Inscrivez-vous ou connectez-vous pour rejoindre votre communauté professionnelle.
Both Cisco and Microsoft are best . its depend upon your carrer choice
CISCO
popular form of IT certification for IT professionals is the CCNA (Cisco Certified Network Associate). The certification is designed for professionals which have work experience with cisco routers, switches and other it equipment. The certification also proves an ability to design, set up, install and maintain networks, including WAN and LAN networks. This knowledge is useful to install, commission and configure firewalls, routers, and servers.