This certification validates practical skills in database management, including data preparation, analysis, governance, and communicating reliable insights. It is intended for professionals who build or operate data-driven solutions.
Given the following documents in a collection: { _id: 1, n: ‘Apple’, p: 0.75, c: ‘Green’, q: 14 }, { _id: 2, n: [1,3,5,7], c: 14}, { _id: 3, n: ‘Orange’, p: 0.8...
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Get Started FreeWhat connection option names in the URI for specifying minimum and maximum number of connections may exist in a connection pool?
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Get Started FreeGiven the following query generates a collection scan: db.grades.find({“class_id” : 149 , “scores.score” : {$gt : 75 }}). sort ({“score.type”:1}) Which two inde...
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Get Started FreeGiven the following command: db.rnd.find({r: {$lt: 2}}).toArray(); With rnd being composed of: db.rnd.find().sort({r: 1}) { _id: 4, r: 0} { _id: 2, r: 2} { _id:...
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Get Started FreeGiven the following sample documents in the incidents collection: What command updates only the earliest opened incident, changes its status to “In Progress”, a...
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