Q. Which of the following parameter is to collect keys and combined values?

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Q. ________ is a programming model designed for processing large volumes of data in parallel by dividing the work into a set of independent tasks.

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Q. The daemons associated with the MapReduce phase are ________ and task-trackers.

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Q. The JobTracker pushes work out to available _______ nodes in the cluster, striving to keep the work as close to the data as possible.

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Q. InputFormat class calls the ________ function and computes splits for each file and then sends them to the jobtracker.

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Q. On a tasktracker, the map task passes the split to the createRecordReader() method on InputFormat to obtain a _________ for that split.

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Q. The default InputFormat is __________ which treats each value of input a new value and the associated key is byte offset.

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Q. __________ controls the partitioning of the keys of the intermediate map-outputs.

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Q. Output of the mapper is first written on the local disk for sorting and _________ process.

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Q. _________ is the name of the archive you would like to create.

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Q. Using Hadoop Archives in __________ is as easy as specifying a different input filesystem than the default file system.

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Q. The __________ guarantees that excess resources taken from a queue will be restored to it within N minutes of its need for them.

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Q. _________ is a pluggable Map/Reduce scheduler for Hadoop which provides a way to share large clusters.

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Q. Which of the following parameter describes destination directory which would contain the archive?

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Q. _________ identifies filesystem path names which work as usual with regular expressions.

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Q. __________ is the parent argument used to specify the relative path to which the files should be archived to

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Q. Which of the following is a valid syntax for hadoop archive?

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Q. Which hdfs command is used to check for various inconsistencies?

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Q. HDFS supports the ____________ command to fetch Delegation Token and store it in a file on the local system.

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Q. In ___________ mode, the NameNode will interactively prompt you at the command line about possible courses of action you can take to recover your data.

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