What technology enables authorized users to use an unsecured public network, such as the internet, as if were a secure private network?

Write a function that draws a pool ball. this function should take as parameters, the color, the number that should go on the pool ball, and the location of the center of the pool ball. the radius of the pool balls should be pool_ball_radius, and the font of the number should be pool_ball_font. the text of the pool ball font should be white. drawpoolball(color.orange, 5, 100, 100); drawpoolball(color.green, 6, 50, 200); drawpoolball(color.red, 3, 150, 350); drawpoolball(color.blue, 2, 250, 140); to center the numbers on the pool ball, you should use the getwidth() and getheight() methods. you are allowed to call these methods on your text object, such as txt.

Martha is a healer, a healthcare provider, and an experienced nurse. she wants to share her daily experiences, as well as her 12 years of work knowledge, with people who may be interested in health and healing. which mode of internet communication can martha use?

All of the following are characteristics that must be contained in any knowledge representation scheme except