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You want to design a Lambda architecture system that handles sensor data arriving every second and also stores monthly summaries. Which layers should you use and why?

hard📝 Application Q8 of 15
Hadoop - Modern Data Architecture with Hadoop
You want to design a Lambda architecture system that handles sensor data arriving every second and also stores monthly summaries. Which layers should you use and why?
AUse speed layer for real-time sensor data and batch layer for monthly summaries
BUse batch layer for real-time data and speed layer for monthly summaries
CUse only batch layer for all data
DUse only speed layer for all data
Step-by-Step Solution
Solution:
  1. Step 1: Identify real-time data handling

    Sensor data every second requires fast processing, so speed layer fits.
  2. Step 2: Identify batch processing for summaries

    Monthly summaries need batch processing of large historical data.
  3. Final Answer:

    Use speed layer for real-time sensor data and batch layer for monthly summaries -> Option A
  4. Quick Check:

    Speed = real-time, Batch = summaries [OK]
Quick Trick: Speed for fast data, batch for big summaries [OK]
Common Mistakes:
  • Reversing layer roles
  • Using only one layer
  • Ignoring data frequency differences

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