Daniel Lachance Daniel Lachance, MCITP, MCTS, CNI, IBM Certified Instructor, CompTIA A+, CompTIA Network+, CompTIA Security+, is a technical trainer for Global Knowledge and has delivered classroom training for a wide variety of products for the past 17 years. Troughout his career he has also developed custom applications and planned, implemented, troubleshot, and documented various network configurations. Lachance was the technical editor on CompTIA Network+ Certification Study Guide, Fourth Edition and other certification books. Read More Read Less