You want to configure Hadoop to use Kerberos authentication for HDFS. Which two configurations must be set in core-site.xml and hdfs-site.xml respectively?

hard📝 Application Q8 of 15

Hadoop - Security

Acore-site.xml: hadoop.security.authorization=false; hdfs-site.xml: dfs.web.authentication.kerberos=false

Bcore-site.xml: dfs.replication=3; hdfs-site.xml: dfs.permissions.enabled=true

Ccore-site.xml: hadoop.security.authentication=kerberos; hdfs-site.xml: dfs.namenode.kerberos.principal

Dcore-site.xml: fs.defaultFS=hdfs://localhost:9000; hdfs-site.xml: dfs.blocksize=128MB

Step-by-Step Solution

Solution:

Step 1: Identify core-site.xml setting for Kerberos
Set 'hadoop.security.authentication' to 'kerberos' to enable Kerberos authentication.
Step 2: Identify hdfs-site.xml setting for Kerberos principal
Set 'dfs.namenode.kerberos.principal' to specify the NameNode's Kerberos principal.
Final Answer:
core-site.xml: hadoop.security.authentication=kerberos; hdfs-site.xml: dfs.namenode.kerberos.principal -> Option C
Quick Check:
Enable Kerberos in core-site and set principal in hdfs-site [OK]

Quick Trick: Set authentication in core-site and principal in hdfs-site [OK]

Common Mistakes:

Confusing replication with authentication
Disabling security settings

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You want to configure Hadoop to use Kerberos authentication for HDFS. Which two configurations must be set in core-site.xml and hdfs-site.xml respectively?

Step 1: Identify core-site.xml setting for Kerberos

Step 2: Identify hdfs-site.xml setting for Kerberos principal

Final Answer:

Quick Check:

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