Computer Concepts Final Exam lecture 7 Flashcards
What is bandwidth?
Speed or data transfer rate of network measured in kilobits per second.
What is broadband?
Anything transferred over 10 mbps. Include DSL, cable internet access, satellite internet access, fiber-to-the home, mobile internet access and wifi hotspots.
HTML meaning and purpose
Hypertext markup language that defines structure of a webpage.
CSS meaning
Cascading style sheets - Computer language for laying out and structuring websites, seperates content of a website from its visual.
URL meaning
Uniform resource locator. identifies website adresses on internet.
What is a domain name?
company, product or person associated with webpage.
What are TLD and what does it mean.
The type of website we are visiting. .com, .edu, .gov.
What does the DNS (domain name system) do?
converts IP addresses into more friendly names such as google.com
T/F Synchronous online communication is real time communication between two or more people online at the same time?
True
VoIP meaning
Voice over internet protocol. Internet calls instead of telephone lines or cell towers.
T/F Asynchronous online communication allows for one to communicate without needing the other online?
True
What is CAPTCHA?
Completely automated public turing test to tell computers and humans apart. Like the little check mark box or finding the bike in an image.
What does RSS stand for?
Really simple syndication. Basically allows websites and apps to redistribute updates and information in a standardized format. Like podcast list from most recent and with descriptions.
T/F Relational models take data and format it into a less structured format.
False. It is an intuitive, straightforward way of representing data in tables.
4 components of ACID properties and what it helps with.
Atomic - transaction is completed entirely or not at all.
Consistent - must conform to existing data base rules.
Isolated - must not affect other transactions.
Durable - must get written to persistent storage
