Payload size optimization techniques in IOT Protocols - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to compress the payload using a common algorithm.

IOT Protocols

compressed_payload = zlib.[1](original_payload)

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Adecode

Bdecompress

Cencode

Dcompress

Attempts:

3 left

💡 Hint

Common Mistakes

Using decompress instead of compress

Using encode which does not compress data

The compress function reduces the payload size by encoding it efficiently.

2fill in blank

medium

Complete the code to encode the payload in a compact binary format.

IOT Protocols

encoded_payload = cbor2.[1](data)

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Adecode

Bdumps

Cloads

Dencode

Attempts:

3 left

💡 Hint

Common Mistakes

Using decode or loads which are for reading data

Using encode which is not a CBOR function

The dumps function converts data into CBOR binary format, which is compact.

3fill in blank

hard

Fix the error in the code to correctly remove unnecessary fields from the payload dictionary.

IOT Protocols

optimized_payload = {k: v for k, v in payload.items() if k != [1]

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A"timestamp"

Btimestamp

C'timestamp'

Dtime

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted timestamp causing NameError

Using wrong key name like time

The key must be a string literal, so it needs quotes like 'timestamp'.

4fill in blank

hard

Fill both blanks to create a dictionary with keys as sensor IDs in uppercase and values filtered by threshold.

IOT Protocols

filtered_data = {sensor[1]: value for sensor, value in data.items() if value [2] threshold}

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A.upper()

B>

C<

D.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using .lower() instead of .upper()

Using < instead of > for filtering

Use .upper() to convert keys to uppercase and > to filter values above threshold.

5fill in blank

hard

Fill all three blanks to build a dictionary comprehension that includes only keys starting with 'temp' and values less than max_val.

IOT Protocols

result = {k[1]: v for k, v in readings.items() if k.[2]('temp') and v [3] max_val}

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

A.upper()

Bstartswith

C<

D.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using .upper() instead of .lower()

Using wrong comparison operators

Not using startswith method

Convert keys to lowercase with .lower(), check if they startswith 'temp', and filter values less than max_val.