ZyXEL xtrememimo x-550 Manual Do Utilizador

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ZyXEL X-550 User’s Guide 
An electronic method of providing credentials to a server in order to have access to it or a network   
Direct Sequence Spread Spectrum   
DSSS: Modulation technique used by 802.11b wireless devices   
DMZ  
"Demilitarized Zone". A computer that logically sits in a "no-mans land" between the LAN and the 
WAN. The DMZ computer trades some of the protection of the router's security mechanisms for the 
convenience of being directly addressable from the Internet.   
DNS  
Domain Name System: Translates Domain Names to IP addresses   
Domain name   
A name that is associated with an IP address   
Download  
To send a request from one computer to another and have the file transmitted back to the requesting 
computer  
DSL  
Digital Subscriber Line. High bandwidth Internet connection over telephone lines   
Duplex  
Sending and Receiving data transmissions at the sane time   
Dynamic DNS service   
Dynamic DNS is provided by companies to allow users with Dynamic IP addresses to obtain a Domain 
Name that will always by linked to their changing IP address. The IP address is updated by either client 
software running on a computer or by a router that supports Dynamic DNS, whenever the IP address 
changes  
Dynamic IP address   
IP address that is assigned by a DHCP server and that may change. Cable Internet providers usually use 
this method to assign IP addresses to their customers.   
E  
EAP  
Extensible Authentication Protocol   
Email  
Electronic Mail is a computer-stored message that is transmitted over the Internet   
Encryption  
Converting data into cyphertext so that it cannot be easily read   
Ethernet  
The most widely used technology for Local Area Networks.   
F  
Fiber optic   
A way of sending data through light impulses over glass or plastic wire or fiber   
File server   
A computer on a network that stores data so that the other computers on the network can all access it   
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