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