The divide and conquer strategy means breaking down a larger task, problem, or group into smaller, more manageable pieces. Today, we use this strategy in various fields such as computer science, business, and politics. With this centuries-old technique, lots of complex problems in many areas have already been solved.
A fixed VoIP is an internet-based phone line corresponding to a specific physical address. A non-fixed VoIP is another internet-based phone line, but it does not correspond to a particular address. Both come with benefits and neither is inherently better than the other as different situations call for separate systems.
Offshore software development involves hiring from distant countries to work remotely. Nearshore is similar to offshore, except companies hire from neighboring countries or countries with comparable time zones with few cultural differences. Onshore software development involves hiring workers from your own country.
Wi-Fi is just a name. Originally, Wi-Fi Alliance developed a technology based on IEEE 802.11 that we know today as Wi-Fi but needed a name that was more catchy than IEEE 802/11b Direct Sequence. The Wi-Fi Alliance hired a company, Interbrand, to come up with a name. They sent over 10 options, including Wi-Fi.