NameNode and DataNode do communicate using
A)active pulse
B)heartbeats
C)h-signal
D)data pulse

Name: NameNode and DataNode do communicate using A)active pulse B)heartbeats C)h-signal D)data pulse
Brand: Quizplus
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Question

Quizplus · Accepted Answer

NameNode and DataNode communicate using heartbeats. A heartbeat is a signal used by Hadoop to check the status of DataNodes. If a DataNode fails to send a heartbeat within a certain period of time, it is considered to be dead or out of service, and its tasks are reassigned to other DataNodes.

NameNode and DataNode Do Communicate Using