Q. To provide high availability and data consistency, in a production sharded cluster, each shard is a ___________

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Q. _________ interface with client applications and direct operations to the appropriate shard or shards.

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Q. A sharded cluster can contain __________ query router to divide the client request load.

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Q. Point out the correct statement.

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Q. ________ servers store the cluster’s metadata.

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Q. The query router uses __________ to target operations to specific shards.

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Q. Point out the wrong statement.

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Q. Production sharded clusters have exactly ______ config servers.

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Q. A _________ key is either an indexed field or an indexed compound field that exists in every document in the collection.

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Q. To divide the shard key values into chunks, MongoDB uses _____ based partitioning.

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Q. With hash based partitioning, two documents with _____ shard key values are unlikely to be part of the same chunk.

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Q. _______ based partitioning, by contrast, ensures an even distribution of data at the expense of efficient range queries.

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Q. MongoDB allows administrators to direct the balancing policy using ______ aware sharding.

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Q. Point out the correct statement.

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Q. Tags are the primary mechanism to control the behavior of the _______ and the distribution of chunks in a cluster.

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Q. How many background process runs behind balanced cluster?

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Q. Point out the wrong statement.

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Q. _________ is a background process that keeps chunks from growing too large.

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Q. The shards manage _______ migrations as a background operation between an origin shard and a destination shard.

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Q. For most deployments, the default value of chunk is _____ megabytes is ideal.

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