Certification gives you credibility, industry recognition, and best alternate for experience thus helps you get a job with no experience in the IT field.
Employers trust and feel more confident in hiring people who are certified by companies such as CompTIA, Microsoft, and Cisco.
In general, certified people start a job with higher salary even without any experience.
It substitutes and complements college degree.
Certification offers a means to companies to match candidates to job requirements.