MongoDB Exam C100DBA Topic 1 Question 82 Discussion

Actual exam question for MongoDB's C100DBA exam

Question #: 82
Topic #: 1

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

AMembers of a replica set may replicate data from any other data-bearing member of the set by default

BClients read from the nearest member of a replica ser by default

COperations on the primary are recorded in a capped collection called the oplog

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Suggested Answer: C

by Fatima at Mar 10, 2024, 04:59 PM

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6 months ago

I'm not too sure about option C, could someone explain how operations on the primary are recorded in the oplog?

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7 months ago

I think option B is also true, clients read from the nearest member for efficiency.

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7 months ago

I agree with Loreen, that makes sense because it allows for distributed replication.

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7 months ago

I think the correct option is A, members can replicate data from any other data-bearing member.

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