C100DEV Exam Dumps | Given a companies collection where each document has the following structure: { _id: ObjectId('61a8b90c6d5ce6a7d8fef95e'),...

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Question 77

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Question 77/92

Given a companies collection where each document has the following structure:
{ _id: ObjectId('61a8b90c6d5ce6a7d8fef95e'), name: 'Facebook', tag_list: ['facebook', 'college', 'students', 'network'], description: 'Social network' }
Which of the following commands will add new fields to the updated documents?

A. db.companies.updateMany({ "name": "Facebook" }, { "$push": { "tag_list": "media" } })

B. db.companies.updateMany({ "name": "Facebook" }, { "$set": { "description": "Social media" } })

C. db.companies.updateMany({ "name": "Facebook" }, { "$set": { "country": "USA" } })

Correct Answer: C

https://docs.mongodb.com/manual/reference/method/db.collection.updateMany/

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