Gary Stillman

CCNA

Cisco Certified Specialist - Enterprise Core

Cisco Certified Network Associate Security (CCNA Security)

Understanding Cisco Network Security

Cisco Certified Specialist - Security Core

Cisco Certified Network Professional Security (CCNP Security)

Cisco Certified Specialist - Data Center Core

Cisco Certified Specialist - Security Identity Management Implementation

Cisco Certified Specialist - Network Security Firepower

Cisco Certified Specialist - Network Security VPN Implementation

Cisco Certified Specialist - Web Content Security

VMware Certified Associate 6 – Data Center Virtualization

VMware Certified Professional - Network Virtualization 2023