Which course should i apply .Experts please help me to choose course

[soy]

Hi Everyone
I have passed my 10th grade in SCIENCE group my Course contained following subjets.

Maths
English
Physics
Chemistry
Biology
History

And then i completed my High school grade 11th and 12th where my Group was ARTS which contains following subjects

English
History
Education
History of pakistan
History
Arabic

Now my Question to the Experts that with this previous Study if i apply for Computer Networking and Technical Support .Will my study be Mismatch and will my Visa be rejected ?
if yes
So please suggest me which course should i apply where i will not get Study mismatch

Thanx