JSON payload formatting in IOT Protocols - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a JSON payload with a temperature reading.

IOT Protocols

{ "temperature": [1] }

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

Atemperature

B"22.5"

C'22.5'

D22.5

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the number inside quotes makes it a string, not a number.

Using single quotes is invalid in JSON.

The temperature value should be a number without quotes in JSON.

2fill in blank

medium

Complete the code to add a humidity field with value 60 in the JSON payload.

IOT Protocols

{ "humidity": [1] }

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

A60

B"60"

C'60'

Dhumidity

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around numbers.

Using single quotes instead of double quotes.

Humidity is a numeric value and should be written without quotes in JSON.

3fill in blank

hard

Fix the error in the JSON payload by completing the missing value for the "device" field.

IOT Protocols

{ "device": [1] }

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

Adevice123

B'device123'

C"device123"

Ddevice

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around string values.

Using single quotes instead of double quotes.

String values in JSON must be enclosed in double quotes.

4fill in blank

hard

Fill both blanks to create a JSON payload with a sensor ID and its status.

IOT Protocols

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

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

A"sensor007"

Btrue

C"active"

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using boolean true/false as strings with quotes.

Not quoting string values.

The sensor ID is a string and needs double quotes. The status is also a string and requires double quotes.

5fill in blank

hard

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

IOT Protocols

{ "device_name": [1], "battery": [2], "charging": [3] }

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

A"sensorX"

B85

Cfalse

Dtrue

Attempts:

3 left

💡 Hint

Common Mistakes

Putting numbers or booleans inside quotes.

Using uppercase True/False instead of lowercase true/false.

Device name is a string and needs quotes. Battery is a number without quotes. Charging is a boolean without quotes.