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Exam 14: Big Data Analytics and NoSQL

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Question 41

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

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Question 42

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

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Question 43

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

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

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

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

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

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

Key-value and document databases are structurally similar.

Modeling and storing data about relationships is the focus of:

Scaling out is also referred to as .

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

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

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

Much ambiguity exists in defining Big Data.

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