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GCP Associate Cloud Engineer Practice Question

You manage a Cloud Firestore database in Native mode. Each document in the incidents collection contains a timestamp field createdAt and an array field tags. Operations wants to display the 20 most recent incidents whose tags array contains either "urgent" or "high". Which Node.js Admin SDK query retrieves the correct documents in a single request?

  • incidentsRef.where('tags', 'array-contains', 'urgent').where('tags', 'array-contains', 'high').orderBy('createdAt', 'desc').limit(20)

  • incidentsRef.where('tags', 'array-contains-any', ['urgent', 'high']).orderBy('createdAt', 'desc').limit(20)

  • incidentsRef.where('tags', '==', ['urgent', 'high']).orderBy('createdAt', 'desc').limit(20)

  • incidentsRef.where('tags', 'in', ['urgent', 'high']).orderBy('createdAt', 'desc').limit(20)

GCP Associate Cloud Engineer
Ensuring successful operation of a cloud solution
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