Hadoop Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to Hadoop Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 5 - The namenode knows that the datanode is active using a mechanism known as

A - heartbeats

B - datapulse

C - h-signal

D - Active-pulse

Answer : A

Answer : D

Q 8 - You can reserve the amount of disk usage in a data node by configuring the dfs.datanode.du.reserved in which of the following file

A - Hdfs-site.xml

B - Hdfs-defaukt.xml

C - Core-site.xml

D - Mapred-site.xml

Answer : A

Q 10 - The org.apache.hadoop.io.Writable interface declares which two methods? (Choose 2 answers.)

  1. public void readFields(DataInput).

  2. public void read(DataInput).

  3. public void writeFields(DataOutput).

  4. public void write(DataOutput).

A - 1 & 4

B - 2 & 3

C - 3 & 4

D - 2 & 4

Answer : A


hadoop_questions_answers.htm

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