__________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer.

__________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer.
OutputCollector
Excellent ! Your Answer is Correct. Explanation: Hadoop MapReduce comes bundled with a library of generally useful mappers, reducers, and partitioners.
Partitioner
Reporter
All Options are Correct

Which of the tab shows all the role instances that have been instantiated for this service?

Which of the tab shows all the role instances that have been instantiated for this service?
Instance
Excellent ! Your Answer is Correct. Explanation: The Instances page displays the results of the configuration validation checks it performs for all the role instances for this service.
Status
Service
All Options are Correct

__________ Manager’s Service feature monitors dozens of service health and performance metrics about the services and role instances running on your cluster.

__________ Manager’s Service feature monitors dozens of service health and performance metrics about the services and role instances running on your cluster.
Cloudera
Excellent ! Your Answer is Correct. Explanation: Manager’s Service feature presents health and performance data in a variety of formats.
Microsoft
Amazon
None of the Option is Correct

___________ mode allows you to suppress alerts for a host, service, role, or even the entire cluster.

___________ mode allows you to suppress alerts for a host, service, role, or even the entire cluster.
Maintenance
Excellent ! Your Answer is Correct. Explanation: Maintenance mode can be useful when you need to take actions in your cluster and do not want to see the alerts that will be generated due to those actions.
Safe
Secure
All Options are Correct

Which of the following is a common hadoop maintenance issue?

Which of the following is a common hadoop maintenance issue?
Lack of configuration management
Excellent ! Your Answer is Correct. Explanation: Without a centralized configuration management framework, you end up with a number of issues that can cascade just as your usage picks up.
Lack of tools
Lack of web interface
None of the Option is Correct
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