Can God know that he is infinite?

[Prodigy54321]

So I'm dancing in a thunderstorm and get struck by lightning and die...so now I'm chillin up in heaven and my boy, the G O D, is about to introduce himself.

He tells me that he is God...He claims to be outside of the universe and he is omnipotent and omniscient and infinite...he has existed for all time, uncaused and will exist for all time.

Can he even know himself whether or not the things he said are true?

EDIT: this is obviously about NotReady's talk about limits to human knowledge...aren't there limits to every being's knowledge?

Isn't it possible that there is actually a "higher" God who has limited the "smaller" god's knowledge..yet he still thinks that he is THE GOD?..and so on?