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 command lists the blocks that make up each file in the filesystem.
A - hdfs fsck / -files -blocks
B - hdfs fsck / -blocks -files
Answer : A
Q 2 - As part of the HDFS high availability a pair of primary namenodes are configured. What is true for them?
A - When a client request comes, one of them chosen at random serves the request.
B - One of them is active while the other one remains powered off.
C - Datanodes send block reports to only one of the namenodes.
D - The standby node takes periodic checkpoints of active namenode’s namespace.
Answer : D
Q 3 - The property used to set the default filesystem for Hadoop in core-site.xml is-
Answer : B
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 command “hadoop fs -test -z URI “ gives the result 0 if
Answer : D
Q 7 - The current limiting factor to the size of a hadoop cluster is
A - Excess heat generated in data center
B - Upper limit of the network bandwidth
Answer : C
Q 8 - Which of the following is not a scheduling option available in YARN
Answer : A
Q 9 - Which one of the following nodes manages other nodes?
Answer : A
Q 10 - Which of the following components retrieves the input splits directly from HDFS to determine the number of map tasks?
