GCP - Cloud Firestore and BigtableWhich of these is the correct way to represent a Firestore document field with a nested map?A"address: city = NYC"B["address", "city", "NYC"]C{"address": {"city": "NYC", "zip": "10001"}}Daddress: city, zipCheck Answer
Step-by-Step SolutionSolution:Step 1: Understand Firestore document field syntaxFirestore fields use JSON-like key-value pairs; nested maps are objects inside objects.Step 2: Identify correct JSON representation{"address": {"city": "NYC", "zip": "10001"}} correctly shows a nested map with keys and values inside braces.Final Answer:{"address": {"city": "NYC", "zip": "10001"}} -> Option CQuick Check:Nested map = JSON object inside field [OK]Quick Trick: Nested maps use JSON objects inside fields [OK]Common Mistakes:Using arrays instead of mapsIncorrect string formattingMissing braces for nested objects
Master "Cloud Firestore and Bigtable" in GCP9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallTime
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