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What happens if you design a DynamoDB table without considering access patterns?

easy🧠 Conceptual Q2 of 15
DynamoDB - Access Patterns and Query Optimization
What happens if you design a DynamoDB table without considering access patterns?
AThe table will prevent data duplication
BQueries may be slow and expensive
CData will automatically be indexed for all queries
DYou can use SQL joins easily
Step-by-Step Solution
Solution:

  1. Step 1: Recognize the role of access patterns

    Access patterns guide how data is stored for efficient retrieval.

  2. Step 2: Consequences of ignoring access patterns

    Without them, queries may scan large data, causing slow and costly operations.

  3. Final Answer:

    Queries may be slow and expensive -> Option B

  4. Quick Check:

    No access pattern = Slow queries [OK]
Quick Trick: Bad design causes slow, costly queries [OK]
Common Mistakes:
MISTAKES
  • Assuming DynamoDB auto-optimizes all queries
  • Thinking joins are supported natively
  • Believing indexes fix all performance issues

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