A:Answeryes of course it can. Nearly all TV's have mounting capabilities. It's pattern is VESA 200 x 200 which is listed in the specs section of the item, so make sure your mount accounts for that and the size of the TV but very standard size.
A:AnswerBoth
1st, you have a ethernet port on the back of the tv that will allow you to plug the cable directly into it. Its shaped like a larger phone cord.
2nd, you can go into the settings of your tv from there go to the internet settings and connect to any available wifi connection. Click on the selected wifi and put in the password if it requires it.