Hadoop Online Quiz
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.
Q 1 - Which utility is used for checking the health of a HDFS file system?
Answer : B
Q 2 - The datanode and namenode are respectiviley
Answer : B
Q 3 - The following is not permitted on HDFS files
Answer : D
Q 4 - The command to check if Hadoop is up and running is −
Answer : B
Q 5 - The nature of hardware for the namenode should be
Answer : A
Q 6 - The source of HDFS architecture in Hadoop originated as
A - Google distributed filesystem
B - Yahoo distributed filesystem
Answer : A
Q 7 - hadoop fs –expunge
A - Gives the list of datanodes
Answer : D
Q 8 - The namenode loses its only copy of fsimage file. We can recover this from
Answer : C
Q 9 - Which of the following technologies is a document store database?
Answer : D
Q 10 - When writing data to HDFS what is true if the replication factor is three? (Choose 2 answers)
Data is written to DataNodes on three separate racks (if Rack Aware).
The Data is stored on each DataNode with a separate file which contains a checksum value.
Data is written to blocks on three different DataNodes.
The Client is returned with a success upon the successful writing of the first block and checksum check.
