Hadoop clusters running on Amazon EMR use ______ instances as virtual Linux servers for the master and slave nodes.
(a) EC2
(b) EC3
(c) EC4
(d) None of the mentioned
I had been asked this question in an internship interview.
The question is from Amazon Elastic MapReduce in section Oozie, Orchestration, Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications of Hadoop