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Which compatibility rule requires that both old and new schemas can read each other's data?

easy🧠 Conceptual Q2 of Q15
Kafka - Schema Registry
Which compatibility rule requires that both old and new schemas can read each other's data?
AFORWARD compatibility
BFULL compatibility
CBACKWARD compatibility
DNONE compatibility
Step-by-Step Solution
Solution:
  1. Step 1: Recall FULL compatibility definition

    FULL compatibility means both backward and forward compatibility are satisfied.
  2. Step 2: Identify the option matching this

    FULL compatibility states FULL compatibility, which means both old and new schemas can read each other's data.
  3. Final Answer:

    FULL compatibility -> Option B
  4. Quick Check:

    FULL compatibility = Both old and new schemas read each other's data [OK]
Quick Trick: FULL compatibility means backward + forward compatibility combined [OK]
Common Mistakes:
MISTAKES
  • Confusing FULL with BACKWARD or FORWARD
  • Thinking NONE compatibility allows any schema
  • Assuming BACKWARD means both directions

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