Module 7 Summary
Chapter 7 deals with wireless networks and devices. The first generation or 1G wireless came into being in 1978 and was a relatively slow, voice only network. The next iteration of wireless networking was 2G, or voice and text data transmission. The introduction of SMS or text message introduction cannot be understated. Like most cell phone users, text messages is my most commonly used manner or wireless communication. Next came 3G wireless networks, which had fast enough transfer rates to support the smartphones that allows us to use phones to play music, watch videos, run applications, and use GPS features. After the leaps made with 3G technology, service providers have improved coverage and data speeds with a 4G and 5G network launches.
Other types of wireless networks include a wireless LAN, such as WI-FI, and personal area networks, like bluetooth. Bluetooth and WI-FI are wireless capabilities that have shaped my everyday life. I use Bluetooth to connect my smartphone to my trucks entertainment system. I use WI-FI to work, stream media content, and improve my phone's performance. With wireless transmission of data comes real security concerns. Over-the-shoulder-attacks, evil-twin attacks, and man-in-the-middle-attacks occur when a user on a public wireless network is targeted by a hacker due to the lack of security in these situations. As a result of this, I make it a rule never to use a non password protected WI-FI network.