Is certification the only criteria to fill in demand cyber security professional position?

-       Certifications are major criteria because it notifies the employer that you are certified in certain areas. Other requirements are work experiences, degrees, and your soft and hard skills.

Is eligibility requirements for security related certification align with demand?

-       Yes, security related certifications are required for most commercial cybersecurity careers. The employers are mostly looking for certifications in Cisco, RSA, Symantec are just to name a few.