MC	Which statement is NOT CORRECT?	Variety in Big Data refers to data "in many forms".	incorrect	Velocity in Big Data refers to data "in movement".	incorrect	Veracity in Big Data refers to data "in change".	correct	Volume in Big Data refers to data "at rest".	incorrect	
MC	Which statement is CORRECT?	One of the disadvantages of Spark is that it does not support streaming data.	incorrect	One of the disadvantages of Spark is that it has no way to deal with graph based data.	incorrect	One of the disadvantages of Spark is that its streaming API does not allow to join multiple streams.	incorrect	One of the disadvantages of Spark is that its streaming and machine learning APIs are still mostly RDD based.	correct	
MC	Which of the following commands are not a part of HBase?	Get	incorrect	Place	correct	Describe	incorrect	Put	incorrect	
MC	Which statement is NOT CORRECT?	The YARN ApplicationMaster contains a scheduler which will hold submitted jobs in a queue until they are deemed ready to start.	correct	NodeManagers in YARN are responsible for setting up containers on the node hosting a particular (sub)task.	incorrect	YARN's JobHistoryServer keeps a log of all finished jobs.	incorrect	Apart from handling MapReduce programs, YARN can also be used to manage other types of applications.	incorrect	
MC	Which of the following schema handling methods does Hive apply?	Schema on read	correct	Schema on query	incorrect	Schema on load	incorrect	Schema on write	incorrect	
MC	Pig is...	A SQL engine which runs on top of Hadoop.	incorrect	A programming language that can be used to query HDFS data.	incorrect	A project offering a programming language to provide more user-friendliness compared to MapReduce programs.	correct	A database which runs on Hadoop.	incorrect	
MC	What do the 5 V's of Big Data stand for?	Volume, Versatile, Velocity, Visualization, Value.	incorrect	Volume, Variety, Velocity, Variability, Value.	incorrect	Volume, Variety, Velocity, Veracity, Value.	correct	Volume, Visualization, Velocity, Variety, Value.	incorrect	
MC	Which statement is NOT CORRECT?	RDDs represent an abstract, immutable data structure.	incorrect	RDDs offer failure protection by tracking the lineage of operations that are applied on them.	incorrect	RDDs allow for two forms of operations: transformations and actions.	incorrect	RDDs are structured and represent a collection of columnar objects.	correct	
MC	Which statement is CORRECT?	MapReduce programs cannot be used with HBase. Data is accessed using simple put and get commands instead.	incorrect	HBase can be considered as a NoSQL database.	correct	HBase offers a SQL engine to query its data.	incorrect	HBase works well on large clusters as well as small ones having a few nodes.	incorrect	
MC	Which statement is CORRECT?	HBase offers a SQL engine to query its data.	incorrect	Hive's main advantage lies within the query speed and performance. 	incorrect	Hive applies a 'schema on query' approach.	incorrect	YARN's JobHistoryServer keeps a log of all finished jobs.	correct