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Which of the following statement(s) is/are the responsibilit…

Which of the following statement(s) is/are the responsibility of the learner in this course? Check all that apply.

Published May 28, 2025
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The following statements are correct regarding all lecture e…

The following statements are correct regarding all lecture exams. (Choose all that apply)

Published May 28, 2025
Categorized as Uncategorized

There are no extra credit assignments for this course.

There are no extra credit assignments for this course.

Published May 28, 2025
Categorized as Uncategorized

Which command is used to drop a collection in MongoDB?

Which command is used to drop a collection in MongoDB?

Published May 28, 2025
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Given the following upsert operation: db.inventory.updateOn…

Given the following upsert operation: db.inventory.updateOne(   {item: “pencil”},   {$set: {qty: 50, price: 0.99}},   {upsert: true}) What happens if no document with item: “pencil” exists in the collection?

Published May 28, 2025
Categorized as Uncategorized

Given the following index creation and query: db.users.cre…

Given the following index creation and query: db.users.createIndex({gender: 1, user_name: 1}) db.users.find({gender: “M”}, {user_name: 1, _id: 0}) What is the most important reason this query is considered a covered query?

Published May 28, 2025
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Which of the following commands will limit the number of doc…

Which of the following commands will limit the number of documents displayed to 2?

Published May 28, 2025
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Which of the following options best describes how MongoDB en…

Which of the following options best describes how MongoDB ensures data consistency across a sharded cluster?

Published May 28, 2025
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Consider the following query: db.books.find({$nor: [{“public…

Consider the following query: db.books.find({$nor: [{“publication year” : “2016”}, {“title” : “MongoDB”}]}).pretty() What does this query return?

Published May 28, 2025
Categorized as Uncategorized

When using the $group stage in MongoDB’s aggregation framewo…

When using the $group stage in MongoDB’s aggregation framework, which of the following fields is mandatory?

Published May 28, 2025
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