Yoshinori Okayama

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

Cisco Certified Specialist - Enterprise Core

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

MCSA: Windows Server 2012 - Certified 2016

Cisco Certified Specialist - Security Core

Exam 413: Designing and Implementing a Server Infrastructure

Exam 417: Upgrading Your Skills to MCSA Windows Server 2012

MCSE: Cloud Platform and Infrastructure — Certified 2016

Exam 414: Implementing an Advanced Server Infrastructure

Cisco Certified Internetwork Expert Enterprise Infrastructure (CCIE Enterprise Infrastructure)

Cisco Certified Design Professional (CCDP)

Cisco Certified Specialist - Data Center Core

VMware Certified Professional 6 – Network Virtualization

Cisco Certified Specialist - Collaboration Core

Cisco Certified Specialist - Service Provider Core

Cisco Certified Internetwork Expert Security (CCIE Security)

Cisco Certified Internetwork Expert Data Center (CCIE Data Center)

Cisco Certified Internetwork Expert Service Provider (CCIE Service Provider)

Cisco Certified Internetwork Expert Collaboration (CCIE Collaboration)

Cisco Certified DevNet Specialist - Core

VMware Certified Implementation Expert 6 – Network Virtualization

Cisco Certified DevNet Professional

Cisco Certified DevNet Specialist - Enterprise Automation and Programmability

Cisco Certified Internetwork Expert Enterprise Wireless (CCIE Enterprise Wireless)

Cisco Certified Internetwork Expert Voice (CCIE Voice)

Cisco Certified Design Expert (CCDE)

Cisco Certified Internetwork Expert Storage Networking (CCIE Storage Networking)