JSON for human-readable data in IOT Protocols - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a JSON object with a device name.

IOT Protocols

{
  "device": "[1]"
}

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

Astatus

Bdevice_name

Csensor_01

Dtemperature

Attempts:

3 left

💡 Hint

Common Mistakes

Using a key name instead of a value.

Choosing a value that is not a device name.

The key "device" should have a value representing the device name, such as "sensor_01".

2fill in blank

medium

Complete the JSON to include the temperature reading as a number.

IOT Protocols

{
  "temperature": [1]
}

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

A"25C"

B"twenty five"

Ctemperature

D25

Attempts:

3 left

💡 Hint

Common Mistakes

Putting numbers inside quotes, making them strings.

Using words instead of numbers.

The temperature value should be a number without quotes to represent numeric data in JSON.

3fill in blank

hard

Fix the error in this JSON snippet by completing the missing value for the status key.

IOT Protocols

{
  "status": [1]
}

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

Atrue

B"true"

CTrue

Dyes

Attempts:

3 left

💡 Hint

Common Mistakes

Using capitalized True which is Python style, not JSON.

Putting boolean values inside quotes.

In JSON, boolean values are lowercase true or false without quotes. "true" in quotes is a string, which is incorrect here.

4fill in blank

hard

Fill both blanks to create a JSON object with sensor ID and its reading.

IOT Protocols

{
  "sensor_id": "[1]",
  "reading": [2]
}

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

Asensor_123

B45.6

C"45.6"

Dsensor

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the reading value inside quotes.

Not quoting the sensor ID string.

The sensor ID should be a string, so it needs quotes. The reading is a number, so it should not have quotes.

5fill in blank

hard

Fill all three blanks to create a JSON object with device name, active status, and battery level.

IOT Protocols

{
  "device": "[1]",
  "active": [2],
  "battery": [3]
}

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

AsensorX

Btrue

C87

D"true"

Attempts:

3 left

💡 Hint

Common Mistakes

Using "true" as a string instead of boolean true.

Not quoting the device name string.

The device name is a string and needs quotes. The active status is a boolean true without quotes. The battery level is a number without quotes.