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Title: Big Data Analyst
Description: Big Data Analyst Roles and Responsibilities. At its core, Big Data analytics centers on uncovering and analyzing useful data like hidden trends and patterns so companies can make more informed business decisions and gain a competitive advantage.
Description: Big Data Analyst Roles and Responsibilities. At its core, Big Data analytics centers on uncovering and analyzing useful data like hidden trends and patterns so companies can make more informed business decisions and gain a competitive advantage.
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“MapReduce Development – 1”
...
________ job usually splits the input data-set into independent chunks which are
processed by the map tasks in a completely parallel manner
...
2
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a) Another limitation of the Hadoop MapReduce framework is its pull-based scheduling
model
b) The MapReduce framework sorts the outputs of the maps, which are then input to the
reduce tasks
c) The MapReduce framework takes care of scheduling tasks, monitoring them and
re-executes the failed tasks
d) All of the mentioned
Answer: d
Explanation: Typically both the input and the output of the job are stored in a file-system
...
Hadoop __________ is a utility which allows users to create and run jobs with any
executables
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4
...
a) Streaming
b) Pipes
c) Orchestration
d) All of the mentioned
Answer: b
Explanation: The MapReduce framework operates exclusively on pairs
...
Point out the wrong statement
...
6
...
a) collected
b) serializable
c) compacted
d) none of the mentioned
Answer: b
Explanation: Writable interface needs to be implemented for key classes
...
Key classes have to implement the __________ interface to facilitate sorting by the
framework
...
8
...
a) optionname
b) -libjars
c) -archives
d) all of the mentioned
Answer: b
Explanation: Applications can specify a comma separated list of paths which would be
present in the current working directory of the task using the option -files
...
The option ___________ allows to pass comma separated list of archives as arguments
...
10
Title: Big Data Analyst
Description: Big Data Analyst Roles and Responsibilities. At its core, Big Data analytics centers on uncovering and analyzing useful data like hidden trends and patterns so companies can make more informed business decisions and gain a competitive advantage.
Description: Big Data Analyst Roles and Responsibilities. At its core, Big Data analytics centers on uncovering and analyzing useful data like hidden trends and patterns so companies can make more informed business decisions and gain a competitive advantage.