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 1 - Which utility is used for checking the health of a HDFS file system?

A - fchk

B - fsck

C - fsch

D - fcks

Answer : B

Q 2 - When a client communicates with the HDFS file system, it needs to communicate with

A - only the namenode

B - only the data node

C - both the namenode and datanode

D - None of these

Answer : C

Q 3 - The following is not permitted on HDFS files

A - Deleting

B - Renaming

C - Moving

D - Executing.

Answer : D

Answer : A

Q 7 - The archive file created in Hadoop always has the extension of

A - .hrc

B - .har

C - .hrh

D - .hrar

Answer : B

Q 8 - Which technology is used to store data in Hadoop?

A - HBase

B - Avro

C - Sqoop

D - Zookeeper

Answer : A

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 - When writing data to HDFS what is true if the replication factor is three? (Choose 2 answers)

  1. Data is written to DataNodes on three separate racks (if Rack Aware).

  2. The Data is stored on each DataNode with a separate file which contains a checksum value.

  3. Data is written to blocks on three different DataNodes.

  4. The Client is returned with a success upon the successful writing of the first block and checksum check.

A - 1 & 3

B - 2 & 3

C - 3 & 4

D - 1 & 4

Answer : C


hadoop_questions_answers.htm

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