Which tool should an application developer use to help identify input validation vulnerabilities?

What numbers are displayed in the list box by the following program segment?

``` Dim states() As String = {"Colorado", "New Mexico", "Arizona", "Utah"} Dim query = From state in states Where state.EndsWith("o") Select state.Length For Each number in query lstBox.Items.Add(number) Next ``` (A) 8 and 10 (B) 8, 10, 7, 4 (C) 8 (D) 29

When a limitation in a single computer system component slows down the entire system, which of the following occurs?

A. bottleneck B. counterdown C. crashdown D. baseline