Getting a technical certification is not easy. Just studying a brain dump and self test will not get you the knowledge and and experience that employers are looking for. Certification requires work and commitment to complete. Study and TEST. If you don’t pass, STUDY and consider this an indication of what you honestly know about a subject.
Employers see certification like a degree. The certification represents a focused knowledge about a specific skill set. The employer is willing to pay top dollars for that specific skill that matches the job.
Once the certification is on the resume you are representing the industry as a college degree represent the college.
Get your degree, get your experience, get your certification.