The video tutorial explains how to solve a quiz problem by writing a query to find documents with ratings greater than 4.2 and then updating these documents by multiplying the order quantity by two using the Mull operator. The process involves writing a find query to identify the relevant documents and then using the update many function to apply the changes. The tutorial demonstrates the step-by-step approach to ensure understanding of the query and update operations.

What happens to the quantity after applying the update operation?

• It remains the same

• It is multiplied by two

• It is divided by two

• It is set to zero

Explain the significance of the searching criteria in the context of this operation.

• It determines which documents to update

• It specifies the new value for the quantity

• It defines the structure of the database

• It is not relevant to the operation