A national hotel chain is using a combination of on-premises data centers and public cloud services for their IT infrastructure. What type of IT infrastructure model is this? Select the correct answer.

Question 1This is an extract from an XML layout file: 123456789<Buttonandroid:layout_width=”wrap_content”android:layout_height=”wrap_content”android:text=”click”android:id=”@+id/myButton”android:layout_alignParentTop=”true”android:layout_alignParentLeft=”true”android:layout_alignParentStart=”true”android:onClick=”go” />Which method must be defined in your activity Java code in order to display a pop-up message when this…