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Exam 14: Big Data Analytics and NoSQL

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Question 41

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

A) Column-oriented database
B) Row-centric storage
C) Column-family database
D) Column-centric storage

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

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Question 42

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Much ambiguity exists in defining Big Data.

A) True
B) False

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Question 43

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Scaling out is also referred to as .

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

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

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

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

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

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

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

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

Modeling and storing data about relationships is the focus of:

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

Key-value and document databases are structurally similar.

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

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