Propose THREE solutions for the WAN network infrastructure of the organisation, whereby the HQ and TEN data centres from each country in South East Asia are to be connected together. Provide detail justifications for your proposal with scenarios explanation. Example of proposed solutions are (but not restricted to): a. Network optimisation (e.g. compression, caching, optimisation protocol) b. Connections (e.g. broadband, SONET, MPLS) c. Security measures (e.g. firewalls, IDS, encryption, VPN)