA Topic 1 Question 65 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 65
Topic #: 1
[All C100DBA Questions]

The oplog (operations log) is a special capped collection that keeps a rolling record of all operations that modify the data stored in your databases. All the replica set members contain a copy of the oplog in the following collection:

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Suggested Answer: A

by Ryan at Feb 02, 2023, 09:49 AM

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Tonette
13 days ago
Wait, is the oplog stored in the 'local' database or the 'local.oplog.rs' collection? I'm so confused, time to phone a friend!
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Meghann
14 days ago
Option A seems right to me. The oplog has to be specific to each replica set, so it makes sense that it would have the replica set ID in the collection name.
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Jenise
15 days ago
Haha, I bet the correct answer is option C. Gotta love those sneaky database names with extra periods!
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Sommer
18 days ago
I think it's option B. The oplog is a standalone collection named 'oplog.rs', not tied to a specific replica set ID or database.
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Jannette
1 months ago
I'm pretty sure it's option D. The oplog is stored in the local database, which is a special database that's not part of the normal data storage.
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Wenona
2 months ago
I'm not sure, but I think it's A) .oplog.rs.
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Carey
2 months ago
I agree with Ahmed, because the oplog is stored in the local database.
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Ahmed
2 months ago
I think the answer is D) local.oplog.rs.
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