Computer Network

Computer Network - Page Text Content

S: Seasons of Change

BC: All copyrights reserved to: Ana Gaby Sanchez The American School of Tampico Mexico 2012

FC: Computer Network

1: Essential Question | Why Computer Networks are so important for current society?

2: Case: A visitor trying to use a blackberry to access ATS network services.

3: For the visitor to access the ATS network many steps happen. First, the visitor is the network client trying to use the LAN (Local Area Network).

4: The node is the blackberry because this is the device trying to connect.

5: The blackberry has a NIC (Network Interface Card) which it allows to connect to the Internet.

6: The blackberry signal goes from the NIC to the wireless access point.

7: The wireless access point send the signal to the SITE, through the optic cable.

8: Inside the SITE the router receives the signal and sends it to the firewall.

9: Then, the firewall is going to block unwanted access.

11: The visitor trying to use a blackberry to access the ATS, cannot access the LAN, because access was denied.