Database Exam 3 (Chapter 11)

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An organization using HDFS realizes that hardware failure is

a norm

Smartphones

are examples of business intelligences and analytics 3.0 because they have millions of observations per second

Word processing programs

are not used for querying and analyzing data stored in data warehouse

When a data repository (including internal and external data) does not follow a predefined schema, this is called

data lake

Big data

does not require a strictly defined data model

The NoSQL model that is specifically designed to maintain information regarding the relationships (often real-world instances of entities) between data items is called a

graph oriented database

Veracity

includes concern about data quality issues

All of the following are applications for big data and analytics except

personal finances (applications include security and public health, science and technology, business)

What is an important scripting language to help reduce the complexity of MapReduce

pig

NoSQL systems allow

scaling out by incorporating commodity servers that can be easily added to the architectural solution

First degree or complete price discrimination relates to

the maximum price customers are willing to pay

NoSQL systems enabled automated

sharding to allow distribution of the data among multiple nodes to allow servers to operate independently on the data located on it

Is it true that in an HDFS cluster the NameNode is the

single master server

At a basic level, analytics refers to

analysis and interpretation of data

The three v's commonly associated with big data are

volume, variety, velocity

Apache Cassandra is a leading producer of

wide-column NoSQL database management systems

The NoSQL model that incorporates 'column families' is called a

wide-column store

is it true that in an HDFS cluster the DataNodes are the

larger number of slaves

An organization that decides to adopt the most popular NoSQL database management system would select

MongoDB

An organization that requires a sole focus on performance with the ability to include strings, hashes, lists, and sorted sets would select

Redis database management system


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