230 + Mcqs in Hadoop McqOptions

1.	Drill also provides intuitive extensions to SQL to work with _______ data types.
A.	simple
B.	nested
C.	int
D.	all of the mentioned
Answer» C. int

Discussion

2.	Which of the following is a straightforward binary format?
A.	TCompactProtocol
B.	TDenseProtocol
C.	TBinaryProtocol
D.	TSimpleJSONProtocol
Answer» D. TSimpleJSONProtocol

Discussion

3.	A Flume agent is a JVMprocess which has?
A.	3 components
B.	4 components
C.	5 components
D.	6 components
Answer» B. 4 components

Discussion

4.	A float parameter, defaults to 0.0001f, which means we can deal with 1 error every __________ rows.
A.	1000
B.	10000
C.	1 million rows
D.	None of the mentioned
Answer» C. 1 million rows

Discussion

5.	Flume Hadoop can also be used to transport event data including but not limited to network traffic data, data generated by social media websites and email messages.
A.	True
B.	False
C.	May be True or False
D.	Can't Say
Answer» B. False

Discussion

6.	Which of the following Hive commands is not supported by HCatalog?
A.	ALTER INDEX … REBUILD
B.	CREATE VIEW
C.	SHOW FUNCTIONS
D.	DROP TABLE
Answer» B. CREATE VIEW

Discussion

7.	________ uses blocking socket I/O for transport.
A.	TNonblockingServer
B.	TSimpleServer
C.	TSocket
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

8.	__________ is a REST API for HCatalog.
A.	WebHCat
B.	WbHCat
C.	InpHCat
D.	None of the mentioned
Answer» B. WbHCat

Discussion

9.	The output descriptor for the table to be written is created by calling ____________
A.	OutputJobInfo.describe
B.	OutputJobInfo.create
C.	OutputJobInfo.put
D.	None of the mentioned
Answer» C. OutputJobInfo.put

Discussion

10.	____________ is used with Pig scripts to write data to HCatalog-managed tables.
A.	HamaStorer
B.	HCatStam
C.	HCatStorer
D.	All of the mentioned
Answer» D. All of the mentioned

Discussion

11.	Lucene provides scalable, high-Performance indexing over ______ per hour on modern hardware.
A.	1GB
B.	150GB
C.	1TB
D.	150TB
Answer» C. 1TB

Discussion

12.	Mahout provides an implementation of a ______________ identification algorithm which scores collocations using log-likelihood ratio.
A.	collocation
B.	compaction
C.	collection
D.	none of the mentioned
Answer» B. compaction

Discussion

13.	In Ambari User Views, Which user view helps you understand and optimize your cluster resource usage?
A.	Hive
B.	Pig
C.	Tez
D.	Capacity Scheduler
Answer» D. Capacity Scheduler

Discussion

14.	Flume Big data has different levels of reliability to offer?
A.	best-effort delivery
B.	end-to-end delivery
C.	both a and b
D.	None of the above
Answer» D. None of the above

Discussion

15.	How many types of modes are present in Hama?
A.	2
B.	3
C.	4
D.	5
Answer» C. 4

Discussion

16.	All file access uses Java’s __________ APIs which give Lucene stronger index safety.
A.	NIO.2
B.	NIO.3
C.	NIO.4
D.	NIO.5
Answer» B. NIO.3

Discussion

17.	Which of the following is incorrect job type in oozie?
A.	Oozie Workflow Jobs
B.	Oozie Coordinator Jobs
C.	Oozie Notebundle jobs
D.	All of the above
Answer» D. All of the above

Discussion

18.	The HCatalog interface for Pig consists of ____________ and HCatStorer, which implement the Pig load and store interfaces respectively.
A.	HCLoader
B.	HCatLoader
C.	HCatLoad
D.	None of the mentioned
Answer» C. HCatLoad

Discussion

19.	_______________ method is used to include a projection schema, to specify the output fields.
A.	OutputSchema
B.	setOut
C.	setOutputSchema
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

20.	The top-level ___________ package contains three of the most important specializations in Crunch.
A.	org.apache.scrunch
B.	org.apache.crunch
C.	org.apache.kcrunch
D.	all of the mentioned
Answer» C. org.apache.kcrunch

Discussion

21.	A ___________ is an application that is deployed into the Ambari container.
A.	trigger
B.	procedure
C.	view
D.	schema
Answer» D. schema

Discussion

22.	For Scala users, there is the __________ API, which is built on top of the Java APIs.
A.	Prunch
B.	Scrunch
C.	Hivench
D.	All of the mentioned
Answer» C. Hivench

