if i learn hardware and networking can i be able to manage a college network and can i become an computer administrator in a college

Take International Certifications Only not just Training Cert. As Network line progressing the demand of security also increasing. CCNA will Gives u the knowledge of WAN. But without setting LAN u can not setup WAN and for LAN u must know a Server side Operating System. In Server side Linux is very

yes sure you can manage

hi, yes.... you can... but only hardware & network is not ok... you need to learn Windows 2003 server & Linux for manage the networking.. all the best...