Database
The language a relational database use to create, manipulate and retrieve information.
What is a Structured Query Language (SQL)?
The first most popular portable music device in the 1980s.
What is a Sony Walkman?
The process of sorting data to easily find this middle value of a series of numeric values.
What is a median?
This type of network filters traffic user a set of rules.
What is a firewall?
This common algorithm finds a line that best fit the data.
What is linear regression?
A type of join that combines every row from one table with every row from another table, creating a dataset of all possible combinations.
What is a cartesian join?
The earliest mass-market storage device with 360k bytes capacity.
What is a 5.25 inch floppy disk?
This chart groups data into bins to show how often values occur.
What is a histogram?
This law that requires companies to protect customer data in the EU and the UK.
What is GDPR?
An algorithmic foundation inspired by the structure and function of the human brain.
What is [artificial] neural networks?
A database operation that restores the database to a previous state by undoing all changes made during the current, uncommitted changes.
What is a rollback?
A small, wireless device that receives alerts and short messages (numbers or text) via radio signals.
What is a beeper?
The term for a data point that falls above or below the bounds of a boxplot.
What is an outlier?
The process to converting data into ciphertext to prevent unauthorized access.
What is encryption?
In 2012, Harvard Business Review coined this career path as the sexiest job of the 21st century.
What is data science?
An organization or folder structure defining how data is organized, related, and constrained within a database grouping objects together.
What is a schema?
A type of impact printer that creates characters and images by firing pins against an inked ribbon, transferring dots of ink onto a continuous roll of paper.
What is a dot matrix printer?
This term, first coined in 1962 by John Tukey, describes the initial process of anlyzing data to produce actionable insights.
What is exploratory data analysis (EDA)?
A collection of specific permissions and privileges (like read, write, delete) assigned to users or groups within a database system.
What is a database [security] role?
Splitting data into training and test sets to avoid this problem in machine learning.
What is overfitting?
A database object that stores the precomputed results, a snapshot of the dataset, of a query as a physical table typically with faster access.
What is a materialized view?
An analog magnetic tape cartridge format from the 1960s-1980s, known for its continuous, endless-loop music playback, especially in cars, featuring four programs with two stereo tracks each.
What is an 8-track tape?
The process of using analytical techniques to examine locations, patterns, and relationships in geographic data to uncover insights, solve problems, and make informed decisions.
What is spatial analysis?
An attack that floods a network with traffic for the purpose of disrupting services.
What is a DDoS attack?
A strategy where businesses set flexible prices for products or services that change in real-time based on market conditions like supply and demand.
What is dynamic pricing?