Bots starting from a given HTTP link and then following all links on the provided Web site in a recursive way is called _______.

Which of the following are the devices on the customer's side of a WAN connection to a building, not including the actual connection point? (Select all that apply.)

A. CSU/DSU B. modem C. multiplexer D. router E. both A and D

A stream cipher takes one character and replaces it with another character. This output is known as the ____.

A. initialization vector B. integrity check value C. cyclic redundancy check D. keystream