Which of the following best describes the map method input and output?
Which of the following best describes the map method input and output?
which of the following Hadoop computing daemons?
Your client application submits a MapReduce job to your Hadoop cluster. The Hadoop framework
looks for an available slot to schedule the MapReduce operations on which of the following
Hadoop computing daemons?
Which MapReduce daemon runs on each slave node and participates in job execution?
Which MapReduce daemon runs on each slave node and participates in job execution?
What is the standard configuration of slave nodes in a Hadoop cluster?
What is the standard configuration of slave nodes in a Hadoop cluster?
Which happens if the NameNode crashes?
Which happens if the NameNode crashes?
which node will Hadoop first attempt to run the Map task?
You are running a job that will process a single InputSplit on a cluster which has no other jobs
currently running. Each node has an equal number of open Map slots. On which node will Hadoop
first attempt to run the Map task?
How does the NameNode detect that a DataNode has failed?
How does the NameNode detect that a DataNode has failed?
The NameNode uses RAM for the following purpose:
The NameNode uses RAM for the following purpose:
What is a Writable?
What is a Writable?
Which of the following is true?
During the standard sort and shuffle phase of MapReduce, keys and values are passed to
reducers. Which of the following is true?