Explanation:Map-Reduce jobs are submitted on job-tracker. 4. 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
Answer:A
Explanation:Map-Reduce jobs are submitted on job-tracker. 4. 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
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. 5. Point out the wrong statement :