File Tab is your answer
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Most of the web applications are written with SPA frameworks such as Angular, React, Vue.js, etc. The problem with these SPAs is that the single page is loaded in the browser once and then the framework will take care of all the routing among pages and gives the impression to the user that it is a multi-page application. When you refresh your page in the browser that single page called index.html is reloaded and you will lose the entire state of the application.
Answer: TDMA(Time division multiple access)
Explanation: Time-division multiple access is the method that is used by GSM(Global system for mobile communication) usually for the separation process of the data.It is a way in which a same frequency is shared by different time slots of signal.It has high flexibility and so thus is helpful for the GSM network and provides easy services of division.It divides the data according to the time period slots in a GSM network.
In some aspects, yes but these have recently been outweighed with the ad boycott youtube has not to mention google plus wasn't the most popular, to begin with, but in an overall sense yes as the name google is more often used than Facebook or twitter