MC	Which statement is NOT CORRECT?	Hive queries run much faster than hand-written MapReduce programs.	correct	Hive's query language is not as feature complete as the full SQL standard.	incorrect	Hive offers a JDBC interface.	incorrect	Hive offers an SQL engine to query Hadoop data.	incorrect	
MC	Which statement is CORRECT?	A traditional RDBMS applies a 'schema on read' approach.	incorrect	A company with a large volume of data should always implement a Big Data set-up, rather than a RDBMS.	incorrect	Apache Spark is fault tolerant and efficient. 	correct	Hive does not support full ACID transaction management. 	incorrect	
MC	Which statement is NOT CORRECT?	Hive queries run much faster than hand-written MapReduce programs.	correct	Hive offers a JDBC interface.	incorrect	Hive offers an SQL engine to query Hadoop data.	incorrect	Hive's query language is not as feature complete as the full SQL standard.	incorrect	
MC	Which statement is NOT CORRECT?	RDDs allow for two forms of operations: transformations and actions.	incorrect	RDDs offer failure protection by tracking the lineage of operations that are applied on them.	incorrect	RDDs are structured and represent a collection of columnar objects.	correct	RDDs represent an abstract, immutable data structure.	incorrect	
MC	Which statement is NOT CORRECT?	Veracity in Big Data refers to data "in change".	correct	Variety in Big Data refers to data "in many forms".	incorrect	Velocity in Big Data refers to data "in movement".	incorrect	Volume in Big Data refers to data "at rest".	incorrect	
MC	Which statement is NOT CORRECT?	A reducer in Hadoop reduces a collection of elements to one or more output elements.	incorrect	Reducer workers in Hadoop will start once all mapper workers have fished.	correct	A mapper in Hadoop maps each element in a collection to one or more output elements.	incorrect	A MapReduce pipeline in Hadoop can include an optional Sorter to sort the final output.	incorrect	
MC	Which statement is NOT 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	The YARN ApplicationMaster contains a scheduler which will hold submitted jobs in a queue until they are deemed ready to start.	correct	Apart from handling MapReduce programs, YARN can also be used to manage other types of applications.	incorrect	
MC	Which statement is CORRECT?	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	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 it does not support streaming data.	incorrect	
MC	Which statement is CORRECT?	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 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 and machine learning APIs are still mostly RDD based.	correct	
MC	Which statement is CORRECT?	HBase works well on large clusters as well as small ones having a few nodes.	incorrect	HBase offers a SQL engine to query its data.	incorrect	HBase can be considered as a NoSQL database.	correct	MapReduce programs cannot be used with HBase. Data is accessed using simple put and get commands instead.	incorrect