Suppose you are connected to mongod instance that is already running on port 27000 as admin user. You have to dump reviews collection from the restaurants database to BSON file. Which command should you use?

• A.mongodump --db restaurants --collection reviews
• B.mongodump --db reviews --collection restaurants
• C.mongoexport --db restaurants --collection reviews

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Which cursor method should you use to force MongoDB to use a specific index for a query?

• A.cursor.index()
• B.cursor.hint()
• C.cursor.explain()
• D.cursor.use()

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Which of the following actions are granted to the built-in readWrite role?

• A.update
• B.remove
• C.insert
• D.find

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Suppose you added the following index to a products collection: { product_category: 1 } Which of the following operations can potentially decrease performance?

• A.db.products.insertOne( { product_category: 'clothes' } )
• B.db.products.find( { product_category: 'clothes' } )
• C.db.products.updateOne( { product_category: 'shoes' }, { $set: company: 'Nike' } )

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Select all true statements about auto bucketing feature in Aggregation Framework. ($bucketAuto stage)

• A.This stage distributes documents evenly across predefined number of buckets.
• B.The granularity option allows us to specify preferred bucket boundaries.
• C.The syntax for this stage is as follows:

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