Discussion

23.	HCatalog maintains a cache of _________ to talk to the metastore.
A.	HiveServer
B.	HiveClients
C.	HCatClients
D.	All of the mentioned
Answer» C. HCatClients

Discussion

24.	___________ includes Apache Drill as part of the Hadoop distribution.
A.	Impala
B.	MapR
C.	Oozie
D.	All of the mentioned
Answer» C. Oozie

Discussion

25.	__________ is a scalable distributed monitoring system for high-performance computing systems.
A.	Nagios
B.	Ganglia
C.	Nagaond
D.	All of the above
Answer» C. Nagaond

Discussion

26.	Lucene provides scalable, high-Performance indexing over ______ per hour on modern hardware.
A.	1 TB
B.	150GB
C.	10 GB
D.	None of the mentioned
Answer» C. 10 GB

Discussion

27.	The first call on the HCatOutputFormat must be ____________
A.	setOutputSchema
B.	setOutput
C.	setOut
D.	OutputSchema
Answer» C. setOut

Discussion

28.	You can write to a single partition by specifying the partition key(s) and value(s) in the ___________ method.
A.	setOutput
B.	setOut
C.	put
D.	get
Answer» B. setOut

Discussion

29.	_________ does not restrict contributions to Hadoop based implementations.
A.	Mahout
B.	Oozie
C.	Impala
D.	All of the mentioned
Answer» B. Oozie

Discussion

30.	On the write side, it is expected that the user pass in valid _________ with data correctly.
A.	HRecords
B.	HCatRecos
C.	HCatRecords
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

31.	SolrJ now has first class support for __________ API.
A.	Compactions
B.	Collections
C.	Distribution
D.	All of the mentioned
Answer» C. Distribution

Discussion

32.	Apache _________ provides direct queries on self-describing and semi-structured data in files.
A.	Drill
B.	Mahout
C.	Oozie
D.	All of the mentioned
Answer» B. Mahout

Discussion

33.	Groom servers starts up with a ________ instance and an RPC proxy to contact the bsp master.
A.	RPC
B.	BSPPeer
C.	LPC
D.	None of the mentioned
Answer» C. LPC

Discussion

34.	Which of the following can be used to launch Spark jobs inside MapReduce?
A.	SIM
B.	SIMR
C.	SIR
D.	RIS
Answer» C. SIR

Discussion

35.	___________ property allows us to specify a custom dir location pattern for all the writes, and will interpolate each variable.
A.	hcat.dynamic.partitioning.custom.pattern
B.	hcat.append.limit
C.	hcat.pig.storer.external.location
D.	hcatalog.hive.client.cache.expiry.time
Answer» B. hcat.append.limit

Discussion

36.	Flume deploys as one or more agents, each contained within its own instance of _________
A.	JVM
B.	Channels
C.	Chunks
D.	None of the mentioned
Answer» B. Channels

Discussion

37.	Hama consist of mainly ________ components for large scale processing of graphs.
A.	two
B.	three
C.	four
D.	five
Answer» C. four

Discussion

38.	Which of the following is true about oozie?
A.	Oozie is an Open Source
B.	Oozie is available under Apache license 2.0.
C.	oozie manage Hadoop jobs in a distributed environment.
D.	All of the above
Answer» E.

Discussion

39.	________ is responsible for maintaining groom server status.
A.	GroomServers
B.	BSPMaster
C.	Zookeeper
D.	All of the mentioned
Answer» C. Zookeeper

Discussion

40.	Hama was inspired by Google’s _________ large-scale graph computing framework.
A.	Pragmatic
B.	Pregel
C.	Preghad
D.	All of the mentioned
Answer» C. Preghad

Discussion

41.	Which of the following apache project is gaining a lot of traction steadily with the efforts of its committers?
A.	Hama
B.	Hadoop
C.	Hive
D.	Pig
Answer» B. Hadoop

Discussion

42.	The job is used to represented as Directed Acyclic Graphs (DAGs) to specify a sequence of actions to be executed.
A.	Oozie Bundle Jobs
B.	Oozie Coordinator Jobs
C.	Oozie Workflow Jobs
D.	All of the above
Answer» D. All of the above

Discussion

43.	Which of the following is a more compact binary format?
A.	TCompactProtocol
B.	TDenseProtocol
C.	TBinaryProtocol
D.	TSimpleJSONProtocol
Answer» B. TDenseProtocol

