Abstraction
The hiding/layering of information.
Abstraction
An easy-to-remember address for calling a web page.
URL or Uniform Resource Locator?
This system translates domain names (like example.com) to IP addresses (like 93.184.216.34)
DNS or Domain Name System
A characteristic of the Internet that allows it to continue to function despite router and connection failures.
Fault-tolerant
A data compression method that uses inexact approximations, discarding some data to represent the content.
Lossy Compression
A problem solving approach in which you break down a system to gain insight into the sub-systems that make it up.
Top-Down Design
GIF uses this type of compression.
lossless compression
The method or protocol by which data is sent from one computer to another on the Internet
The Internet Protocol
Several coordinated actors attempting to disrupt an online system by flooding it with network traffic.
DDoS attack
Fundamental unit of a digital image
A pixel
#153C2E corresponds to these RGB values
R:21 G:60 B:46
Data that describes other data.
Metadata
IETF stands for
Internet Engineering Task Force
Websites for a college or university should have this domain extension.
.edu
A color model that uses varying intensities of light to produce a broad array of colors
RGB
The color purple can be written in four different ways:
Purple
0111 1111 0100 1111 1100 1001
#7F4FC9
R:127 G:79 B:201
The way of writing purple that uses the lowest level of abstraction is ...
0111 1111 0100 1111 1100 1001
10112 in decimal notation.
11
HTTPS stands for
HyperText Transfer Protocol Secure
HTML uses 6-digit hexadecimal notation for identifying colors on webpages so that the Red/Green/Blue values are each represented by a 2-digit Hexadecimal (16-bit) number. What is the decimal number for the Green color value in the color AC0BFF?
11
A single unit of data carried by a packet-switching network.
A packet
The internet is composed of many layers. Higher level layers depend on the functionality of lower levels without worrying about how they work. List the layers (given alphabetically) in order from lowest to highest.
DNS, Physical Network, TCP, HTTP
Physical Network, TCP/IP, HTTP, DNS
11011012 in decimal notation.
109
Convert 19392 from decimal to hexadecimal.
4BC0
A protocol used in live-streaming and video conferencing
UDP
An information system where documents and other web resources are identified by Uniform Resource Locators
World Wide Web