A.   setReplication(string replication, Path p, FsPermission permission)

B.   setReplication(FsPermission permission, short replication)

C.   setReplication(string replication, Path p)

A.   Only i) and ii)

B.   Only ii) and iii)

D.   Only iii) and iv)

E.   Only i), ii), and iii) 

A.   Tasktracker

C.   YARN

D.   Node Manager

A.   YARN_CONF_DIR

B.   HADOOP_PREFIX

D.   HADOOP_HOME

A.   fetchdt

B.   dfs

C.   oiv

A.   bin/hdfs dfs −cat /newexample/example1.txt

B.   bin/hadoop dfsadmin -ddir /newexample/example1.txt

D.   bin/hdfs dfsadmin -ddir /newexample/example1.txt 

A.   Resource Manager

B.   Node Manager

D.   Container

A.   Transform

B.   Command Line

C.   ObjectInspector

A.   It displays the summary of file lengths.

C.   It displays the number of files in a particular directory.

D.   It displays the numbers and names of files present in a particular directory. 

A.   Only i) and iii)

B.   Only ii) and iv)

D.   Only i), iii), and iv)

E.   All i), ii), iii), and iv) 

B.   io.record.sort.percent

C.   mapreduce.partitioner.class

D.   mapreduce.task.io.mb 

A.   PigReducerEstimator interface

B.   StoreFunc interface

C.   FilterFunc interface

A.   ORDER BY

C.   Either a or b

D.   None of the above 

A.   CREATE MyData DATABASE

C.   CREATE NEW MyData DATABASE

D.   CREATE NEW DATABASE MyData 

B.   It is used for expanding the wildcards.

C.   It is used for specifying a resource manager.

D.   It is used for assigning a value to a property

A.   Interactive mode

B.   Batch mode

D.   Either Interactive or Batch mode 

A.   bytearray

B.   Bag

C.   Map

A.   It provides insights on the status of the application.

B.   It guarantees the restart on the application and hardware failures.

D.   It handles the applications submitted by the clients. 

B.   It removes the duplicate tuples while concatenating the datasets.

C.   It preserves the ordering of the tuples while concatenating the datasets.

D.   It uses the ONSCHEMA qualifier for giving a schema to the result 

A.   Cogroup

B.   Foreach

D.   Union 

A.   hadoop command [streamingOptions]

B.   command ∼ Hadoop [genericOptions] [streamingOptions]

D.   command ∼ Hadoop [streamingOptions] [genericOptions] 

A.   The joins in Hive are commutative.

C.   The first table participating in the join is streamed to the reduce task by default.

D.   All are correct.

A.   hdfs chgrp [owner] [:[group] ] [-R] <filepath><newgroup>

C.   hdfs chgrp [-R] <[group[: [owner]> <filepath>

D.   hdfs chgrp <group> <filepath>[-R] <newgroup>

E.   hdfs chgrp <group>[-R] <newgroup> 

A.   LevelDB based state-store

B.   FileSystem based state-store

D.   Either option a or b could be used 

B.   In HDFS, a user is not allowed to create directories.

C.   HDFS supports hard links.

D.   HDFS implements user quotas. 

B.   tail

C.   text

D.   test

A.   hadoop fs ∼ D blocksize=536870912 -put abc.dat.txt to abc.dat.newblock.txt

B.   hadoop fs.blocksize=536870912 -put abc.dat.txt abc.dat.newblock.txt

D.   hadoop fs.blocksize −D=536870912 -put abc.dat.txt to abc.dat.newblock.txt 

A.   It is used for identifying the class to be used by the client.

B.   It used for listing the logical ID's used by Resource Managers.

C.   It is used for specifying the corresponding host name for Resource Manager.

A.   The scaling in MapReduce is non-linear, whereas in RDBMS it is linear.

C.   The integrity of MapReduce is higher as compared to RDBMS.

D.   The access pattern of MapReduce is Batch, whereas the access pattern of RDBMS is Interactive and Batch 

A.   It prevents the Application Manager from providing links to the malicious external sites.

B.   It prevents the execution of the malicious JavaScript code.

D.   It runs as a part of Resource Manger but cannot be configured to run in the stand-alone mode. 

A.   −output directoryname

C.   −combiner streamingCommand

D.   −reducer JavaClassName 

A.   -file ABC =/home/example/

B.   −mapper ABC = /home/inputReader/example/dictionaries/

C.   −input ABC = /home/directories/example

B.   It can be deployed easily.

C.   It is highly flexible.

D.   It can protect against software as well as physical threats.

A.   hadoop fs −chmod abc 310

C.   hadoop fs ∼chmod 420 abc

D.   hadoop fs −chmod abc ∼ 860

A.   Read

B.   Write

D.   All three permission levels are allowed

A.   Left semi-join

B.   Inner join

D.   Fuzzy join 

A.   kinit

B.   klist

D.   mradmin

E.   dfsadmin 

B.   yarn.timeline-service.enabled

C.   yarn.timeline-service.generic-application-history.enabled

D.   yarn.timeline-service.recovery.enabled 

A.   yarn node -jar [main class name] <jar file path>[arguments…]

C.   yarn application -jar [main class name] <jar file path> [arguments…]

D.   yarn logs jar <jar file path> [main class name] [arguments…] 

B.   --config. YarnConfiguration

C.   daemonlog −getlevel

D.   daemonlog confdir 

B.   set −v

C.   dfs

D.   reset 

A.   It is used for executing a dfs command from the Hive shell.

B.   It is used for executing a shell command inside the CLI.

D.   It is used for executing a dfs command inside the CLI. 

A.   Only i) and iii)

B.   Only i) and ii)

C.   Only i), ii), and iv)

A.   yarn.resourcemanager.ha.rm-ids

C.   yarn.resourcemanager.hostname.rm-id

D.   yarn.resourcemanager.scheduler.address.rm-id

A.   setgid

B.   setFile

D.   setQuota

E.   setConf 

A.   DESCRIBE

C.   EXPLAIN

D.   Both a and b 

B.   $ mvn Pdocs

C.   $ curl − mvn Pdocs

D.   $ curl − mvn Pdocs − package 

A.   security.client.datanode.protocol.acl

B.   security.namenode.protocol.acl

C.   security.client.protocol.acl

B.   3 days

C.   5 days

D.   7 days 

B.   org.apache.hadoop.security.ShellBasedUnixGroupsMapping class name

C.   org.apache.hadoop.security.LdapGroupsMapping class

D.   org.apache.hadoop.security.ssl class name