Briefing Cloudera Knowledge

Which YARN daemon or service negotiates map and reduce Containers from the Scheduler, tracking their

Which YARN daemon or service negotiates map and reduce Containers from the Scheduler,
tracking their status and monitoring for progress?

A.
ResourceManager

B.
ApplicationMaster

C.
NodeManager

D.
ApplicationManager

Explanation:
http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.1-latest/bk_using-apachehadoop/content/yarn_overview.html