Which is better, Cisco or Huawei, certified by network engineers in Zhengzhou? Which job is better?

I think it's better to choose Cisco, even though Huawei is already one of the top five equipment vendors. In fact, many of Cisco's equipment is also manufactured by Huawei. 80% of the switching access devices in the world are sold by Cisco, but many of them are processed by others, which is called OEM/ODM. Both Foxconn and BYD do OEM work. So Cisco has more authority than Huawei, but Huawei has more influence in China. After all, many people know Huawei better. You should choose according to your personal situation. If you have enough money, you can have both.