Which of the following best describes the application layer of Hadoop?
a. It enables applications such as internally developed programming languages or purchased third-party business intelligence tools to interact with Hadoop.
b. It handles the scheduling and initiation of jobs and balances the required work among the various resources available.
c. It handles inevitable job failures and interruptions.
d. It is responsible for the storage of big data.
a.It enables applications such as internally developed programming languages or purchased third-party business intelligence tools to interact with Hadoop.
Hadoop, an open-source software framework, can be thought of as consisting of three layers—the application layer, the workload layer, and the Hadoop Distributed File System (HDFS). The application layer of Hadoop enables applications (internally developed using Java, Pig, or Hive programming languages or purchased third-party business intelligence tools) to interact with Hadoop.
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