David Lehner

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

CCNA

Understanding of Cisco Network Devices

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 Design Associate (CCDA)

Understanding Design for Cisco Internetworking Solutions

Double VCP - Data Center Virtualization & Network Virtualization

DevNet Associate

VMware Certified Professional – Data Center Virtualization 2019

Cisco Certified Specialist - Data Center Core

NetApp Certified Data Administrator ONTAP Professional

NetApp Certified Data Administrator ONTAP Professional

VMware Certified Professional 6 – Network Virtualization

Cisco Certified Network Associate Data Center (CCNA Data Center)

Cisco Certified Network Professional Data Center (CCNP Data Center)

NetApp Certified Data Administrator, Data ONTAP 7-Mode

Cisco Certified Internetwork Expert Data Center (CCIE Data Center)

Understanding of Cisco Data Center Technologies and Networking

NetApp Certified Storage Installation Engineer, ONTAP

VMware Certified Professional - Network Virtualization 2020

Cisco Certified Specialist - Data Center ACI Implementation

Cisco Certified Specialist - Data Center Operations

NetApp Certified Implementation Engineer - SAN Specialist, Data ONTAP 7-Mode

NetApp Certified Support Engineer

Cisco HyperFlex for Systems Engineers

NetApp Accredited Hardware Support Engineer

NetApp Certified Implementation Engineer - SAN Specialist, E-Series

Implementing and Operating Cisco Data Center Core Technologies

VMware Certified Advanced Professional - Network Virtualization Design 2020

VMware SD-WAN Troubleshoot 2021

VMware SD-WAN Design and Deploy 2021