Edgar has a trio of granddaughters and two of them are into robotics. Leo says that's a great hobby that can teach them and move them into greater endeavors. Currently, they're using LEGO Mindstorms. His kids are also involved in a special program partnered with NSA to teach them to use their skills to serve the country. He's realized that he needs to get them a computer so that they can learn more.
Victor wants to know how the Internet works and who owns it. The Internet is essentially a collection of networks. There's a great book about its foundation called Where Wizards Stay Up Late: The Origins Of The Internet by Katie Hafner. It was a project of DARPA which got computers and networks to talk to each other. So in essence, the Internet is merely a protocol, with individual networks owning each other. The wires between them, however, are owned by ISP companies.
On the eve of Apple's iPhone 6S announcement, Leo says that 77% of US users have smartphones and the majority of internet use as a result is done with them. Leo also says that translates worldwide as mobile phones are the number one way to use the Internet as well. Leo says that this is largely due to the flood of cheap Android phones out there, like the Motorola Moto C.
Anthony shares his internet access with a tenant who wants hardwire access to the modem. Leo says that makes it difficult to isolate, and he'll need a second router, or better yet, a third router. He should segment them on the network so that the tenant doesn't have access to Anthony's data. Leo recommends checking out PracticallyNetworked.com for how to do it.
Clyde heard about the Jeep that got hacked and worries that it could happen to his car since he connects his phone to the car with USB. Leo says that simply connecting the phone to the car stereo isn't sufficient for this. The Jeep hack involved using the car's built-in 3G access. The real flaw is that the entertainment unit of the car and the computer running the car (braking, ignition, etc), are not physically separated. They are connected in many cars through the CamBus, or internal car network.
Brian has trouble watching streaming video: the internet "cuts out" on him. Leo says it sounds like an overheating router. The router is just a cheap, dumb computer and if it's running a lot of streaming, chances are his router is overheating. If it is, then it may be time to get a new one. Same thing with the modem. He should also try unplugging the router, waiting ten seconds, and plug it back in. If it comes back, then he'll know he needs a new router.
Aiden wants to know if investing in domain names is a good idea. Leo says that domain investing is just a fancy term for domain squatting. Leo doesn't think this is a legit practice. It's also risky as the ICANN can award trademarked domains to the trademark owner for free, leaving him out in the cold. Generic terms can be a risk, but he'd only need one to pay off for it to succeed.
Jim is frustrated because he'll be watching a video on his phone and it'll buffer. Leo says that's a speed/bandwidth issue. Streaming will buffer about 30 seconds of video before starting to get ahead. Then if the packets come out of order or slow down, the buffer is there. If it happens a lot, the buffer will just run out and rebuffer. So it has to do with connection, bandwidth, and the ability of your system to keep up. Faster internet will solve the problem, as will a lower resolution stream.
Mike is taking his family to the Baltics for the summer and has already unlocked his mobile phones. He's thinking about buying the unlimited data plans on the cruise ship. Leo says not to. It's woefully slow. They use a marine satellite and it has very little bandwidth. He'd end up getting up at 3 in the morning to use the Internet and download his email. Not worth $30 a day, especially since only one person can be signed on at a time.
Ken's ISP in the Dominican Republic locks down his router so he can't make any changes at all. Leo says as long as he can change the password and give it encryption, he'll be OK with everything else. But Ken says it causes his cell phone to lose connection when he's using VOIP on his SIP phone. Leo says he'll need a QOS feature that will prioritize internet telephones.