For the first question regarding statements about the internet, the only false statement is IV: "There are no negative consequences of the Internet, it is purely positive." Therefore, the true statements are I, II, and III. Thus, the correct response is I, II, and III.
For the second question, the widely agreed upon set of rules that standardize communication between machines is known as protocols. The most common example of these protocols is the Internet Protocol Suite, often referred to as TCP/IP.