Chapter 6 Flashcards
Internet backbone
Network of high-capacity routers and fiber-optic communications links that provides the main routes for data traffic across the Internet
NSP
Network service provider; Maintain backbone links and routers
Network access points
Tie together NSP equipment and links
ISP
Internet service provider; offers Internet access to individuals, businesses, and smaller ISPs
Modem
Contains circuitry that converts the data-carrying signals from your computer to signals that can travel over various communications channels
TCP
Transmission Control Protocol; Creates packets and exchanges packets of data
IP
Internet Protocol; Provides devices with unique addresses
HTTP
Hypertext Transfer Protocol; Exchanges information over the Web
FTP
File Transfer Protocol; Transfers files between local and remote host computers
VoIP
Voice over Internet Protocol; Transmits voice conversations over the Internet
TCP/IP
Primary protocol suite responsible for message transmission on the Intenet
Protocol suite
Combination of protocols that work together
Static IP address
Permanently assigned IP address
Dynamic IP address
Temporarily assigned IP address
Always-on connection
Linked to your ISP and is online whenever your computer and modem are on, even if you are not actively accessing the Internet
FQDN
Fully qualified domain name, also known as a domain name
Domain name
Part of the addresses for servers that handle e-mail and Web sites
Top-level domain
The extension at the end of a domain name
Domain Name System (DNS)
A huge database in which every unique IP address corresponding to a domain name has been entered
DNS cache poisoning
When a domain name server is hacked and directs Internet users to a wrong or malicious Web site
ICANN
Internet Corporation for Assigned Names and Numbers; Recognized as the global organization that coordinates technical management of the Internet’s Domain Name System
Latency
The elapsed time for data to make a round trip from point A to point B and back to point A
Ping
Packet Internet Groper; Sends a signal to a specific Internet address and waits for a reply
Traceroute
Utility that records a packet’s path in addition to its round-trip speed