CCIE Security v6.1 Training by Nitiz Sharma 2x CCIE Certified Instructor. Excellent CCIE Success Rate. Bootcamps, Racks, & Workbook Manuals. https://nitizsharma.com/ccie-security-training-certification/CCIE Security v6.1 Training by Nitiz Sharma 2x CCIE Certified Instructor. Excellent CCIE Success Rate. Bootcamps, Racks, & Workbook Manuals.