You want to enforce wire encryption only for sensitive data transfers in Hadoop. Which approach is best?

hard📝 Application Q8 of 15

Hadoop - Security

AConfigure selective encryption by setting dfs.encrypt.data.transfer to true only on sensitive nodes

BEnable wire encryption cluster-wide and use firewall rules to restrict access

CUse application-level encryption on sensitive data before transfer

DDisable wire encryption and rely on VPN for network security

Step-by-Step Solution

Solution:

Step 1: Understand wire encryption scope
Wire encryption is typically enabled cluster-wide, not selectively per node.
Step 2: Consider selective encryption methods
Application-level encryption allows encrypting only sensitive data before sending.
Step 3: Evaluate other options
Firewall or VPN do not selectively encrypt data; selective node config is not standard.
Final Answer:
Use application-level encryption on sensitive data before transfer -> Option C
Quick Check:
Selective encryption best done at application level = A [OK]

Quick Trick: Selective encryption needs application-level control [OK]

Common Mistakes:

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