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 - HDFS block size is larger as compared to the size of the disk blocks so that
Q 2 - When a client communicates with the HDFS file system, it needs to communicate with
Q 3 - For a HDFS directory the replication factor(RF) is
Q 4 - Which of the below property gets configured on mapred-site.xml ?
Q 5 - The namenode knows that the datanode is active using a mechanism known as
Q 6 - The command “hadoop fs -test -z URI “ gives the result 0 if
Q 8 - In a HDFS system with block size 64MB we store a file which is less than 64MB. Which of the following is true?
Q 9 - When using HDFS, what occurs when a file is deleted from the command line?
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.