______ runs a database command against the admin database of a mongos instance.

A) sh._check()

B) sh._checkFullName()

C) sh.getBalancerLockDetails()

D) sh._adminCommand()

Correct Answer : sh._adminCommand()

Explanation : sh._adminCommand() runs a database command against the admin database, like db.runCommand(), but can confirm that it is issued against a mongos.

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