To determine if Ruby Gems is installed, issue the command ____.

How is a digital certificate created?

A. A subject's public key is signed by a CA's private key. B. A random key is encrypted by a recipient's public key. C. A communication exchange of discover, offer, request, and acknowledge occurs. D. A Diffie-Hellman key exchange is performed.

Each time a fractal’s pattern is applied to it, the fractal is said to be at a new ________.

a. level. b. depth. c. order. d. All of the above.