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 of these provides a Stream processing system used in Hadoop ecosystem?
Answer : C
Q 2 - In Hadoop 2.x release HDFS federation means
A - Allowing namenodes to communicate with each other.
B - Allow a cluster to scale by adding more datanodes under one namenode.
C - Allow a cluster to scale by adding more namenodes.
D - Adding more physical memory to both namenode and datanode.
Answer : C
Q 3 - The current block location of HDFS where data is being written to,
A - is visible to the client requesting for it.
B - Block locations are never visible to client requests.
C - May or may not be visible to the reader.
D - becomes visible only after the buffered data is committed.
Answer : D
Q 5 - The role of a Journal node is to
A - Report the location of the blocks in a data node
B - Report the edit log information of the blocks in the data node.
C - Report the Schedules when the jobs are going to run
D - Report the activity of various components handled by resource manager
Answer : B
Q 6 - When a backup node is used in a cluster there is no need of
Answer : A
Q 7 - The data from a remote hadoop cluster can
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
Answer : A
Q 9 - Which of the following technologies is a document store database?
Answer : D
Q 10 - In order to apply a combiner, what is one property that has to be satisfied by the values emitted from the mapper?
