Liu Honglei

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

CCNA

Understanding of Cisco Network Devices

Certified Information Systems Security Professional (CISSP)

Cisco Certified Specialist - Enterprise Core

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

Cisco Certified Network Professional Enterprise (CCNP Enterprise)

Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation

Cisco Certified Specialist - Security Core

GIAC Certified Incident Handler (GCIH)

GIAC Advisory Board

Cisco Recurring Revenue Metrics