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Exam 14: Big Data Analytics and NoSQL

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Question 41

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__ ___ focuses on filtering data as it enters the system to determine which data to keep and which to discard.

A) Scaling up
B) Feedback loop processing
C) Stream processing
D) Scaling out

E) A) and C)
F) A) and B)

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Question 42

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Modeling and storing data about relationships is the focus of:

A) key-value databases
B) column-oriented databases
C) document databases
D) graph databases

E) A) and D)
F) A) and C)

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Question 43

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Explain the concept of data analytics.What are the various tools of data analytics?

Scaling out is also referred to as .

______minimizes the number of disk reads necessary to retrieve a row of data.

In many ways,the issues of associated with volume and velocity are the same.

Much ambiguity exists in defining Big Data.

refers to traditional,relational database technologies that use column-centric,not row-centric storage.

A block report is used to let the name node know that the data mode is still available.

do not store relationships as perceived in the relational model and generally have no support for join operations.

To query the value component of the pair when using a key-value database,use get or:

Interest in graph databases can be tied to the area of social networks.

For a data set to be considered Big Data,it must display all the "3 Vs" - volume,velocity and variety.

Which of the following is NOT a key assumption of the Hadoop Distributed File System?

Key-value and document databases are structurally similar.

Two of the most popular applications to simplify the process of creating MapReduce jobs are Hive and