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Why is it important to decode the Pub/Sub message data from base64 in Cloud Functions?

hard📝 Conceptual Q10 of 15
GCP - Cloud Pub/Sub

Why is it important to decode the Pub/Sub message data from base64 in Cloud Functions?

ABecause Pub/Sub encodes message data in base64 to safely transmit binary data as text.
BBecause Cloud Functions only accept base64 encoded data as input.
CBecause decoding base64 encrypts the message for security.
DBecause base64 decoding compresses the message to save bandwidth.
Step-by-Step Solution
Solution:

  1. Step 1: Understand Pub/Sub message encoding

    Pub/Sub encodes message data in base64 to safely send binary or text data over the network.

  2. Step 2: Purpose of decoding in Cloud Functions

    Decoding base64 restores the original message content for processing.

  3. Final Answer:

    Base64 encoding ensures safe transmission; decoding recovers original data. -> Option A

  4. Quick Check:

    Base64 encodes data for safe transport [OK]
Quick Trick: Decode base64 to get original message content [OK]
Common Mistakes:
  • Thinking decoding encrypts or compresses data
  • Assuming Cloud Functions require base64 input
  • Ignoring base64 encoding purpose

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