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 - What mechanisms Hadoop uses to make namenode resilient to failure.
A - Take backup of filesystem metadata to a local disk and a remote NFS mount.
B - Store the filesystem metadata in cloud.
Answer : A
Q 3 - HDFS can be accessed over HTTP using
Answer : B
Q 4 - The file in Namenode which stores the information mapping the data block location with file name is −
Answer : C
Q 5 - In Hadoop, Snappy and LZO are examples of
A - Mechanisms of file transport between data nodes
B - Mechanisms of data compression
Answer : B
Q 6 - The fully distributed mode of installation(without virtualization) needs a minimum of
Answer : A
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 technology is used to serialize the data in Hadoop?
Answer : B
Q 9 - Which one of the following is not true regarding to Hadoop?
A - It is a distributed framework.
B - The main algorithm used in it is Map Reduce
Answer : D
Q 10 - Keys from the output of shuffle and sort implement which of the following interface?