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Hadoop

Level:-Basic
Q(1) EMR stands for _______.
A   Estimated MapReduce
B   Elastic MapReduce
C   Emergency MapReduce
D   None of the above
Q(2) HDFS works in a _______ fashion.
A   worker/slave
B   master-slave
C   master-worker
D   All of the above
Level:-Intermediate
Q(1) Map output is larger than _______ percent of the memory allocated to copying map.
A   10
B   15
C   25
D   35
Q(2) _______ storage is a solution to decouple growing storage capacity.
A   DataNode
B   Archival
C   Policy
D   All of the above
Level:-Expert
Q(1) Which of the following is a configuration management system?
A   Alex
B   Acem
C   Puppet
D   AAD
Q(2) Which of the following operator is used to view the map reduce execution plans?
A   DUMP
B   DESCRIBE
C   STORE
D   EXPLAIN