MATKO PRSTACIC

Cisco Certified Network Associate Routing and Switching (CCNA Routing and Switching)

Certified Information Systems Security Professional (CISSP)

Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching)

Cisco Certified Network Professional Enterprise (CCNP Enterprise)

Cisco Certified Network Associate Security (CCNA Security)

Cisco Certified Network Professional Security (CCNP Security)

Cisco Certified Internetwork Expert Security (CCIE Security)