Nt1310 Unit 2 Networking And Communication
Networking and communication.
A WAN spans over a large geographical area using the internet, satellite links or leased wires. An example of a wide area network would be the internet, which is also the largest Wan in existence today. A Wan is used by businesses to access information from a distance where it would be impossible with a Local area network. A Wan network allows for much more larger/ intricate network and can cover nigh infinite geographical distances.
Because of its size a WAN is usually slower than a LAN, distance being a major factor.
A LAN is a network that interconnects computers within a limited geographical area, no bigger than a home, office or Building. One of the advantages
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Only functional as long as you can reach a WI-FI-connection (which rapidly deteriorates after no more than 24 meters) and an Ethernet cable (There are no Ethernet cables on the market that can reach throughout an entire building). A PAN such as Bluetooth and infrared transfer information from and to different devices within a limited area of about 10 meters. Infrared can only work if both devices are in line of vision. While Bluetooth using radio waves does not have the same limitation, but does require you to be within certain distance approximately 10 meters in …show more content…
Consider three different applications used on a network and in a word document evaluate this together with their connectivity media method
Sending Email: Every email that is sent passes through a series of mail servers along its way to its intended recipient. After composing a message and hitting send, your email client - connects to your domain's SMTP server. And then your email client communicates with the SMTP server, giving it your email address, the recipient's email address, the message body and attachments. The SMTP server processes the recipient's domain name, the SMTP server will have to communicate with the other domain's server.
In order to find the recipient's server, the sender's SMTP server has to find the Domain Name Server. The domain name server takes the recipients email domain name and translates it into an IP address. The sender's SMTP server needs more than just a DNS it also requires an IP address that is assigned to every computer.
Accessing the internet: each computer connected to the internet must have a unique address(ip) If you connect to the internet through LAN, your computer might have a permanent ip address or it might obtain a temporary one from a DCHP
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