Custom programmer-defined counters in MapReduce are:
Custom programmer-defined counters in MapReduce are:
MapReduce is well-suited for all of the following applications EXCEPT?
MapReduce is well-suited for all of the following applications EXCEPT? (Choose one):
How many Mappers will run?
Your Custer’s HOFS block size is 64MB. You have a directory containing 100 plain text files, each
of which Is 100MB in size. The InputFormat for your job is TextInputFormat. How many Mappers
will run?
Does the MapReduce programming model provide a way for reducers to communicate with each other?
Does the MapReduce programming model provide a way for reducers to communicate with each
other?
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?