A.  In MongoDB, clients cannot see the results of writes before they are made durable

B.  Users may configure read preference on a per-connection basis to prefer that the read operations return results from the secondary members

C.  Clients cannot read data which may be subsequently rolled back

D.  None of the mentioned

1
Correct Answer :
Users may configure read preference on a per-connection basis to prefer that the read operations return results from the secondary members
Explanation :
No Explanation available for this question

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