Editor's professional qualification certificate CCNA has always had a reputation of "leading to high salary" abroad, although in China, due to various reasons, CCNA is not as hot as a few years, but its gold is still for many people. The unit pays attention to it, it can be said that as long as you have a CCNA's valid certificate (its validity for three years), the employer will definitely focus on investigation, and the chance of success is naturally high, but more people have CCNA. I don't understand, or only to understand a little bit, especially about the part of the exam, more concerned, the following content is to tell you the specific situation in the exam.
