You have a data lake with folders: /data/raw/, /data/processed/, and /data/curated/. You accidentally saved uncleaned data in /data/curated/. What is the best fix?

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Hadoop - Modern Data Architecture with Hadoop

You have a data lake with folders: /data/raw/, /data/processed/, and /data/curated/. You accidentally saved uncleaned data in /data/curated/. What is the best fix?

AMove the uncleaned data to <code>/data/raw/</code> and reprocess it

BLeave the data as is in <code>/data/curated/</code>

CDelete the <code>/data/raw/</code> folder

DRename <code>/data/curated/</code> to <code>/data/raw/</code>

Step-by-Step Solution

Solution:

Step 1: Identify the problem with data placement
Uncleaned data should not be in the curated zone, which is for clean, ready data.
Step 2: Choose the correct fix
Moving uncleaned data back to raw zone and reprocessing it ensures proper data flow and quality.
Final Answer:
Move the uncleaned data to /data/raw/ and reprocess it -> Option A
Quick Check:
Raw zone = uncleaned data fix = B [OK]

Quick Trick: Unclean data belongs in raw zone, not curated [OK]

Common Mistakes:

Ignoring data quality rules
Deleting unrelated folders
Renaming folders without moving data

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You have a data lake with folders: /data/raw/, /data/processed/, and /data/curated/. You accidentally saved uncleaned data in /data/curated/. What is the best fix?

Step 1: Identify the problem with data placement

Step 2: Choose the correct fix

Final Answer:

Quick Check:

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