Ch 7&8

What occurs when the user goes into an emotional state of overanalyzes (or overthinking) a situation so that a decision or action is never taken, in effect paralyzing the outcome?

Analysis paralysis

What is a type of digital currency in which a record of transactions is maintained and new units of currency are generated by the computational solution of mathematical problems and which operates independently of a central bank?

Bitcoin

What is a type of distribution ledger, consisting of blocks of data that maintain a permanent and tamper-proof record of transactional data?

Blockchain

What is a data structure containing a hash, previous hash, and data?

Blocks

Who is a business analytics specialist who uses visual tools to help people understand complex data?

Data artist

What is the ultimate outcome of a data warehouse?

Data marts

What are two terms that describe the process for weeding out, fixing, or discarding inconsistent, incorrect, or incomplete data.

Data scrubbing Data cleansing

Which of the following is a problem associated with dirty data?

Duplicate data Non-formatted data Violates business rules data Nonintegrated data

What is a process that extracts data from internal and external databases, transforms it using a common set of enterprise definitions, and loads it into a data warehouse?

Extraction, transformation, and loading

Which of the following are the reasons business analysis is difficult from operational databases?

Inconsistent data definitions Lack of data standards Inadequate data usefulness

What presents the results of data analysis, displaying the patterns, relationships, and trends in a graphical format?

Infographics

What is extraction, transformation, and loading?

It is a process that extracts data from internal and external databases, transforms it using a common set of enterprise definitions, and loads it into a data warehouse.

What records classified and summarized transactional data?

Ledger

What is a way to validate transactions and achieve a distributed consensus?

Proof-of-stake

What is a requirement to define an expensive computer calculation, also called mining, that needs to be performed in order to create a new group of trustless transactions (blocks) on the distributed ledger or blockchain?

Proof-of-work

What identifies the primary location where data is collected?

Source data

A blockchain is formed by linking ______, data structures containing a hash, previous hash, and data.

blocks

What can compare two or more data sets to identify patterns and trends.

comparative analysis

What occurs when a company keeps tabs of its competitor's activities on the web using software that automatically tracks all competitor website activities such as discounts and new products?

competitive monitoring

What is the collection of data from various sources for the purpose of data processing?

data aggregation

What is a process that weeds out and fixes or discards inconsistent, incorrect, or incomplete information?

data cleansing

What is the common term for the representation of multidimensional data?

data cube

What is a storage repository that holds a vast amount of raw data in its original format until the business needs it?

data lake

What is a technique for establishing a match, or balance, between the source data and the target data warehouse?

data map

What is an individual item on a graph or a chart?

data point

What is an organized collection of data?

data set

What describe technologies that allow users to see or visualize data to transform information into a business perspective?

data visualization

What moves beyond Excel graphs and charts into sophisticated analysis techniques such as pie charts, controls, instruments, maps, time-series graphs, and more?

data visualization tools

What is a logical collection of data, gathered from many different operational databases, that supports business analysis activities and decision-making tasks?

data warehouse

What is erroneous or flawed data?

dirty data

What processes and manages algorithms across many machines in a computing environment?

distributed computing

What is the first block created in the blockchain?

genesis block

What is a function that converts an input of letters and numbers into an encrypted output of a fixed length?

hash

What simply means unchangeable?

immutable