________-based e-mail is managed by a browser and enables access to e-mail from anywhere that has Internet access

In the accompanying figure, the .exe file denoted by item 3 is written in ____ language.

A. high-level B. assembly C. machine D. syntax

In what order will the nodes be visited using a postorder, a preorder, an inorder, and a level-order traversal?

Consider the following tree structure. A / \ B C / \ \ D E F