Ballarat City council is interested in the growing tourism market and opens an office to launch services for people who travel on holidays and cannot look after their properties (houses or units) while they are away. This new office currently has 200 employees whose PCs are linked by a small LAN. Each PC shares files and also services (such as printing) to the others on the LAN. What type of network model is suitable to build a small LAN for this new office? How can you protect your LAN from Malware attacks? (5MARKS]