Which of the following components within the android architecture stack take care of displaying windows owned by different applications?

From the following spam mail header, identify the host IP that sent this spam?
From [email protected] [email protected] Tue Nov 27 17:27:11 2001 Received: from viruswall.ie.cuhk.edu.hk (viruswall [137.189.96.52]) by eng.ie.cuhk.edu.hk (8.11.6/8.11.6) with ESMTP id fAR9RAP23061 for ; Tue, 27 Nov 2001 17:27:10 +0800 (HKT) Received: from mydomain.com (pcd249020.netvigator.com [203.218.39.20]) by viruswall.ie.cuhk.edu.hk (8.12.1/8.12.1) with SMTP id fAR9QXwZ018431 for ; Tue, 27 Nov 2001 17:26:36 +0800 (HKT) Message-Id: >[email protected] From: "china hotel web" To: "Shlam" Subject: SHANGHAI (HILTON HOTEL) PACKAGE Date: Tue, 27 Nov 2001 17:25:58 +0800 MIME-Version: 1.0 X-Priority: 3 X-MSMail- Priority: Normal Reply-To: "china hotel web"

Which one of the following is not a first response procedure?

The given image displays information about date and time of installation of the OS along with service packs, patches, and sub-directories. What command or tool did the investigator use to view this output?

When investigating a potential e-mail crime, what is your first step in the investigation?