Hi Shailu, as a fresher u need to be ready for any kind of job, dotn stick to one like ccna r testing, u can even have an option for development, web designer...first as a fresehr apply n try in all companies, ur aptitude should be gud, as well as ur mathe matical skills, communications skills, logical....
regarding ur core Question
CCNA is useful only if u do certification and its long process for CCNA where as software testing is easy to learn also its very short term course