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Why does a GraphQL query request only specific fields instead of all data?

easy📝 Conceptual Q11 of 15
GraphQL - Queries
Why does a GraphQL query request only specific fields instead of all data?
ATo get only the data needed and avoid extra work
BBecause GraphQL cannot fetch all data at once
CTo make the query syntax simpler
DBecause databases only store partial data
Step-by-Step Solution
Solution:

  1. Step 1: Understand GraphQL query purpose

    GraphQL lets you ask for exactly the data you want, no more.

  2. Step 2: Reason about efficiency

    Requesting only needed fields saves time and resources by avoiding extra data transfer.

  3. Final Answer:

    To get only the data needed and avoid extra work -> Option A

  4. Quick Check:

    Specific data request = Efficiency [OK]
Quick Trick: Remember: ask only what you need to save resources [OK]
Common Mistakes:
  • Thinking GraphQL cannot fetch all data
  • Believing syntax is simpler by requesting all fields
  • Assuming databases store only partial data

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