Archive for the ‘Information Technology’ Category

Computer Network Overview

Thursday, March 20th, 2008

Bushra Bashir asked: Computer networking or data communication is a most important part of the information technology. Today every business in the world needs a computer network for smooth operations, flexibly, instant communication and data access. Just imagine if there is no network communication in the university campuses, hospitals, multinational ...

Free Cisco Ccna, Ccnp, Ccent Tutorial on Switching, Spanning-tree Protocol (stp)

Wednesday, October 3rd, 2007

M. Aslam asked: A Layer 2 switch, which functions as a transparent bridge, offers no additional links for redundancy purposes. To add redundancy, a second switch must be added. Now two switches offer the transparent bridging function in parallel. LAN designs with redundant links introduce the possibility that frames might ...