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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Q. The ______ instances are the routers for the cluster.

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Q. A single sharded cluster must have exclusive use of its _______ servers.

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Q. When a chunk grows beyond the chunk size, MongoDB attempts to split the chunk into smaller chunks, always based on ranges in the _____________

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Q. Point out the correct statement.

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Q. The index on the shard key cannot be a _________ index.

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