What does HDFS encryption at rest primarily protect?

easy📝 Conceptual Q1 of 15

Hadoop - Security

AData during transmission over the network

BData stored on disk from unauthorized access

CUser authentication credentials

DData processing speed in Hadoop jobs

Step-by-Step Solution

Solution:

Step 1: Understand encryption at rest meaning
Encryption at rest means protecting data when it is stored, not when it moves.
Step 2: Identify what HDFS encryption at rest secures
It secures data saved on disks from unauthorized reading or theft.
Final Answer:
Data stored on disk from unauthorized access -> Option B
Quick Check:
Encryption at rest = Protect stored data [OK]

Quick Trick: Encryption at rest means data is safe on disk [OK]

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