Recall & Review
beginner
What is the main goal of Lambda architecture?
To process large amounts of data by combining batch processing for accuracy and streaming processing for low latency.
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beginner
Name the three layers of Lambda architecture.
Batch layer, speed (streaming) layer, and serving layer.
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beginner
What does the batch layer do in Lambda architecture?
It stores all the raw data and computes batch views to provide accurate and comprehensive results.
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beginner
Why is the speed layer important in Lambda architecture?
It processes data in real-time to provide quick updates and low-latency views, complementing the batch layer.
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intermediate
How does the serving layer function in Lambda architecture?
It merges batch views and real-time views to answer queries with both accuracy and freshness.
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Which layer in Lambda architecture handles real-time data processing?
✗ Incorrect
The speed layer processes data in real-time to provide low-latency results.
What is the main responsibility of the batch layer?
✗ Incorrect
The batch layer stores all raw data and computes batch views for accurate results.
In Lambda architecture, which layer combines batch and real-time views?
✗ Incorrect
The serving layer merges batch and speed layer outputs to answer queries.
Why do we need both batch and speed layers in Lambda architecture?
✗ Incorrect
Batch layer ensures accuracy, speed layer ensures low latency.
Which technology is commonly used for batch processing in Lambda architecture?
✗ Incorrect
Hadoop is widely used for batch processing in Lambda architecture.
Explain the roles of the batch, speed, and serving layers in Lambda architecture.
Think about accuracy, speed, and how results are combined.
You got /3 concepts.
Describe why Lambda architecture uses both batch and streaming processing instead of just one.
Consider the trade-off between speed and accuracy.
You got /3 concepts.