Does factory reset remove the recovery security questions for Netgear?

> I bought a used Nighthawk AC 3200 [...]

   "AC3200" is a speed, not a model number.  Look for "Model" on the
product label.

> [...] I have reset the name and password to the default. [...]

   How, exactly?

   Visit http://netgear.com/support , put in your (actual) model number,
and look for Documentation.  Get the User Manual (at least).  Read.
Look for "Types of Logins" and "Reset".  Further reading might not hurt,
either.

> [...] whenever I tried logging into the website to change the WiFi
> name, there are two security questions [...]

   "tried" how, exactly?  The usual cause for getting security
questions is putting in the wrong user name and/or password.  A
settings reset (done properly) should restore the default password.