what is the best & cheapest course to learn to become a sysadmin

Dear frends, i used dream to become a System Administrator.But what i only knew is that MCSE course. But some of my frens told me this day for server they mostly used LINUX/UNIX. MCSE is costly and they didn't teach the practical. Its only theory. so you better start it from the cheapest one. If you start with costly one, if you are not interested you will spend lost of money and u won't be able to understand.
As well , i don'nt know which and what course will bring me system admin.
if you have any idea about it please tell me... helphelp...

Linux/Unix boxen are mostly used for web servers. It is valuable experience for a sysadmin, but not necessary. Most domains today are done through Microsoft, and the MCSE cert would be the way to go.

If you are interested in administering web servers and the like, check into the RHCE (Red Hat Certified Engineer) course.

Of course, the most valuable thing is experience, so I would recommend that you do two additional things while you are studying:

1) set up a lab at home. Even if it's on old pentium I machines, you will have actually touched and played with the software. This is more difficult to do with the Microsoft stuff as it has a dollar value attached to it, but will help when applying for a job. Conversely, it is easier to do the Linux lab, and the Linux Cert might be where you want to start your research (based on cost).

2) get an internship that allows you to have experience with these. While I was in school I never put together what a "star topology domain" was until I sat down in front of a domain controller and began playing with it. I got paid almost nothing, and was the low guy on the totem pole, but the experience let me get better jobs later - over the people in my class who hadn't done those things before.

You first asked for a cost-effective analysis of the two. The Red Hat is cheaper. The Microsoft is more widely used.

Whoa there. I only said Red Hat was cheaper. Some of the concepts of networking and some of the protocols, may be similar, bu they are very different technologies, and function very differently. You need to research them, research the job market by where you are, and then decide what is best for you.

Okay, let me ask you different question here again.

I'm from South Delhi, India.
but my problem is this. I don't have any idea about Networking. But i like to become a sysadmin. As i know only sysadmin is like controlling the domain, server.
I'd like to become a sysadmin. but without having anyidea about netwroking or hardware things. if i jump directly to MCSE or RCHE will it be hard for me? Example: without any knowledge of C,C++ if someone directly learn JAVA it will realy hard for him to catchup
please suggest me... according to you opinion.