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Exam 14: Big Data and Nosql

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Question 21

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

A) True
B) False

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Question 22

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​WithinHadoop, is used for producing data pipeline tasks that transform data in a series of steps.

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Question 23

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Big Data ______.

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

______ was the first SQL on Hadoop application.

______processing occurs when a program runs from beginning to end without any user interaction.

By default, Hadoop uses a replication factor of ______.

For a data set to be considered Big Data, it must display only one of the 3Vs (volume, velocity and variety).

_______ ​languages allow the user to specify what they want, not how to get it which is very useful for query processing.

______ is the Big Data 3 V that relates to the speed at which data is entering the system.

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

______ is a human-readable text format for data interchange that defines attributes and values in a document.

Big Data processing imposes a structure on the data as needed for applications as a part of retrieval and processing.

In MongoDB, ______ method retrieves objects from a collection that match the restrictions provided.

Lack of specificity is what leads to ambiguity in defining Big Data.

______is NOT one of the "3 Vs" of Big Data.

Adatabase model that attempts to provide ACID-compliant transactions across a highly distributed infrastructure is ______.

​WithinHadoop, can transfer data in both directions - into and out of HDFS.

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

Mostorganizations that use Hadoop also use a set of other related products that interact and complement each other to produce an entire ______ of applications and tools.