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________ tests to see if the mongo shell is connected to a mongos instance.

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________ tests to see if the mongo shell is connected to a mongos instance.

(a) sh._checkMongos()

(b) sh.addShard()

(c) sh._lastMigration()

(d) all of the mentioned

This question was posed to me by my college director while I was bunking the class.

Question is taken from Sharded Cluster Data Management in division Sharding Concepts, Mechanics and Sharded Cluster of MongoDB

1 Answer

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Best answer
Correct option is (a) sh._checkMongos()

Explanation: The sh._checkMongos() method throws an error message if the mongo shell is not connected to a mongos instance.

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