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 - The concept using multiple machines to process data stored in distributed system is not new.
The High-performance computing (HPC) uses many computing machines to process large volume of data stored in a storage area network (SAN). As compared to HPC, Hadoop
A - Can process a larger volume of data.
B - Can run on a larger number of machines than HPC cluster.
C - Can process data faster under the same network bandwidth as compared to HPC.
Answer : C
Q 2 - When a client communicates with the HDFS file system, it needs to communicate with
Answer : C
Q 3 - What is are true about HDFS?
A - HDFS filesystem can be mounted on a local clients Filesystem using NFS.
B - HDFS filesystem can never be mounted on a local clients Filesystem.
C - You can edit a existing record in HDFS file which is already mounted using NFS.
D - You cannot append to a HDFS file which is mounted using NFS.
Answer : A
Q 4 - Which of the below property gets configured on hdfs-site.xml ?
B - Directory names to store hdfs files.
Answer : A
Q 5 - The output of a mapper task is
A - The Key-value pair of all the records of the dataset.
B - The Key-value pair of all the records from the input split processed by the mapper
Answer : B
Q 6 - The type of data Hadoop can deal with is
Answer : D
Q 7 - The decommission feature in hadoop is used for
A - Decommissioning the namenode
B - Decommissioning the data nodes
Answer : B
Q 8 - What is the default input format?
B - There is no default input format. The input format always should be specified.
Answer : D
Q 9 - Which technology is used to import and export data in Hadoop?
Answer : C
Q 10 - Which one of the following is not a main component of HBase?