[Solved] A user attempts to create an encryption zone with the command:hdfs dfsadmin -createEncryptionZone -keyName missingKey -path /dataZoneand receives an error:... What is the most probable reason? | Hadoop

Hadoop - Security

A user attempts to create an encryption zone with the command:
hdfs dfsadmin -createEncryptionZone -keyName missingKey -path /dataZone
and receives an error: 'Key not found'. What is the most probable reason?

AThe encryption key 'missingKey' does not exist in the KMS

BThe path /dataZone is not empty

CThe user lacks permission to create encryption zones

DThe HDFS service is not running

Step-by-Step Solution

Solution:

Step 1: Understand error message
'Key not found' indicates the specified key is missing in the Key Management Server (KMS).
Step 2: Check key existence
Before creating an encryption zone, the key must exist; otherwise, the command fails.
Final Answer:
The encryption key 'missingKey' does not exist in the KMS -> Option A
Quick Check:
Missing key causes encryption zone creation failure [OK]

Quick Trick: Encryption key must exist before creating zone [OK]

Common Mistakes:

Assuming path emptiness causes 'Key not found' error
Ignoring key creation step before zone creation
Blaming permissions without checking key presence

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More Hadoop Quizzes

A user attempts to create an encryption zone with the command:

Step 1: Understand error message

Step 2: Check key existence

Final Answer:

Quick Check:

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