Surveys aren't always fake, but 99% of the time they are. If you want to get through one, give false info for everything. But please make sure they have a video showing in detail what it does. If it shows that it has 99999 simoleons and 999 energy, don't believe it unless in the video it shows the person refreshing the browser. Generally they're just gimmicks to get you to download them but won't work in the long run.
And remember to always, always, ALWAYS scan EVERY file you download! (Even if they don't come from a survey.)