Which step is executed by the data scientist after obtaining the data?
Data Cleansing
Excellent ! Your Answer is Correct
Data Integration
Data Replication
All Options are Correct
Category: Hadoop Basics
3V’s are not enough to describe big data.
3V’s are not enough to describe big data.
TRUE
Excellent ! Your Answer is Correct
FALSE
Partially True
None of the Option is Correct
Which of the following analytical competencies are offered by information management corporations?
Which of the following analytical competencies are offered by information management corporations?
All Options are Correct
Excellent ! Your Answer is Correct
Stream Computing
Content Management
Information Integration
Which of the big data characteristic is comparatively more concerned with data science?
Which of the big data characteristic is comparatively more concerned with data science?
Variety
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Velocity
Volume
None of the Option is Correct
Beyond Volume, velocity and variety are the concerns and problems of big data veracity.
Beyond Volume, velocity and variety are the concerns and problems of big data veracity.
TRUE
Excellent ! Your Answer is Correct
FALSE
Partially True
None of the Option is Correct
Which of the following is a correct statement.
Which of the following is a correct statement.
None of the Option is Correct
Excellent ! Your Answer is Correct
Machine learning emphasizes on prediction, based on well-known properties learned from the training data
Data Cleaning emphasizes on prediction, based on well-known properties learned from the training data
All Options are Correct
Which of the following is a wrong statement.
Which of the following is a wrong statement.
Big Data is just about tons of data
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The data growth and social media explosion have improved that how we look at the data
The big volume actually represents Big Data
All Options are Correct
Applications can use the ____________ to report progress and set application-level status messages
Applications can use the ____________ to report progress and set application-level status messages
Reporter
Excellent ! Your Answer is Correct. Reporter is also used to update Counters, or just indicate that they are alive.
Partitioner
OutputSplit
All Options are Correct
Point out the wrong Statement.
Point out the wrong Statement.
A MapReduce job usually splits the input data-set into independent chunks which are processed by the map tasks in a completely parallel manner.
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The MapReduce framework operates exclusively on pairs.
Applications typically implement the Mapper and Reducer interfaces to provided the map and reduce methods
None of the Option is Correct
Point out the Correct Statement.
Point out the Correct Statement.
The Hadoop framework publishes the job flow status to an internally running web server on the master nodes of the Hadoop cluster.
Excellent ! Your Answer is Correct.
Each incoming file is broken into 32MB by default
Data blocks are replicated across different nodes in the cluster to ensure a low degree of fault tolerance
None of the Option is Correct