Hadoop - Security
If a file is stored inside an HDFS encryption zone, what happens when a user without the key tries to read it?
If a file is stored inside an HDFS encryption zone, what happens when a user without the key tries to read it?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand encryption zone access control
Files in encryption zones require the correct key to decrypt data on read.Step 2: Effect of missing key on read operation
If the user lacks the key, the read operation will fail as data cannot be decrypted.Final Answer:
The read operation fails due to lack of decryption key -> Option BQuick Check:
Missing key means read fails [OK]
Quick Trick: Without key, encrypted files cannot be read [OK]
Common Mistakes:
- Assuming files are readable without keys
- Thinking DataNode decrypts automatically for all
- Believing files are copied unencrypted
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