MongoDB Mastering MongoDB for Beginners (Theory and Projects) - Solution($mod)

The video tutorial explains how to create a collection in a database and populate it with data. It then demonstrates how to filter documents based on whether their quantities are even or odd using the mod operator. The tutorial addresses issues with filtering odd numbers and provides solutions, including using the not operator and adjusting the mod logic.

What is the first step in working with a database collection according to the video?

• Updating the collection

• Deleting the collection

• Creating the collection and inserting data

• Querying the collection

How can you determine if a quantity is even in a database?

• By using the modulus operator to see if the remainder is one when divided by three

• By checking if the number is greater than 10

• By using the modulus operator to see if the remainder is zero when divided by two

• By checking if the number is less than 5

Which of the following numbers would be considered even?

• 15

• 20

• 30

• 25

What is one method to identify odd numbers in a database?

• Using the modulus operator with two and checking for a remainder of zero

• Using the modulus operator with four and checking for a remainder of zero

• Using the modulus operator with three and checking for a remainder of zero

• Using the modulus operator with two and checking for a remainder of one

Which logical operator can be used to find odd numbers by negating the even condition?

• NOT operator

• AND operator

• XOR operator

• OR operator