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

Answer : C

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

Q 6 - When a backup node is used in a cluster there is no need of

A - Check point node

B - Secondary name node

C - Secondary data node

D - Rack awareness

Answer : A

Q 8 - The namenode loses its only copy of fsimage file. We can recover this from

A - Datanodes

B - Secondary namenode

C - Checkpoint node

D - Never

Answer : C

Q 9 - Which one of the following nodes manages other nodes?

A - Name node

B - Data node

C - slave node

D - None of these

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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