Jens Reimann

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

CCNA

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

Cisco Certified Design Associate (CCDA)

Cisco Certified Specialist - Security Core

Cisco Certified Network Professional Security (CCNP Security)

Cisco Certified Specialist - Collaboration Core

Cisco Certified Specialist - Security Identity Management Implementation

Cisco Certified Network Professional Collaboration (CCNP Collaboration)

Cisco Certified Specialist - Collaboration Applications Implementation

Cisco Certified Specialist - Collaboration Call Control & Mobility Implementation

Cisco Certified Specialist - Collaboration Cloud & Edge Implementation