5 Flashcards
The electronic transfer of data is called
Telecommunications
The transfer of elect electronic data occurs to
Communications media
What are the two basic ways to send data?
Analogue and digital
Continuously, varying frequency, smooth with an accurate
Analogue
Series of bits, accurate, and choppy
Digital
A collection of computers that communicate with one another over transmission lines
Network
The procedures used to transfer information between machines are called
Protocols
A collection of computers that communicate with one another another over transmission media
Computer network
LAN, WAN, Internet. Are three basic types of.
Computer networks
File server for storing shared files. Print server for sharing a single printer. Application server for sharing applications.
LAN typically requires
Special purpose device that controls data traffic flow on LAN
Switch
Hardware that connects computers together
Network interface card
Is a controlled, self-contained grouping of information resources that can be accessed within a single company using web browsers
Intranet
Similar to an intranet, but is a designed to facilitate communications between two or more business partners
Extra net
An address on the Internet is called a
URL
URL stands for
Uniform resource locator
The address is defined in the Internet protocol as is called an
IP number
Four by value that is expressed by converting each bite into a decimal number and separating the bites with the period
IP number
Distributed Internet, directory service. DNS is used mostly to translate between domain names and IP addresses, and to control Internet. Email delivery.
Domain name system
Hyper text transfer protocol
HTTP
Helps us to send webpages across the web
http://
Hopes to send files across the network
FTP. File transfer protocol.
Transfer files using peer to peer file sharing
Bit torrent
Help us receive mail messages across the web. Server assumed one client.
Post office protocol. POP.
Helps us receive mail messages across the web. Server seems multiple clients.
Internet message access protocolIMAP
What does TCP stand for?
Transmission control protocol
A device that prevents unauthorized and network access
Firewall
Uses public Internet, or private Internet, to create appearance of private point point connections
VPN
