CCNA ICND1&ICND2
September 23, 2013
What is a firewall?
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Introduction to OSPF Part 2
Star Topology
In a star topology, each network device has a home run of cabling back to a network hub, giving each device a separate connection to the ne...
Data Link Layer
The goal of the data link layer is to provide reliable, efficient communication between adjacent machines connected by a single communicati...
Understanding IP Addresses
Understanding IP Addresses: An IP address is an address used in order to uniquely identify a device on an IP network. The address i...
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