Not all but most of them require internet connection.
Both yes and no. If you would download some games from Internet, this would definitely require a connection. Some games also may store your progress or high-score on their websites, or check for upgrades, which also requires internet access. Otherwise, it's not needed.
No. (Obviously, online multiplayer does require an Internet connection.)
Using McAfee's Speedometer one is able to find out how fast their internet connection is. The test does not require a download and can be found on the official McAfee website.
No, GTA V on PS4 does not require an internet connection to install the game from a physical disc. However, an internet connection is needed for downloading updates, patches, or accessing online features like GTA Online. If you purchase the game digitally, you will need internet to download it.
yes.
yes
Yes a modem and an ISP (Internet Service Provider) are required for an internet connection. Depending on the type of internet the ISP will issue you a modem.
Many products on the market today require wifi to work. Many of the smartphones today require an internet connection of some sort, usually wifi, to be able to download apps or do anything really on the phone.
Command and Conquer does not require internet connection to play However, Command and Conquer 4: Tiberium Twilight can be quite strange if you do not have a constant internet connection while playing.
Yes it does
NetFlix will require an Internet connection to work. Therefore, if you do not have an internet connection, you will not have Netflix working in your place of residence.