i thinke when you profissional in single major is better but there is no reluct to know alittle about some information in evry thike. I mean the main information
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Johnny Shahin , IT and Software Manager, Project Manager , MPC Group
But, I think if you do not have a job yet and you are in the job search phase so It is better to be good in everything then when you enter the job you can concentrate on your job and be profissional in that one.