Whether Online Certification Is Useful For Carrier Growth In It Industry Especially In Networking?

Actually certification is immensely important for career growth, especially when it comes to IT industry. The two certifications  that you have mentioned basically stand at the same level, so it comes down to what career aims you have and which field or industry you want to explore. Both these certifications lead to CCIE qualification. If you want to pursue your career in the field of system security, go for CCSP. Whereas CCNP is designed for large networks and enterprises. So you have to choose according to your career aims.