1. Network cabling:
http://www.datacottage.com/
Typesof servers:
http://www.networktutorials.info/servers_guide.html
Typesof topologies(how connectedtogether):
http://compnetworking.about.com/od/networkdesign/ig/Computer-Network-Topologies/
Slide showonNetworkBasics:
http://faculty.ksu.edu.sa/atolba/arabic/PublishingImages/Networking_Basics.swf
devices
http://www.comptechdoc.org/independent/networking/guide/netdevices.html
http://www.windowsnetworking.com/articles_tutorials/switch.html
http://www.freetechexams.com/computer-networking/network/networking-devices.html
videoondevices
http://www.youtube.com/watch?v=reXS_e3fTAk&feature=related
videoontopology,devices,cabling,etc.(justmusic)
http://www.youtube.com/watch?v=mIrtZub0UxM