Big Data | Testing | Question and Answers

Big Data | Testing | Mock Test

All of the following accurately describe Hadoop EXCEPT?
a. Open-source
b. Real-time
c. Distributed computing
d. Batch processing

Answer : Real-time 
All of the following is a core component of Hadoop EXCEPT?
a. Hive
c. MapReduce
Answer : Hive 
Hadoop is a framework that uses a variety of related tools. Common tools included in a typical implementation include:
a. MapReduce, HDFS, Spool
b. MapReduce, MySQL, Google Apps
c. Cloudera, HortonWorks, MapR
d. MapReduce, Hive, Hbase
Answer : MapReduce, Hive, Hbase 
Which of the following can be used to create workflows when multiple MapReduce and Pig programs need to be executed?
a. Sqoop
b. Zookeeper
c. Oozie
d. Hbase
Answer : Oozie 
Which of the following can be used to transfer bulk data between Hadoop and structured databases
a. Sqoop
b. Hive
c. Pig
d. Spark
Answer : Sqoop 
How many single points of failure does a High Availability HDFS architecture have?
a. 0
b. 1
c. 2
d. 3
Answer : 0 
If a file of size 300MB needs to be stored in the HDFS (block size=64MB, replication factor=2), how many blocks are created for this file in the HDFS?
a. 10
b. 11
c. 12
d. 15
Answer : 10 
What is not a default value for a data block size in the HDFS?
a. 64MB
b. 128MB
c. 512MB
d. 256MB
Answer : 512MB 
Which of the following architectures best describes the HDFS architecture?
a. High Availability
b. Master-Slave
c. Connected
d. Peer
Answer : Master-Slave 
Which of the following is a master process in the HDFS architecture?
a. Datanode
b. JobTracker
c. Namenode
d. Secondary Namenode
Answer : Namenode 

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