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 - Data locality feature in Hadoop means
A - store the same data across multiple nodes.
B - relocate the data from one node to another.
Answer : C
Q 2 - User applications can instruct the namenode to cache the files by
A - adding cache file names to cache pool
B - adding cache config to cache pool
Answer : C
Answer : C
Q 4 - Which of the below property gets configured on hadoop-env.sh?
B - Directory names to store hdfs files
Answer : D
Q 5 - If the IP address or hostname of a datanode changes
A - The namenode updates the mapping between file name and block name
B - The namenode need not update mapping between file name and block name
Answer : B
Q 6 - When a file in HDFS is deleted by a user
B - It goes to trash if configured.
C - It becomes hidden from the user but stays in the file system
Answer : B
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 - A running job in hadoop can
B - Can never be killed with a command
Answer : A
Q 9 - What is AVRO?
A - Avro is a java serialization library.
B - Avro is a java compression library.
Answer : A
Q 10 - Which one of the following is not a main component of HBase?