Point out the correct statement.(a) Read operations on sharded clusters are most efficient when directed to a specific shard(b) Sharded clusters allow you to partition a data set among a cluster of mongod instances in a way that is nearly transparent to the application(c) For a sharded cluster, applications issue operations to one of the mongos instances associated with the cluster(d) All of the mentionedThe question was asked by my college professor while I was bunking the class.My question comes from Write operations topic in portion MongoDB CRUD Concepts and Operation of MongoDB

Point out the correct statement.(a) Read operations on sharded cluster

1.	Point out the correct statement.(a) Read operations on sharded clusters are most efficient when directed to a specific shard(b) Sharded clusters allow you to partition a data set among a cluster of mongod instances in a way that is nearly transparent to the application(c) For a sharded cluster, applications issue operations to one of the mongos instances associated with the cluster(d) All of the mentionedThe question was asked by my college professor while I was bunking the class.My question comes from Write operations topic in portion MongoDB CRUD Concepts and Operation of MongoDB
Answer» The correct choice is (d) All of the mentioned The BEST I can EXPLAIN: Queries to SHARDED collections should include the collection’s shard KEY.

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