Courses by Open University of Sri Lanka / Courses in Sri LankaCertificate in Computer Networks and Security – Open University of Sri Lanka 2017 May 4, 2017September 1, 2017 Closing Date – 2017-June-01 Advertisement English Edition Preview Download Advertisement (English Edition) Download Application (English Edition) Instructions to Candidates Contact Numbers : 011-2881278 / 071-3266868 / 076-9969991 Email – [email protected] Source – Observereducation.lk Website / Open University of Sri Lanka Official Website