BACS Quiz 2

blockchain

A type of distributed ledger technology consisting of data structure blocks that may contain data or programs, with each block holding batches of individual transactions and the results of any executables. Each block contains a time stamp and a link to a previous block.

four functions that a database management system can perform on data in a database

Create data delete data read data update data

What creates, reads, updates, and deletes data in a database while controlling access and security?

Database management system

Voice over

IP uses IP technology to transmit telephone calls. (Please use the acronym)

smartphones

What offers more advanced computing ability and connectivity than basic cell phones

data artist

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

WiMAX

a communications technology aimed at providing high-speed wireless data over metropolitan area networks

LAN

a local area network that uses radio signals to transmit and receive data over distances of a few hundred feet.

data warehouse

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

streaming

a method of sending audio and video files over the Internet in such a way that the user can view the file while it is being transferred

wireless MAN

a metropolitan area network that uses radio signals to transmit and receive data

Wireless MAN

a metropolitan area network that uses radio signals to transmit and receive data. Multiple choice question.

Extraction, transformation, and loading (ETL)

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

proof-of-work

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 on the distributed ledger or blockchain

Secure Sockets Layer (SSL)

a standard security technology for establishing an encrypted link between a web server and a browser, ensuring that all data passed between them remain private

SSL

a standard security technology for establishing an encrypted link between a web server and a browser, ensuring that all data passed between them remain private. (Please use the acronym)

data lake

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

data field

a synonym for data element, the smallest or basic unit of data in a database. Multiple choice question.

bitcoin

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

WWAN

a wide area network that uses radio signals to transmit and receive data

wireless WAN

a wide area network that uses radio signals to transmit and receive data.

bluetooth

a wireless PAN technology that transmits signals over short distances among cell phones, computers, and other devices

A web server requires an SSL certificate

an electronic document that confirms the identity of a website or server and verifies that a public key belongs to a trustworthy individual or company. Multiple choice question.

data set

an organized collection of data

hotspots

are designated locations where Wi-Fi access points are publicly available

data dictionary

compiles all of the metadata about the data elements in the data model

data mart

contains a subset of data warehouse information

data governance system

creates, reads, updates, and deletes data in a database while controlling access and security

Real-time __________ provide real-time data in response to requests.

data

physical view of data

deals with the physical storage of data on a storage device. Multiple choice question.

business rule

defines how a company performs certain aspects of its business and typically results in either a yes/no or true/false answer

data quality audits

determine the accuracy and completeness of its dat

wireless access point

enables devices to connect to a wireless network to communicate with each other

Business-critical integrity constraints

enforces business rules vital to an organization's success and often require more insight and knowledge than relational integrity constraints

dirty data

erroneous or flawed data

logical view of data

focuses on how individual users logically access data to meet their own particular business needs

WAPs with MIMO

have multiple transmitters and receivers, allowing them to send and receive greater amounts of data than traditional networking devices. (Please use the acronym) Multiple choice question.

query-by-example

helps users graphically design the answer to a question against a database

source data

identifies the primary location where data is collected

war driving

is deliberately searching for Wi-Fi signals while driving by in a vehicle.

Database

maintains data about various types of objects (inventory), events (transactions), people (employees), and places (warehouses)

data integrity

measure of the quality of data

bandwidth

measures network performance and represents the maximum amount of data that can pass from one point to another in a unit of time

data gap analysis

occurs when a company examines its data to determine if it can meet business expectations, while identifying possible data gaps or where missing data might exist. Multiple choice question.

analysis paralysis

occurs when the user goes into an emotional state of over analyzing (or over-thinking) a situation so that a decision or action is never taken, in effect paralyzing the outcome

dataset

organized collection of data

infographics (information graphics)

present the results of data analysis, displaying the patterns, relationships, and trends in a graphical format.

distributed computing

processes and manages algorithms across many machines in a computing environment

PAN

provides communication for devices owned by a single user that work over a short distance

personal area network

provides communication for devices owned by a single user that work over a short distance. Multiple choice question.

metadata

provides details about data

real time system

provides real time data in response to requests

ledger

records classified and summarized transactional data

data steward

responsible for ensuring the policies and procedures are implemented across the organization and acts as a liaison between the MIS department and the business.

Relational integrity constraints

rules that enforce basic and fundamental information-based constraints

Relational integrity constraints

rules that enforce basic and fundamental information-based constraints, such as not creating an order for a nonexistent customer

integrity constraints

rules that help ensure the quality of data

Wide Area Network (WAN)

spans a large geographic area such as a state, province, or country

relational database model

stores data in the form of logically related two-dimensional tables

Warehouse database model

stores data in the form of logically related two-dimensional tables. Multiple choice question.

data aggregation

the collection of data from various sources for the purpose of data processing

data cube

the common term for the representation of multidimensional data

access point

the computer or network device that serves as an interface between devices and the network

data redundancy

the duplication of data, or the storage of the same data in multiple places

data granularity

the extent of detail within the data

data stewardship

the management and oversight of an organization's data assets to help provide business users with high-quality data that is easily accessible in a consistent manner

bit rate

the number of bits transferred or received per unit of time

bit

the smallest element of data and has a value of either 0 or 1

data latency

the time it takes for data to be stored or retrieved

Data cleansing (data scrubbing)

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

HTTPS SHTTP

two terms that represent a combination of HTTP and SSL to provide encryption and secure identification of an Internet server

data integrity issues

when a system produces incorrect, inconsistent, or duplicate data`

data inconsistency

when the same data element has different values