Expert Instructor with 20+ Years of Experience

Glen E. Clarke is a highly experienced IT trainer, consultant, and bestselling author with over two decades in the information technology industry. As the founder and lead instructor at DC Advanced Technology Training (DCATT), Glen has helped thousands of students achieve their IT certification goals and advance their careers.

Professional Background

Glen specializes in IT security, networking, and programming instruction. His practical, hands-on teaching approach combines real-world experience with comprehensive certification preparation—so students not only pass exams, but also build skills they can apply immediately on the job.

Published Works

Glen has written numerous bestselling certification study guides, including:

• CompTIA PenTest+ Certification For Dummies, 2nd Edition
• CCT/CCNA Routing and Switching All-in-One Exam Guide
• A+ Certification All-In-One For Dummies
• Network+ Certification Study Guide, 6th Edition
• Security+ Certification Study Guide, 2nd Edition

Teaching Philosophy

Glen believes in practical, hands-on training that goes beyond memorization. His courses emphasize:

• Real-world application of IT concepts
• Interactive labs and practical exercises
• Exam preparation strategies that work
• Career-focused skill development
• Ongoing support for student success

Certifications & Expertise

Glen holds multiple industry certifications and maintains expertise in:

• IT Security & Penetration Testing
• Network Infrastructure & Administration
• Cloud Computing (Microsoft Azure)
• Programming & Software Development
• Database Management
• IT Training & Adult Education

Industry Recognition

Under Glen's leadership, DCATT has become:

• An authorized Microsoft Learning Partner
• A provider under Federal Government Standing Offer (E60ZH-140001/041/ZH)
• A trusted training provider for organizations across Canada