Point out the wrong statement.(a) Beginning with version 3.0, MongoDB – InterviewSolution

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1.	Point out the wrong statement.(a) Beginning with version 3.0, MongoDB ships with the WiredTiger storage engine(b) Some global operations, typically short lived operations involving multiple databases, still require a global “instance-wide” lock(c) The MMAPv1 storage engine uses collection-level locking(d) None of the mentioned
Answer» The correct choice is (d) None of the mentioned The explanation: MongoDB operations can also yield locks between individual document modifications in write operations that affect multiple documents like update() with the multi parameter.

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