I'm using the article class to generate an exam paper. In this exam paper, I want the subject header to be bold and centered aligned as shown in the picture below:

I tried a couple of options as mentioned in other posts, e.g. this one.
Is there any way to get the same text effect with the article class without use of any extra package (like verbatim)?

titlesecshould make this straight forward... without a package it's not quite so, but still doable – cmhughes Dec 07 '13 at 05:47\titleorsection? You need at leastcolororxcolorpackages. – Dec 07 '13 at 05:59