Correct

持证

/ chí zhèng / 
Strokes

Example

As a Verb

hold a certificate

1
Chízhèng
持证
jiǎnchá
检查

conduct an inspection with required certificates

As a Verb

have certified qualifications

2
Chízhèng
持证
shànggǎng
上岗

take up a job with relevant credentials