There are major and minor differences between Wi-Fi and 4G. It's more important to understand that there is a difference than to know the technical details, most of which is who controls the security of the network and the costs associated to it. The security associated to legacy 2G and 3G networks is comparable to weaker Wi-Fi encryptions. Adding layers of security to whatever network is used is critical to overall security.
- [Narrator] Wifi and 4G are not the same.…A little history. 802.11 came about in the 1980s.…It was known as WiFi and assigned frequencies in…900 megahertz 2.4 gigahertz and 5 gigahertz.…Over the next ten years, 802.11 A and B were released.…In the 2000s, 802.11 G was introduced…increasing the range and reliability of WiFi.…802.11 N introduced a port to the less populated…5 gigahertz frequencies.…
It increased speeds dramatically.…802.11 AC is the latest and can transfer…data over one gigabits per second.…1G, or first generation was around in the 1970s.…2G, or second generation, came to life…in the early 1990s with GSM.…GSM standa for Global System for Mobile Communications.…2.5G was a middle step with Egde…(Enhanced Data Rates for GSM Evolution)…and GPRS (General Packet Radio Service).…
Third generation, or UTMS…(Universal Mobile Telecommunications System),…brought about speeds faster than dial up.…Well, up to 2 megabits per second when not moving.…Moving can drop that to about 145 kilobits per second…which is technically still faster than dial up.…
Note: This course was recorded and produced by Mentor Source, Inc. We're pleased to host this training in our library.
- Balancing security, convenience, and mobility
- Working in wireless and wired situations
- Avoiding common threats
- Enabling firewalls
- Setting up a VPN and router