Don Johnston
Instructor
  • Lynn Haven,
  • Florida,
  • United States of America
Member Since: 2000/10/30
Industry: Computer & IT
Top Skills:
Tech Certifications:
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Activity
Points this month5,350
Total points5,320,102
Questions: 20
Solutions: 4016
Articles:
Videos:
Courses:
Posts:
Group Discussions: 2
Live: 2
Professional Background
Contract Instructor
Firefly
September 2010 – Present
Taught Cisco Data Center courseware
Contract Instructor
Global Knowledge
January 1998 – Present
Cisco Certified Systems Instructor.
Taught multi-vendor routing and switching.
Taught Cisco classes related to CCNP certification
Consultant
Digital Systems Support. Inc.
January 1987 – Present
Provide network consulting services.
Develop training courseware for Cisco Systems.
Contract Instructor
American Research Group
January 1996 – January 1998
Taught multi-vendor routing and switching using Cisco, 3Com, Bay and Cabletron equipment.
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Education
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Full Biography

Cisco Certified Systems Instructor, CCNP, Microsoft Certified Trainer, MCSE, CNE, Private Pilot, ASEL/IR.

numa at comcast.net

Languages
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Level Progress

Current: Level 51
Don needs 87,898 points to level up.
LVL 52
  • Overall
    51
  • Routers
    40
  • Switches / Hubs
    35
  • Networking
    22
  • Network Architecture
    21
  • Networking Hardware-Other
    19
  • Network Operations
    14
  • Cisco
    13
  • Network Management
    12
  • Networking Protocols
    11
  • Hardware Firewalls
    10
  • Network Analysis
    10
  • Broadband
    8
  • TCP/IP
    8
  • Network Security
    5
  • DHCP
    5
  • Windows Networking
    5
  • Voice Over IP
    5
  • VPN
    4
  • Wireless Networking
    4
  • Internet Protocols
    4
  • Dell
    3
  • Hardware
    3
  • Telecommunications
    3
  • IP Telephony
    3
  • Software Firewalls
    2
  • Server Hardware
    2
  • SSH / Telnet Software
    2
  • VMware
    2
  • Security
    2
  • DNS
    2
  • Windows Server 2008
    2
  • Wireless Hardware
    2
  • Internet Protocol Security
    2
  • Disaster Recovery
    2
  • Windows Server 2003
    2
  • Storage
    2
  • Components
    2
  • Windows 7
    2
  • iOS
    2
  • Software
    2
  • Microsoft Server OS
    2
  • Linux Networking
    1
  • Storage Software
    1
  • Exchange
    1
  • Windows XP
    1
  • Virtualization
    1
  • Remote Access
    1
  • Azure
    1
  • Operating Systems
    1
  • Anti-Virus Apps
    1
  • Active Directory
    1
  • IT Administration
    1
  • Laptops Notebooks
    1
  • Fonts Typography
    1
  • Microsoft Applications
    1
  • MultiMedia Applications
    1
  • Windows OS
    1
  • Chat / IM
    1
  • Windows Server 2012
    1
  • Microsoft Legacy OS
    1
  • Internet of Things
    1
  • Apple Software
    1
  • Consulting
    1
  • Scripting Languages
    1
  • Project Management
    1
  • System Utilities
    1
  • Microsoft Visio
    1
  • Mobile
    1
  • Powershell
    1
  • Apple Networking
    1
  • Unix OS
    1
  • iPhone
    1
  • Encryption
    1
  • Mainframe OS
    1
  • Printers and Scanners
    1
  • OS Security
    1
  • Vulnerabilities
    1
  • Displays / Monitors
    1
  • Microsoft IIS Web Server
    1
  • Microsoft Access
    1
  • PC
    1
  • .NET Programming
    1
  • C#
    1
  • Conferencing Software
    1
  • Editors IDEs
    1
  • Lotus IBM
    1
  • Mac OS X
    1
  • Microsoft Server Apps
    1
  • PHP
    1
  • Web Browsers
    1
  • Web Services
    1