Alexander Vasilev

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 Network Associate Security (CCNA Security)

Cisco Certified Design Associate (CCDA)

Understanding Cisco Network Security

Cisco Certified Specialist - Security Core

Cisco Certified Design Professional (CCDP)

Understanding Design for Cisco Internetworking Solutions

Cisco Certified Network Professional Security (CCNP Security)

Cisco Certified Specialist - Enterprise Design

Associate of ISC2

Palo Alto Networks Systems Engineer (PSE)- Foundation

Cisco Certified Specialist - Security Identity Management Implementation

Cisco Certified Specialist - Network Security Firepower

Palo Alto Networks Certified Network Security Administrator

Cisco Certified Specialist - Network Security VPN Implementation

Cisco Certified Specialist - Web Content Security

Palo Alto Networks Systems Engineer (PSE) - Strata Associate

Cisco Certified Internetwork Expert Security (CCIE Security)

Security Architecture for System Engineers