Does the Quit Command Auto Disconnect Active Sessions First?

If I am connected to one or more servers and now wish to disconnect and leave the application, I have always executed a Session | Disconnect (CTRL-SHIFT-D) for each session. Then I close the app with the X in the upper righthand corner. However, I was wondering ... I noticed there is the Quit option under the Commands menu. Does that option automatically disconnect any active sessions I have open BEFORE closing the application?

I guess I have two similar curiosities as well:
1.) Does closing the app with the X while connected to a server automatically disconnect it before the app closes?
2.) Is there a way that I haven't found to "Disconnect ALL" so that it will iterate through all the open sessions I have and disconnect them each with the one command?

Thanks in advance for the help.

dbthings wrote:

1.) Does closing the app with the X while connected to a server automatically disconnect it before the app closes?

Of course.

2.) Is there a way that I haven't found to "Disconnect ALL" so that it will iterate through all the open sessions I have and disconnect them each with the one command?

No, except for the Quit, as you know, but that also closes the application.