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Networking
N/A
14
Computer Networking
12th Grade
12/05/2012

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Cards

Term
Common Ports
Definition
When used in internet traffic, it is a communication channel that can be used by a service or process and has to follow protocol.
Term
FTP (File Transfer Protocol)
Definition
Used to transfer files from one user to the next, most of the time via the internet. It uses port 21.
Term
SSH (Secure Shell)
Definition
A cryptographic network protocol that is used to secure data communication. It uses port 22.
Term
Telnet
Definition
A communication protocol that sends and receives text-based messages to and from users. It uses port 23.
Term
SMTP (Simple Mail Transfer Protocol)
Definition
Internet protocol for email transfer. It uses port 25.
Term
DNS (Domain Name System)
Definition
A hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. It uses port 53.
Term
HTTP (Hyper Text Transfer Protocol)
Definition
An application protocol for distributed, collaborative, hypermedia information systems. It uses port 80.
Term
POP (Post Office Protocol)
Definition
Is an application-layer Internet standard protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection. It uses port 110.
Term
HTTPS (Hyper Text Transfer Protocol Secure)
Definition
a widely used communications protocol for secure communication over a computer network, with especially wide deployment on the Internet. It uses port 443.
Term
LAN
Definition
A network that usually covers only one physical site, containing one or more buildings housing the network.
Term
WAN
Definition
It can encompass several sites and buildings, and may even span a large geographical area.
Term
Hub
Definition
a central connecting point on a network that sends messages to all computers connected to it, and subdivides the network bandwidth among its connected devices.
Term
Switch
Definition
a device that directs data from one system to another on a set path.
Term
Router
Definition
Moves data from one network to another, across different protocols and topologies.
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