John’s Subway Sandwich shop’s concerns

John’s Subway Sandwich shop, a local food shop, has contacted you as they have heard good things about your network design skills. They currently have a wireless network set up for the shop but would like to allow patrons and internal workers to browse the web while they are visiting the shop (as necessary – more for patrons). They are worried, however, about the security considerations that go with this extension of their network.
John’s Subway Sandwich shop has requested that you send them your ideas and recommendations in memo form on how to create one overall network that incorporates the two wireless networks (the protected internal shop network and the unprotected public network).
Using either a Microsoft Word Memo template or another example, create a minimum 2-page memo outlining the request, answering all of John’s Subway Sandwich shop’s concerns, including a diagram. You can use any drawing software (Visio, PowerPoint, Word, etc.) to create the diagram. However, the diagram itself is not included in the length of the memo.