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ALL defined terms from handout CIS-130-04

Internet

Network of networks

Internet service provider (ISP)

a company that offers internet access to individuals, businesses, and smaller ISP's

Modem

contains circuitry that converts the data-carrying signals from your computer to signals that can travel over various communications channels.

Name and Function of TCP

(Transmission control protocol) It creates connection and exchanges packets of data.

Name and Function of IP

(internet protocol) Provides devices with unique adresses.

Name and Function of HTTP

(Hypertext Transfer protocol) Exchanges information over the web.

Name and Function of FTP

(File Transer Protocol) Transfers files between local and remote host computers.

Name and Function of POP

(Post Office Protocal) Transfers mail from an e-mail server to a client inbox.

Name and Function of IRC

(Internet Relay Chat) Transmits text message in real time between online users.

TCP/IP

the primary protocal suite responsible for message transmission on the internet.

protocol suite

a combination of protocols that work together.

Doman name

officially called a fully qualified doman name (FQDN) is the official name assigned to the U.R.L site or IP adress.

Port

a virtual device.

PING (packet internet groper)

A local internet utility, which sends a signal to specific internet adress and waits for a reply. If a reply takes place PING will report that the computer is online and displays the elapsed time for the round-trip message.

Describe the domain "Com"

for profit site. Used for commercial business.

Describe the domain "Edu"

Restricted to North American educational institutions.

Describe the domain "Gov"

US governmental agencies

Describe the domain "Mil"

Restricted to US military agencies

Describe the domain "Net"

Unrestricted use; traditionally for internet administrative organizations

Describe the domain "Org"

Nonprofit organizations

Describe the domain "Ca"

A Canadian URL site (NOT CALIFORNIA)

Doman Name System (DNS)

a unique IP address that has been entered into a huge database.

Latency

The elapsed time it takes to make a round trip from point A to point B and back to point A

Upstream speed

The rate of data that is transmitted from your computer to the internet

Downstream speed

The rate of data arriving at your computer

dial-up connection

a fixed internet connection that uses a voice band modem on your telephone lines to transport data between your computer and your ISP

Voiceband modem (Modem)

converts the signals from your computer into analog signals that can travel over telephone lines.

ISDN ( Integrated Services Digital Network)

a type of fixed internet connection that moves data of 64 kbps or 128 kbps over ordinary telephone lines.

DSL (Digital Subscriber Line)

a high-speed, digital, always-on, internet access technology that runs over standard telephone lines.

DSL Modern

A device that connects to the computer to a telephone line and converts computer data signals into signals compatible with DSL.

Cable Internet Service

a means of distributing always-on broadband internet access over the same infrastructure that offers cable television service.

CATV

Community Antenna Television

Cable Modem

Converts your computer's signal into one that can travel over the CATV network.

DOCSIS

(Data over cable service interface specification) is a data transport technology that includes security filters. DOCSIS secures your computer from your neighbors, but does not close up all the holes if your computer is left always-on

Satellite Internet Service

a means of distributing always-on, high speed asymmetric internet access by broadcasting data signals over areas large enough to cover most cities and outlying areas.

Wi-Fi Hotspot

a location where you can go to access the internet.

Message Board

An area where individual users may post statements, some true, some false, some very innapropriate as means of communicating with others.

VoIP (Voice Over Internet Protocol) or "Voice"

Technology in which broadband internet connection is used to place telephone calls intead of the regular phone system.

Chat

group communication

ATA ( Analog Telephone Adapter)

a device that converts analog voice signals into digital data packets.

P2P file sharing uses peer-to-peer (P2P) to do what?

Allows users to obtain files from other users located anywhere on the internet.

Bittorrent

a file sharing protocal that distributes the role of file server across a collection of dispersed computers.

Intrusion

is any access to data or programs by hackers, criminals, or other unauthorized persons.

Gopher sites

a TCP/IP internet protocol designed for distibuting, searching and retrieving documents over the internet.

Port probe or port scan

The use of automated success. Software to locate computers that have open ports and are vulnerable to unauthorized.

FTP (File Transfer Protocol)

Provides a way to transfer files from one computer to another over any TCP/IP network, such as a LAN or the Internet.

FTP server

typically resides on a computer containing files that remote users might want to access.

FTP Client

Offers an easy-to-use interface for accessing FTP servers.

Anonymous FTP

can be accessed by logging in without a password by using the user ID "anonymous"

Firewall

a software or hardware designed to filter out suspicous packets to enter or leave a computer.

Routable IP address

one which can be accessed by packets on the internet.

Private IP address

a non-routable IP address that can be used within a LAN, but not for internet data transport.

Network address translation (NAT)

the process your router uses to keep track of packets and their corresponding private or public IP addresses

Virtual Private Network (VPN)

A VPN is a remote serve in the corporate office.

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