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The JobTracker pushes work out to available _______ nodes in the cluster, striving to keep the work as close to the data as possible.

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The JobTracker pushes work out to available _______ nodes in the cluster, striving to keep the work as close to the data as possible.

(a) DataNodes

(b) TaskTracker

(c) ActionNodes

(d) All of the mentioned

The question was asked in an interview for internship.

My doubt stems from Data Flow topic in division HDFS – Hadoop Distributed File System of Hadoop

1 Answer

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Best answer
Right choice is (b) TaskTracker

Best explanation: A heartbeat is sent from the TaskTracker to the JobTracker every few minutes to check its status whether the node is dead or alive.

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