MapReduce jobs can be written in which language?

To perform local aggregation of the intermediate outputs, MapReduce users can optionally specify which object?

To verify job status, look for the value ___ in the ___.

Which line of code implements a Reducer method in MapReduce 2.0?

To get the total number of mapped input records in a map job task, you should review the value of which counter?

Hadoop Core supports which CAP capabilities?

Which of the following HDFS shell commands is used for setting a group for a particular file or directory?

While configuring HTTP authentication in Hadoop, which of the following is set as the value of the 'hadoop.http.filter.initializers' property?

What is the default value of the following security configuration property of the YARN architecture? yarn.timeline-service.delegation.token.renew-interval

In case of service-level authorization in Hadoop, which of the following properties is used for determining the ACEs used for granting permissions for the DataNodes to communicate and access the NameNode?

Which one is the correct syntax for the docs Maven profile that is used for creating documentation in Hadoop Auth?