Document size limits and structure rules in MongoDB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check the maximum document size allowed in MongoDB.

MongoDB

maxSize = [1]

Drag options to blanks, or click blank then click option'

A33554432

B1048576

C16777216

D8388608

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing kilobytes with megabytes.

Using the maximum size for collections instead of documents.

The maximum BSON document size in MongoDB is 16 megabytes, which equals 16777216 bytes.

2fill in blank

medium

Complete the code to create a document with a nested structure in MongoDB.

MongoDB

document = {"name": "Alice", "address": [1]

Drag options to blanks, or click blank then click option'

Anull

B{"city": "NY", "zip": "10001"}

C"city: NY, zip: 10001"

D["city", "NY", "zip", "10001"]

Attempts:

3 left

💡 Hint

Common Mistakes

Using arrays instead of objects for nested fields.

Using strings instead of objects for nested documents.

Nested documents in MongoDB are represented as embedded objects, like JSON objects.

3fill in blank

hard

Fix the error in the document structure to comply with MongoDB rules.

MongoDB

document = {"_id": ObjectId(), "name": "Bob", "age": [1]

Drag options to blanks, or click blank then click option'

A25

B[25]

C"twenty-five"

D{"value": 25}

Attempts:

3 left

💡 Hint

Common Mistakes

Storing numbers as strings.

Using arrays for single values.

Age should be stored as a number, not as a string or array, to follow MongoDB best practices.

4fill in blank

hard

Fill both blanks to create a valid MongoDB document with an array and a nested document.

MongoDB

document = {"tags": [1], "profile": [2]

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A["mongodb", "database"]

B{"age": 30, "city": "LA"}

C["age", 30]

D"profile info"

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings instead of arrays for tags.

Using arrays instead of objects for nested documents.

Arrays are enclosed in square brackets, and nested documents use curly braces.

5fill in blank

hard

Fill all three blanks to define a MongoDB document with a nested document, an array, and a numeric field.

MongoDB

document = {"user": [1], "roles": [2], "score": [3]

Drag options to blanks, or click blank then click option'

A{"name": "Eve", "email": "[e-mail]"}

B["admin", "editor"]

C95

D"95"

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings instead of objects or arrays.

Storing numbers as strings.

The user field is a nested document, roles is an array, and score is a number.