The namenode knows that the data node is active using a mechanism known as January 1, 2022January 1, 2022 administrator The namenode knows that the data node is active using a mechanism known asheartbeatsWell Done. Your Answer is Correct Keep it Up!h-signaldata pulseactive pulse Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Like this:Like Loading...Related Posts:Which of these values would be matched using the…When using the POST method, variables are displayed…Physical partitioning can be done using:Applications communicate with kernel by using:Using which command you find resource limits to the session?Which fungus is known as 'Green Mold' ?