I was suggest to get a wireless access point to solve some of my problems on getting internet access to another building on my property.

My questions are:
1) How doe Wireless APs work?
2) Where would I plug it in at?
2b) Would it need to be plugged into the router?

Here is what I was advised to get:

http://www.bestbuy.com/site/olspage.jsp?skuId=8891924&st=netgear&type=product&id=1212192931599#tabbed-customerreviews

Let me know if this is the best choice/value.

Thanks in advance

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