OCR GCSE (J277) SLR 1.3 Wireless encryption This video explains some of the ways in which we can encrypted wireless communications. Also in this topic... OCR GCSE (J277) SLR 1.3 Types of networks OCR GCSE (J277) SLR 1.3 Star and mesh network topologies OCR GCSE (J277) SLR 1.3 The use of IP and MAC addressing OCR GCSE (J277) SLR 1.3 Standards OCR GCSE (J277) SLR 1.3 The concept of layers