Deck 14: Big Data Analytics and NoSQL

Question 1

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

Answer 1

False

Question 2

Key-value and document databases are structurally similar.

Answer 2

True

Question 3

Flume is a tool for converting data back and forth between a relational database and the HDFS.

Answer 3

False

Question 4

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

Question 5

One tenet of Big Data is that all data that is capable of being captured should be.

Question 6

Most NoSQL products run only in a Linux or Unix environment.

Question 7

The analysis of data to produce actionable results is feedback loop processing.

Question 8

A column-family database is a NoSQL database model that organizes data in key-value pairs with keys mapped to a set of columns in the value component.

Question 9

Under the HDFS system,using a write-one,ready-many model simplifies concurrency issues.

Question 10

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

Question 11

Characteristics that are important in working with data in the relational database model also apply to Big Data.

Question 12

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

Question 13

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

Question 14

Relational databases rely on unstructured data.

Question 15

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

Question 16

Hadoop is a database that has become the de facto standard for most Big Data storage and processing.

Question 17

A reduce function takes a collection of key-value pairs with the same key value and summarizes them into a single result.

Question 18

Hive is a good choice for jobs that require a small subset of data to be returned very quickly.

Question 19

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

Question 20

Much ambiguity exists in defining Big Data.

Question 21

___ was the first SQL-on-Hadoop application.

A)Flume
B)Pig
C)Sqoop
D)Impala

Question 22

_ ___ is keeping the same number of systems,but migrating each system to a larger system.

A)Clustering
B)Scaling up
C)Streaming
D)Scaling out

Question 23

Explanatory analytics uses predictive analytics as a stepping stone to create explanatory models.

Question 24

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

A)algorithm
B)feedback loop
C)stream
D)structure

Question 25

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

A)High volume
B)Write-many,read-once
C)Streaming access
D)Fault-tolerance

Question 26

Data mining focuses on the discovery and explanation stages of knowledge acquisition.

Question 27

When using MapReduce,best practices suggest that the number of mappers on a given node should be:

A)100 or more
B)100 or less
C)50 or less
D)at least 300

Question 28

__ ___ 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

Question 29

_ _ is NOT one of the "3 Vs" of Big Data.

A)Volume
B)Velocity
C)Validation
D)Variety

Question 30

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

A)reduce
B)map
C)data
D)block

Question 31

___ is a tool for converting data back and forth between a relational database and the HDFS.

A)Flume
B)Pig
C)Sqoop
D)Impala

Question 32

In the context of Big Data,_____ relates to differences in meaning.

A)variety
B)variability
C)veracity
D)viability

Question 33

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

A)Flume
B)Pig
C)Sqoop
D)Impala

Question 34

Big Data:

A)relies on the use of structured data
B)captures data in whatever format it naturally exists
C)relies on the use of unstructured data
D)imposes a structure on data when it is captured

Question 35

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

A)client,name
B)name,client
C)client,data
D)data,client

Question 36

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

A)value
B)variability
C)veracity
D)viability

Question 37

Which of the following is NOT one of the standard NoSQL categories?

A)document databases
B)column-oriented databases
C)graph databases
D)chart databases

Question 38

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

A)Hadoop
B)Block
C)Hive
D)Batch

Question 39

By default,Hadoop uses a replication factor of:

A)one
B)two
C)three
D)four

Question 40

When using a HDFS,a heartbeat is sent every _____ to notify the name node that the data mode is still available.

A)3 hours
B)3 seconds
C)6 hours
D)6 seconds

Question 41

A method of text analysis that attempts to determine if a statement conveys a positive,negative,or neutral attitude is referred to as ___ analysis.

Question 42

Scaling out is also referred to as .

Question 43

uses statistical analysis to answer questions about the how and why of relationships.

A)Explanatory analytics
B)Data mining
C)Predictive analytics
D)Knowledge acquisition

Question 44

Within Hadoop, can transfer data in both directions - into and out of HDFS.

Question 45

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

Question 46

Most organizations 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.

Question 47

The goal of the _____ phase of data mining is to identify common data characteristics or patterns.

A)data preparation
B)data analysis and classification
C)knowledge acquisition
D)prognosis

Question 48

uses statistical tools to answer questions about future data occurrences.

A)Explanatory analytics
B)Data mining
C)Predictive analytics
D)Knowledge acquisition

Question 49

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

Question 50

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

A)explanatory analytics
B)data analytics
C)predictive analytics
D)knowledge acquisition

Question 51

Document databases group documents into logical groups called:

A)buckets
B)sets
C)collections
D)blocks

Question 52

is the coexistence of a variety of data storage and data management technologies within an organization's infrastructure.

Question 53

______ refers to the analysis of the data to produce actionable results.

Question 54

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

A)store
B)fetch
C)retrieve
D)gather

Question 55

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

Question 56

______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

Question 57

The end user decides what techniques to apply to the data when using the _____ mode of data mining

A)guided
B)prognosis
C)directed
D)automated

Question 58

Within MapReduce,a runs maps and reduces functions.

Question 59

Modeling and storing data about relationships is the focus of:

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

Question 60

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

Question 61

In the ____ phase of data mining,findings are used to predict future behavior and forecast business outcomes.

Question 62

Discuss the need for a Hadoop ecosystem and identify the key components.

Question 63

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

Question 64

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

Question 65

Discuss the "3 Vs" of Big Data.How has the definition of Big Data regarding these items changed over time?

Question 66

Discuss NewSQL and what does it attempts to do.

Question 67

The origins of ____ can be traced back to the banking and credit card industries.

Question 68

In a graph database,the representation of a relationship between nodes is called a(n)_____.

Question 69

A query in a graph database is called a(n)_____.

Question 70

is a continuous spectrum of knowledge acquisition that goes from discovery to explanation to prediction..

Question 71

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

Question 72

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

Question 73

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

Question 74

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

Question 75

Define the four key assumptions of the Hadoop Distributed File System (HDFS).

Question 76

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