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MongoDB Operators Quiz
MongoDB operators play a crucial role in querying and manipulating data efficiently. From comparison and logical operators to aggregation and array operators, these tools help streamline database operations. Whether you're a beginner or an experienced user, this quiz will test your understanding of MongoDB operators and their applications.
Question 1
Which MongoDB operator is used to compare two values and return -1, 0, or 1?
$gt
$eq
$cmp
$lte
Question 2
What does the $gte operator do in MongoDB?
Compares if one value is greater than another
Checks if a field is greater than or equal to a given value
Compares if one value is strictly equal to another
Sorts documents in ascending order
Question 3
Which logical operator in MongoDB returns true if all conditions are met?
$or
$nor
$not
$and
Question 4
What does the $multiply operator do in MongoDB?
Multiplies two values
Finds the product of an array of numbers
Multiplies a field value by a specified number
Performs an aggregation on numeric fields
Question 6
How does the $pop operator work in MongoDB?
Removes the last element of an array
Removes the first element of an array
Removes an element at a specified index
Can remove the first or last element of an array
Question 7
What is the function of the $rename operator in MongoDB?
Updates a field’s value
Renames a field in a document
Changes the type of a field
Removes a field from a document
Question 8
Which array query operator is used to return the length of an array?
$size
$isArray
$arrayElemAt
$count
Question 9
What does the $strcasecmp operator do in MongoDB?
Concatenates two strings
Converts a string to uppercase
Compares two strings case-insensitively
Splits a string into an array
Question 10
How do you find an element at a specific index in a MongoDB array?
$elemMatch
$arrayElemAt
$indexOfArray
$slice
There are 10 questions to complete.
