EMC Proven Professional – RecoverPoint Specialist — Question 11

A four-node Isilon cluster is being used in a Hadoop workflow with a parity protection of N+2:1. The HDFS protocol has been enabled and is being used to access data.
How many additional copies of data are written into the Isilon cluster using HDFS?

Answer options

• A. None
• B. One
• C. Three
• D. Two

Correct answer: A

Explanation

The correct answer is A, as HDFS does not create additional copies of data when using the Isilon cluster in this configuration. The N+2:1 parity protection already ensures data redundancy without needing to write extra copies. Options B, C, and D do not apply because HDFS maintains data integrity through its own mechanisms, rather than duplicating data unnecessarily.