Stefan Oettl

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

CCNA

Understanding of Cisco Network Devices

Cisco Certified Specialist - Enterprise Core

Cisco Certified Specialist - Security Core

Cisco Certified Internetwork Expert Enterprise Infrastructure (CCIE Enterprise Infrastructure)

Cisco Certified DevNet Associate

Cisco Certified Specialist - Service Provider Core

Cisco Certified Internetwork Expert Security (CCIE Security)

Cisco Certified Internetwork Expert Service Provider (CCIE Service Provider)

Cisco Certified Design Specialist

Cisco Certified Design Expert (CCDE)