Exam 14: Big Data Analytics and NoSQL

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What is NoSQL and what are the major NoSQL approaches (categories)?

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NoSQL is the unfortunate name given to a broad array of nonrelational database technologies that have developed to address Big Data challenges.The name is unfortunate because it does not describe what the NoSQL technologies are,but rather what they are not.Even that explanation is poor.Literally hundreds of products can be considered as NoSQL.Most of them fit into one of four categories: key-value data stores,document databases,column-oriented databases and graph databases.

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

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D

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

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Velocity

Big Data:

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

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When using MapReduce,a _______ function takes a collection and data and sorts and filters it into a set of key-value pairs.

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Most BI vendors are dropping the term "data mining" and replacing it with the term:

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A database model that attempts to provide ACID-compliant transactions across a highly distributed infrastructure is _____.

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Within MapReduce,a runs maps and reduces functions.

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Scaling out is keeping the same number of systems,but migrating each system to a larger one.

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By default,Hadoop uses a replication factor of:

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

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In a column family database,a column that is composed of a group of other related columns is called a(n)______.

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A(n)__ is a process or set of operations in a calculation.

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Hadoop is a high-level tool that requires little effort to create,manage and use.

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When using a HDFS,the _____ node creates new files by communicating with the ____ node.

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databases simply store data with no attempt to understand the contents of the value component or its meaning.

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The ability to graphically data in a way that makes it understandable is the concept of value.

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uses statistical tools to answer questions about future data occurrences.

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In the context of Big Data,_____ refers to the trustworthiness of a set of data.

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