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 - In the local disk of the namenode the files which are stored persistently are −
A - namespace image and edit log
B - block locations and namespace image
Answer : A
Answer : C
Q 4 - The file in Namenode which stores the information mapping the data block location with file name is −
Answer : C
Q 5 - The Zookeeper
A - Detects the failure of the namenode and elects a new namenode.
B - Detects the failure of datanodes and elects a new datanode.
C - Prevents the hardware from overheating by shutting them down.
D - Maintains a list of all the components IP address of the Hadoop cluster.
Answer : A
Q 6 - YARN stands for
A - Yahoo’s another resource name
B - Yet another resource negotiator
Answer : B
Q 7 - All the files in a directory in HDFS can be merged together using
Answer : A
Answer : A
Q 9 - What is writable?
A - Writable is a java interface that needs to be implemented for streaming data to remote servers.
B - Writable is a java interface that needs to be implemented for HDFS writes.
C - Writable is a java interface that needs to be implemented for MapReduce processing.
Answer : C
Q 10 -What is a Sequence File?
