In the declaration statement below, ____ acts as an object handle.Scanner keyboard = new Scanner( System.in );

A ________ blocks unauthorized access to a network

A) WPS B) data packet C) firewall D) wireless access point

Gridlines on a chart in Excel 2013 are:

A) lines used to depict trends and forecast future data. B) horizontal or vertical lines that span across the chart. C) numeric values that describe a single value on a chart. D) a visual representation of numerical data.