Trying to figure out forms authentication

Some questions on forms authentication:

1) Can one do one's own checking of username and password and totally bypass calling FormsAuthentication.Authenticate?

2) does the "new FormsAuthenticationTicket" create a cookie?

3) Can one send the cookie back to the browser just by doing the new call on the FormsAuthenticationTicket?

4) Does a session object contain nothing more than what is in the browser cookie?

5) Does the session object get created fresh from every forms submit using the browser's cookie that ASP.Net requests from the browser on every page submit?

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconformsauthenticationcredentials.asp

    void SubmitBtn_Click(Object Source, EventArgs e)
    {
        // Pull credentials from form fields and try to authenticate.
        if (FormsAuthentication.Authenticate(UserName.Value,
                UserPassword.Value))
        {
            FormsAuthenticationTicket ticket = new
                FormsAuthenticationTicket(UserName.Value, false, 5000);

            FormsAuthentication.RedirectFromLoginPage(UserName.Value,
                Persist.Checked);
        }
    }
.

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