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In Lambda architecture, what is the primary role of the speed layer?

easy📝 Conceptual Q1 of 15
Hadoop - Modern Data Architecture with Hadoop
In Lambda architecture, what is the primary role of the speed layer?
AStore all historical data permanently
BProcess real-time data streams quickly
CPerform complex batch computations
DManage user authentication
Step-by-Step Solution
Solution:

  1. Step 1: Understand the speed layer function

    The speed layer is designed to handle data that arrives in real-time and provide quick updates.

  2. Step 2: Compare with other layers

    The batch layer handles large-scale historical data, not real-time processing.

  3. Final Answer:

    Process real-time data streams quickly -> Option B

  4. Quick Check:

    Speed layer = real-time processing [OK]
Quick Trick: Speed layer = real-time fast data processing [OK]
Common Mistakes:
  • Confusing speed layer with batch layer
  • Thinking speed layer stores all data
  • Assuming speed layer manages security

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