Discussion

44.	________ is a multi-threaded server using standard blocking I/O.
A.	TNonblockingServer
B.	TThreadPoolServer
C.	TSimpleServer
D.	None of the mentioned
Answer» C. TSimpleServer

Discussion

45.	Flume carries data between?
A.	sources and decorator
B.	sources and sinks
C.	start and decorator
D.	decorator and sinks
Answer» C. start and decorator

Discussion

46.	During merging, __________ now always checks the incoming segments for corruption before merging.
A.	LocalWriter
B.	IndexWriter
C.	ReadWriter
D.	All of the mentioned
Answer» C. ReadWriter

Discussion

47.	In which year Apache Mahout started?
A.	2007
B.	2008
C.	2009
D.	2010
Answer» C. 2009

Discussion

48.	Which of the following is not a features of Mahout?
A.	Mahout lets applications to analyze large sets of data effectively and in quick time.
B.	Mahout includes matrix and vector libraries.
C.	Mahout comes with distributed fitness function capabilities for evolutionary programming.
D.	All of the above
Answer» E.

Discussion

49.	Mahout provides ____________ libraries for common and primitive Java collections.
A.	python
B.	perl
C.	java
D.	C
Answer» D. C

Discussion

50.	In Ambari User Views, Which user view is similar to the Hive View?
A.	Tez View
B.	Capacity Scheduler
C.	Files View
D.	Pig View
Answer» E.

Discussion

Explore topic-wise MCQs in Testing Subject.

Drill also provides intuitive extensions to SQL to work with _______ data types.

Which of the following is a straightforward binary format?

A Flume agent is a JVMprocess which has?

A float parameter, defaults to 0.0001f, which means we can deal with 1 error every __________ rows.

Flume Hadoop can also be used to transport event data including but not limited to network traffic data, data generated by social media websites and email messages.

Which of the following Hive commands is not supported by HCatalog?

________ uses blocking socket I/O for transport.

__________ is a REST API for HCatalog.

The output descriptor for the table to be written is created by calling ____________

____________ is used with Pig scripts to write data to HCatalog-managed tables.

Lucene provides scalable, high-Performance indexing over ______ per hour on modern hardware.

Mahout provides an implementation of a ______________ identification algorithm which scores collocations using log-likelihood ratio.

In Ambari User Views, Which user view helps you understand and optimize your cluster resource usage?

Flume Big data has different levels of reliability to offer?

How many types of modes are present in Hama?

All file access uses Java’s __________ APIs which give Lucene stronger index safety.

Which of the following is incorrect job type in oozie?

The HCatalog interface for Pig consists of ____________ and HCatStorer, which implement the Pig load and store interfaces respectively.

_______________ method is used to include a projection schema, to specify the output fields.

The top-level ___________ package contains three of the most important specializations in Crunch.

A ___________ is an application that is deployed into the Ambari container.

For Scala users, there is the __________ API, which is built on top of the Java APIs.

HCatalog maintains a cache of _________ to talk to the metastore.

___________ includes Apache Drill as part of the Hadoop distribution.

__________ is a scalable distributed monitoring system for high-performance computing systems.

Lucene provides scalable, high-Performance indexing over ______ per hour on modern hardware.

The first call on the HCatOutputFormat must be ____________

You can write to a single partition by specifying the partition key(s) and value(s) in the ___________ method.

_________ does not restrict contributions to Hadoop based implementations.

On the write side, it is expected that the user pass in valid _________ with data correctly.

SolrJ now has first class support for __________ API.

Apache _________ provides direct queries on self-describing and semi-structured data in files.

Groom servers starts up with a ________ instance and an RPC proxy to contact the bsp master.

Which of the following can be used to launch Spark jobs inside MapReduce?

___________ property allows us to specify a custom dir location pattern for all the writes, and will interpolate each variable.

Flume deploys as one or more agents, each contained within its own instance of _________

Hama consist of mainly ________ components for large scale processing of graphs.

Which of the following is true about oozie?

________ is responsible for maintaining groom server status.

Hama was inspired by Google’s _________ large-scale graph computing framework.

Which of the following apache project is gaining a lot of traction steadily with the efforts of its committers?

The job is used to represented as Directed Acyclic Graphs (DAGs) to specify a sequence of actions to be executed.

Which of the following is a more compact binary format?

________ is a multi-threaded server using standard blocking I/O.

Flume carries data between?

During merging, __________ now always checks the incoming segments for corruption before merging.

In which year Apache Mahout started?

Which of the following is not a features of Mahout?

Mahout provides ____________ libraries for common and primitive Java collections.

In Ambari User Views, Which user view is similar to the Hive View?